Patent
US 9,184,553GATE-TUNABLE GRAPHENE-FERROELECTRIC HYBRID STRUCTURE FOR PHOTONICS AND PLASMONICS
OZYILMAZ, Barbaros
National University of Singapore·US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,184,553Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic illustration of working principle of graphene-based saturable absorber. WO 2013/184072 PCT/SG₂₀₁₃/000237 -4- [00 16]
FIG. 2 (a) is a schematic illustration of the roll-to-roll process of large area graphene from Cu foil substrate to PVDF substrate via a sacrificial polymer …
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 4 (a) is a schematic illustration of a stacked graphene-PVDF saturable absorber device.
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …
FIG. 6 is perspective, close-up end view of a saturable absorber device in the form of an optical fiber held within a ferrule, the fiber having an end facet that …
FIG. 7 is a perspective view of a saturable absorber device in the form of a fiber pigtail with a multilayer graphene film arranged on the fiber pigtail end. …
FIG. 8. is a schematic diagram of an example fiber laser having a ring cavity that uses a graphene-ferroelectric hybrid saturable absorber device. [0023]
FIG. 9 is a schematic diagram of a fiber laser having a linear cavity that uses a graphene- ferroelectric hybrid saturable absorber device. WO 2013/184072 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
K. S. Novoselov, D. Jiang, F. Schedin, T. J. Booth, V. V. Khotkevich, S. V. Morozov, A. K. Geim, PNAS, 102, 30, 10451 (2005).
The saturable absorber device of Claim 1, wherein the doping level of the graphene-hybrid saturable absorber is dynamically modifiable via electrostatic gates to tune the resonant wavelength.
The saturable absorber device of Claim 1, wherein the ferroelectric material is a ferroelectric thin film.
The saturable absorber device of Claim 1, wherein the graphene substrate is patterned in a micro-shape structure, comprising a circular array, a micro-ribbon array, or a combination thereof.
The saturable absorber device of Claim 1, wherein the optical element comprises an optical fiber.
A method of forming [[a]] the saturable absorber device of Claim 1, comprising: a) providing an optical element; and b) supporting with the optical element a saturable absorber material comprising a ferroelectric material and a graphene substrate.
K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, L. V. Grigorieva, A. A. Firsov, Science, 306, 5696, 666, (2004).
Y. Zheng et al., App l. Phys. Lett. 94, 163505 (2009).
L. Ju, B. Geng, J. Ho rn g, C. Girit, M. Martin, Z. Hao, H. A. Bechtel, X Liang, A. Zett l, Y. R. Shen and F. Wang, Nature Nanotech, 6, 630, (2011).
H. X. Ji, L. L. Zhang, M. T. Pettes, H. F. Li, S. S. Chen, L. Shi, R. Piner, R. S. Ruoff, Nano Lett, 12, 5, 2446 (2012).
S. Bae, H. Kim, Y. Lee, X. Xu, J.-S. Park, Y. Zheng, J. Balakrishnan, T. Lei, SVG 14405671.12-04-2014.I₃HR₆VV₈PXXIFW4.SPEC3772146.15.617.1482.2141.1535.svg 0.177 5.08 Chemistry Black and white Hong, S. I ijima, Nature Nano, 5, 574, (2010).
U. S. Patent No. 6815008, K. Ichikawa, G. Nishino, N. Kaneko.
T. Kaura, R. Nath, M. M. Pe rl man, J. Phys. D: App l. Phys. 24, 1848, (1991). [0075] The teachings of all patents, published applications and references cited herein are incorporated by reference in their entirety. [0076] While this invention has been particularly shown and described with references to example embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims. Claims What is claimed is:
A fiber laser, comprising: a ring or linear laser cavity; and a saturated absorber device arranged within the laser cavity, the saturable device, comprising: an optical element, and a saturable absorber material supported by the optical element, the saturable absorber material, comprising ferroelectric material and a graphene substrate, wherein the graphene substrate is layered with the ferroelectric material to form a gate tunable graphene-ferroelectric hybrid saturable absorber.
The fiber laser of Claim 14, wherein the saturable absorber device is configured in the laser cavity so as to provide at least one of: wavelength tuning, mode- locking, Q-switching, optical pulse shaping, optical switching, and optical signal processing. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -5-
The fiber laser of Claim 14, wherein the ferroelectric material is 1) a polymer or copolymer comprising vinylidene fluoride, trifluoroethylene, 11- aminoundecanoic acid, thiourea, or a combination thereof; 2) a ceramic material comprising bismuth ferrite, barium titanate, lead titanate, sodium nitrite, potassium phosphate, or a combination thereof; 3) a hydrogen-bonded supramolecule polymer or copolymer comprising 5,5'- dimethyl-2,2'-bipyridine, 2,5-dichloro-3,6-dih ydrox y-p-benzo q uinone, 2,5-dibromo-3,6- dih ydrox y-p-benzo q uinone, 2,5-diiodo-3,6-dih ydrox y-p-benzo q uinone, or a combination thereof; or 4) an organic-inorganic compound comprising triglycine sulfate, H-1,4- diazabicyclo [2.2.2] octane ammonium perrhenate (H-dabcoReO 4), trisarcosine calcium chloride, or a combination thereof. 17.-19..
The fiber laser of Claim 14, wherein the optical element comprises an optical fiber optionally containing a mode lock assembly.
canceled
canceled
canceled
A method of fabricating the saturable absorber material, comprising: a) depositing a layer of graphene onto a substrate by template-directed chemical vapor deposition (C V D); b) depositing a layer of ferroelectric material onto the graphene; c) removing the substrate via wet chemical etching; and d) doping the material from step (c) by applying an electric field to thereby obtain the graphene-ferroelectric hybrid saturable absorber material. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -6-
The method of Claim 23, wherein step (b) through step (c) are performed using roll-to-roll technique.
The method of Claim 23, wherein step (d) is performed using corona poling technique to obtain the desired remnant polarization state of the ferroelectric material layer. 1735152.v 1
Layer stacks claimed or described, ordered top of device to substrate.
gate-tunable graphene-ferroelectric hybrid saturable absorber device
fiber laser with graphene-ferroelectric hybrid saturable absorber
Materials described outside the worked examples.
graphene
ferroelectric material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,184,553Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic illustration of working principle of graphene-based saturable absorber. WO 2013/184072 PCT/SG₂₀₁₃/000237 -4- [00 16]
FIG. 2 (a) is a schematic illustration of the roll-to-roll process of large area graphene from Cu foil substrate to PVDF substrate via a sacrificial polymer …
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 4 (a) is a schematic illustration of a stacked graphene-PVDF saturable absorber device.
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …
FIG. 6 is perspective, close-up end view of a saturable absorber device in the form of an optical fiber held within a ferrule, the fiber having an end facet that …
FIG. 7 is a perspective view of a saturable absorber device in the form of a fiber pigtail with a multilayer graphene film arranged on the fiber pigtail end. …
FIG. 8. is a schematic diagram of an example fiber laser having a ring cavity that uses a graphene-ferroelectric hybrid saturable absorber device. [0023]
FIG. 9 is a schematic diagram of a fiber laser having a linear cavity that uses a graphene- ferroelectric hybrid saturable absorber device. WO 2013/184072 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
K. S. Novoselov, D. Jiang, F. Schedin, T. J. Booth, V. V. Khotkevich, S. V. Morozov, A. K. Geim, PNAS, 102, 30, 10451 (2005).
The saturable absorber device of Claim 1, wherein the doping level of the graphene-hybrid saturable absorber is dynamically modifiable via electrostatic gates to tune the resonant wavelength.
The saturable absorber device of Claim 1, wherein the ferroelectric material is a ferroelectric thin film.
The saturable absorber device of Claim 1, wherein the graphene substrate is patterned in a micro-shape structure, comprising a circular array, a micro-ribbon array, or a combination thereof.
The saturable absorber device of Claim 1, wherein the optical element comprises an optical fiber.
A method of forming [[a]] the saturable absorber device of Claim 1, comprising: a) providing an optical element; and b) supporting with the optical element a saturable absorber material comprising a ferroelectric material and a graphene substrate.
K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, L. V. Grigorieva, A. A. Firsov, Science, 306, 5696, 666, (2004).
Y. Zheng et al., App l. Phys. Lett. 94, 163505 (2009).
L. Ju, B. Geng, J. Ho rn g, C. Girit, M. Martin, Z. Hao, H. A. Bechtel, X Liang, A. Zett l, Y. R. Shen and F. Wang, Nature Nanotech, 6, 630, (2011).
H. X. Ji, L. L. Zhang, M. T. Pettes, H. F. Li, S. S. Chen, L. Shi, R. Piner, R. S. Ruoff, Nano Lett, 12, 5, 2446 (2012).
S. Bae, H. Kim, Y. Lee, X. Xu, J.-S. Park, Y. Zheng, J. Balakrishnan, T. Lei, SVG 14405671.12-04-2014.I₃HR₆VV₈PXXIFW4.SPEC3772146.15.617.1482.2141.1535.svg 0.177 5.08 Chemistry Black and white Hong, S. I ijima, Nature Nano, 5, 574, (2010).
U. S. Patent No. 6815008, K. Ichikawa, G. Nishino, N. Kaneko.
T. Kaura, R. Nath, M. M. Pe rl man, J. Phys. D: App l. Phys. 24, 1848, (1991). [0075] The teachings of all patents, published applications and references cited herein are incorporated by reference in their entirety. [0076] While this invention has been particularly shown and described with references to example embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims. Claims What is claimed is:
A fiber laser, comprising: a ring or linear laser cavity; and a saturated absorber device arranged within the laser cavity, the saturable device, comprising: an optical element, and a saturable absorber material supported by the optical element, the saturable absorber material, comprising ferroelectric material and a graphene substrate, wherein the graphene substrate is layered with the ferroelectric material to form a gate tunable graphene-ferroelectric hybrid saturable absorber.
The fiber laser of Claim 14, wherein the saturable absorber device is configured in the laser cavity so as to provide at least one of: wavelength tuning, mode- locking, Q-switching, optical pulse shaping, optical switching, and optical signal processing. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -5-
The fiber laser of Claim 14, wherein the ferroelectric material is 1) a polymer or copolymer comprising vinylidene fluoride, trifluoroethylene, 11- aminoundecanoic acid, thiourea, or a combination thereof; 2) a ceramic material comprising bismuth ferrite, barium titanate, lead titanate, sodium nitrite, potassium phosphate, or a combination thereof; 3) a hydrogen-bonded supramolecule polymer or copolymer comprising 5,5'- dimethyl-2,2'-bipyridine, 2,5-dichloro-3,6-dih ydrox y-p-benzo q uinone, 2,5-dibromo-3,6- dih ydrox y-p-benzo q uinone, 2,5-diiodo-3,6-dih ydrox y-p-benzo q uinone, or a combination thereof; or 4) an organic-inorganic compound comprising triglycine sulfate, H-1,4- diazabicyclo [2.2.2] octane ammonium perrhenate (H-dabcoReO 4), trisarcosine calcium chloride, or a combination thereof. 17.-19..
The fiber laser of Claim 14, wherein the optical element comprises an optical fiber optionally containing a mode lock assembly.
canceled
canceled
canceled
A method of fabricating the saturable absorber material, comprising: a) depositing a layer of graphene onto a substrate by template-directed chemical vapor deposition (C V D); b) depositing a layer of ferroelectric material onto the graphene; c) removing the substrate via wet chemical etching; and d) doping the material from step (c) by applying an electric field to thereby obtain the graphene-ferroelectric hybrid saturable absorber material. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -6-
The method of Claim 23, wherein step (b) through step (c) are performed using roll-to-roll technique.
The method of Claim 23, wherein step (d) is performed using corona poling technique to obtain the desired remnant polarization state of the ferroelectric material layer. 1735152.v 1
Layer stacks claimed or described, ordered top of device to substrate.
gate-tunable graphene-ferroelectric hybrid saturable absorber device
fiber laser with graphene-ferroelectric hybrid saturable absorber
Materials described outside the worked examples.
graphene
ferroelectric material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,184,553Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic illustration of working principle of graphene-based saturable absorber. WO 2013/184072 PCT/SG₂₀₁₃/000237 -4- [00 16]
FIG. 2 (a) is a schematic illustration of the roll-to-roll process of large area graphene from Cu foil substrate to PVDF substrate via a sacrificial polymer …
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 4 (a) is a schematic illustration of a stacked graphene-PVDF saturable absorber device.
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …
FIG. 6 is perspective, close-up end view of a saturable absorber device in the form of an optical fiber held within a ferrule, the fiber having an end facet that …
FIG. 7 is a perspective view of a saturable absorber device in the form of a fiber pigtail with a multilayer graphene film arranged on the fiber pigtail end. …
FIG. 8. is a schematic diagram of an example fiber laser having a ring cavity that uses a graphene-ferroelectric hybrid saturable absorber device. [0023]
FIG. 9 is a schematic diagram of a fiber laser having a linear cavity that uses a graphene- ferroelectric hybrid saturable absorber device. WO 2013/184072 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
K. S. Novoselov, D. Jiang, F. Schedin, T. J. Booth, V. V. Khotkevich, S. V. Morozov, A. K. Geim, PNAS, 102, 30, 10451 (2005).
The saturable absorber device of Claim 1, wherein the doping level of the graphene-hybrid saturable absorber is dynamically modifiable via electrostatic gates to tune the resonant wavelength.
The saturable absorber device of Claim 1, wherein the ferroelectric material is a ferroelectric thin film.
The saturable absorber device of Claim 1, wherein the graphene substrate is patterned in a micro-shape structure, comprising a circular array, a micro-ribbon array, or a combination thereof.
The saturable absorber device of Claim 1, wherein the optical element comprises an optical fiber.
A method of forming [[a]] the saturable absorber device of Claim 1, comprising: a) providing an optical element; and b) supporting with the optical element a saturable absorber material comprising a ferroelectric material and a graphene substrate.
K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, L. V. Grigorieva, A. A. Firsov, Science, 306, 5696, 666, (2004).
Y. Zheng et al., App l. Phys. Lett. 94, 163505 (2009).
L. Ju, B. Geng, J. Ho rn g, C. Girit, M. Martin, Z. Hao, H. A. Bechtel, X Liang, A. Zett l, Y. R. Shen and F. Wang, Nature Nanotech, 6, 630, (2011).
H. X. Ji, L. L. Zhang, M. T. Pettes, H. F. Li, S. S. Chen, L. Shi, R. Piner, R. S. Ruoff, Nano Lett, 12, 5, 2446 (2012).
S. Bae, H. Kim, Y. Lee, X. Xu, J.-S. Park, Y. Zheng, J. Balakrishnan, T. Lei, SVG 14405671.12-04-2014.I₃HR₆VV₈PXXIFW4.SPEC3772146.15.617.1482.2141.1535.svg 0.177 5.08 Chemistry Black and white Hong, S. I ijima, Nature Nano, 5, 574, (2010).
U. S. Patent No. 6815008, K. Ichikawa, G. Nishino, N. Kaneko.
T. Kaura, R. Nath, M. M. Pe rl man, J. Phys. D: App l. Phys. 24, 1848, (1991). [0075] The teachings of all patents, published applications and references cited herein are incorporated by reference in their entirety. [0076] While this invention has been particularly shown and described with references to example embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims. Claims What is claimed is:
A fiber laser, comprising: a ring or linear laser cavity; and a saturated absorber device arranged within the laser cavity, the saturable device, comprising: an optical element, and a saturable absorber material supported by the optical element, the saturable absorber material, comprising ferroelectric material and a graphene substrate, wherein the graphene substrate is layered with the ferroelectric material to form a gate tunable graphene-ferroelectric hybrid saturable absorber.
The fiber laser of Claim 14, wherein the saturable absorber device is configured in the laser cavity so as to provide at least one of: wavelength tuning, mode- locking, Q-switching, optical pulse shaping, optical switching, and optical signal processing. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -5-
The fiber laser of Claim 14, wherein the ferroelectric material is 1) a polymer or copolymer comprising vinylidene fluoride, trifluoroethylene, 11- aminoundecanoic acid, thiourea, or a combination thereof; 2) a ceramic material comprising bismuth ferrite, barium titanate, lead titanate, sodium nitrite, potassium phosphate, or a combination thereof; 3) a hydrogen-bonded supramolecule polymer or copolymer comprising 5,5'- dimethyl-2,2'-bipyridine, 2,5-dichloro-3,6-dih ydrox y-p-benzo q uinone, 2,5-dibromo-3,6- dih ydrox y-p-benzo q uinone, 2,5-diiodo-3,6-dih ydrox y-p-benzo q uinone, or a combination thereof; or 4) an organic-inorganic compound comprising triglycine sulfate, H-1,4- diazabicyclo [2.2.2] octane ammonium perrhenate (H-dabcoReO 4), trisarcosine calcium chloride, or a combination thereof. 17.-19..
The fiber laser of Claim 14, wherein the optical element comprises an optical fiber optionally containing a mode lock assembly.
canceled
canceled
canceled
A method of fabricating the saturable absorber material, comprising: a) depositing a layer of graphene onto a substrate by template-directed chemical vapor deposition (C V D); b) depositing a layer of ferroelectric material onto the graphene; c) removing the substrate via wet chemical etching; and d) doping the material from step (c) by applying an electric field to thereby obtain the graphene-ferroelectric hybrid saturable absorber material. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -6-
The method of Claim 23, wherein step (b) through step (c) are performed using roll-to-roll technique.
The method of Claim 23, wherein step (d) is performed using corona poling technique to obtain the desired remnant polarization state of the ferroelectric material layer. 1735152.v 1
Layer stacks claimed or described, ordered top of device to substrate.
gate-tunable graphene-ferroelectric hybrid saturable absorber device
fiber laser with graphene-ferroelectric hybrid saturable absorber
Materials described outside the worked examples.
graphene
ferroelectric material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,184,553Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic illustration of working principle of graphene-based saturable absorber. WO 2013/184072 PCT/SG₂₀₁₃/000237 -4- [00 16]
FIG. 2 (a) is a schematic illustration of the roll-to-roll process of large area graphene from Cu foil substrate to PVDF substrate via a sacrificial polymer …
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 4 (a) is a schematic illustration of a stacked graphene-PVDF saturable absorber device.
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …
FIG. 6 is perspective, close-up end view of a saturable absorber device in the form of an optical fiber held within a ferrule, the fiber having an end facet that …
FIG. 7 is a perspective view of a saturable absorber device in the form of a fiber pigtail with a multilayer graphene film arranged on the fiber pigtail end. …
FIG. 8. is a schematic diagram of an example fiber laser having a ring cavity that uses a graphene-ferroelectric hybrid saturable absorber device. [0023]
FIG. 9 is a schematic diagram of a fiber laser having a linear cavity that uses a graphene- ferroelectric hybrid saturable absorber device. WO 2013/184072 …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
K. S. Novoselov, D. Jiang, F. Schedin, T. J. Booth, V. V. Khotkevich, S. V. Morozov, A. K. Geim, PNAS, 102, 30, 10451 (2005).
The saturable absorber device of Claim 1, wherein the doping level of the graphene-hybrid saturable absorber is dynamically modifiable via electrostatic gates to tune the resonant wavelength.
The saturable absorber device of Claim 1, wherein the ferroelectric material is a ferroelectric thin film.
The saturable absorber device of Claim 1, wherein the graphene substrate is patterned in a micro-shape structure, comprising a circular array, a micro-ribbon array, or a combination thereof.
The saturable absorber device of Claim 1, wherein the optical element comprises an optical fiber.
A method of forming [[a]] the saturable absorber device of Claim 1, comprising: a) providing an optical element; and b) supporting with the optical element a saturable absorber material comprising a ferroelectric material and a graphene substrate.
K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, L. V. Grigorieva, A. A. Firsov, Science, 306, 5696, 666, (2004).
Y. Zheng et al., App l. Phys. Lett. 94, 163505 (2009).
L. Ju, B. Geng, J. Ho rn g, C. Girit, M. Martin, Z. Hao, H. A. Bechtel, X Liang, A. Zett l, Y. R. Shen and F. Wang, Nature Nanotech, 6, 630, (2011).
H. X. Ji, L. L. Zhang, M. T. Pettes, H. F. Li, S. S. Chen, L. Shi, R. Piner, R. S. Ruoff, Nano Lett, 12, 5, 2446 (2012).
S. Bae, H. Kim, Y. Lee, X. Xu, J.-S. Park, Y. Zheng, J. Balakrishnan, T. Lei, SVG 14405671.12-04-2014.I₃HR₆VV₈PXXIFW4.SPEC3772146.15.617.1482.2141.1535.svg 0.177 5.08 Chemistry Black and white Hong, S. I ijima, Nature Nano, 5, 574, (2010).
U. S. Patent No. 6815008, K. Ichikawa, G. Nishino, N. Kaneko.
T. Kaura, R. Nath, M. M. Pe rl man, J. Phys. D: App l. Phys. 24, 1848, (1991). [0075] The teachings of all patents, published applications and references cited herein are incorporated by reference in their entirety. [0076] While this invention has been particularly shown and described with references to example embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims. Claims What is claimed is:
A fiber laser, comprising: a ring or linear laser cavity; and a saturated absorber device arranged within the laser cavity, the saturable device, comprising: an optical element, and a saturable absorber material supported by the optical element, the saturable absorber material, comprising ferroelectric material and a graphene substrate, wherein the graphene substrate is layered with the ferroelectric material to form a gate tunable graphene-ferroelectric hybrid saturable absorber.
The fiber laser of Claim 14, wherein the saturable absorber device is configured in the laser cavity so as to provide at least one of: wavelength tuning, mode- locking, Q-switching, optical pulse shaping, optical switching, and optical signal processing. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -5-
The fiber laser of Claim 14, wherein the ferroelectric material is 1) a polymer or copolymer comprising vinylidene fluoride, trifluoroethylene, 11- aminoundecanoic acid, thiourea, or a combination thereof; 2) a ceramic material comprising bismuth ferrite, barium titanate, lead titanate, sodium nitrite, potassium phosphate, or a combination thereof; 3) a hydrogen-bonded supramolecule polymer or copolymer comprising 5,5'- dimethyl-2,2'-bipyridine, 2,5-dichloro-3,6-dih ydrox y-p-benzo q uinone, 2,5-dibromo-3,6- dih ydrox y-p-benzo q uinone, 2,5-diiodo-3,6-dih ydrox y-p-benzo q uinone, or a combination thereof; or 4) an organic-inorganic compound comprising triglycine sulfate, H-1,4- diazabicyclo [2.2.2] octane ammonium perrhenate (H-dabcoReO 4), trisarcosine calcium chloride, or a combination thereof. 17.-19..
The fiber laser of Claim 14, wherein the optical element comprises an optical fiber optionally containing a mode lock assembly.
canceled
canceled
canceled
A method of fabricating the saturable absorber material, comprising: a) depositing a layer of graphene onto a substrate by template-directed chemical vapor deposition (C V D); b) depositing a layer of ferroelectric material onto the graphene; c) removing the substrate via wet chemical etching; and d) doping the material from step (c) by applying an electric field to thereby obtain the graphene-ferroelectric hybrid saturable absorber material. 1735152.v 1 U.S. National Stage of PCT/SG₂₀₁₃/000237 -6-
The method of Claim 23, wherein step (b) through step (c) are performed using roll-to-roll technique.
The method of Claim 23, wherein step (d) is performed using corona poling technique to obtain the desired remnant polarization state of the ferroelectric material layer. 1735152.v 1
Layer stacks claimed or described, ordered top of device to substrate.
gate-tunable graphene-ferroelectric hybrid saturable absorber device
fiber laser with graphene-ferroelectric hybrid saturable absorber
Materials described outside the worked examples.
graphene
ferroelectric material
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
Related documents with shared materials, methods, properties, or citations.
poly(vinylidene fluoride-co-trifluoroethylene)
bismuth ferrite
BiFeO₃
barium titanate
BaTiO₃
lead titanate
PbTiO₃
triglycine sulfate
H-1,4-diazabicyclo[2.2.2]octane ammonium perrhenate (H-dabcoReO₄)
trisarcosine calcium chloride
graphene-ferroelectric hybrid saturable absorber
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …
poly(vinylidene fluoride-co-trifluoroethylene)
bismuth ferrite
BiFeO₃
barium titanate
BaTiO₃
lead titanate
PbTiO₃
triglycine sulfate
H-1,4-diazabicyclo[2.2.2]octane ammonium perrhenate (H-dabcoReO₄)
trisarcosine calcium chloride
graphene-ferroelectric hybrid saturable absorber
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …
poly(vinylidene fluoride-co-trifluoroethylene)
bismuth ferrite
BiFeO₃
barium titanate
BaTiO₃
lead titanate
PbTiO₃
triglycine sulfate
H-1,4-diazabicyclo[2.2.2]octane ammonium perrhenate (H-dabcoReO₄)
trisarcosine calcium chloride
graphene-ferroelectric hybrid saturable absorber
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …
poly(vinylidene fluoride-co-trifluoroethylene)
bismuth ferrite
BiFeO₃
barium titanate
BaTiO₃
lead titanate
PbTiO₃
triglycine sulfate
H-1,4-diazabicyclo[2.2.2]octane ammonium perrhenate (H-dabcoReO₄)
trisarcosine calcium chloride
graphene-ferroelectric hybrid saturable absorber
FIG. 3 (d) is a graph showing the normalized Transmittance for non-doped and doped graphene as a function of Input laser intensity. [0018]
FIG. 5 (c) is a graph showing the impact of changing the width of the graphene on the THz signal for the saturable absorber material plasmonic device …