The Experts below are selected from a list of 343986 Experts worldwide ranked by ideXlab platform
K Kikuchi - One of the best experts on this subject based on the ideXlab platform.
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subpicosecond pulse transmission over 144 km using midway Optical Phase conjugation via a cascaded second order process in a linbo 3 waveguide
IEEE Photonics Technology Letters, 2000Co-Authors: D Kunimatsu, Mark D. Pelusi, C Q Xu, K Kikuchi, X. Wang, A SuzukiAbstract:We demonstrate for the first time the feasibility of 600-fs pulse transmission over 144 km using midway Optical Phase conjugation via a cascaded second-order process in a periodically poled LiNbO/sub 3/ waveguide. The output pulses are negligibly distorted and broadened to 680 fs. This result could not be obtained without complete compensation for fourth-order dispersion performed by midway Optical Phase conjugation.
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novel configuration for polarization independent wavelength shift free Optical Phase conjugator using a nonlinear fiber sagnac interferometer
Conference on Lasers and Electro-Optics, 1999Co-Authors: F Futami, K KikuchiAbstract:Summary form only given. We propose and experiment with a novel configuration, which we believe is much simpler than the Optical parametric loop mirror (PALM) configuration, for wavelength-shift-free Optical Phase conjugation. We show the configuration of the Optical Phase conjugator we propose. It consists of a nonlinear fiber Sagnac interferometer (NFSI), a 3-dB coupler, a circulator, and an Optical band-pass filter.
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polarization independent wavelength shift free Optical Phase conjugator using a nonlinear fiber sagnac interferometer
IEEE Photonics Technology Letters, 1999Co-Authors: F Futami, K KikuchiAbstract:We propose and experiment with a novel configuration of a wavelength-shift-free Optical Phase conjugator using a nonlinear fiber Sagnac interferometer. In the proposed configuration, two orthogonally polarized pump waves are fed into different ports of the Sagnac interferometer, and we can achieve polarization-independent as well as wavelength-shift-free operation.
Jianping Chen - One of the best experts on this subject based on the ideXlab platform.
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all Optical Phase shifter and switch near 1550nm using tungsten disulfide ws2 deposited tapered fiber
Optics Express, 2017Co-Authors: Kan Wu, Hao Wang, Xiaoyan Zhang, Jun Wang, Jianping ChenAbstract:All-Optical Phase shifters and switches play an important role for various all-Optical applications including all-Optical signal processing, sensing and communication. In this paper, we demonstrate a fiber all-Optical Phase shifter using few-layer 2D material tungsten disulfide (WS2) deposited on a tapered fiber. WS2 absorbs injected 980 nm pump (control light) and generates heat, which changes the refractive index of both WS2 and tapered fiber due to thermo-optic effect and achieves a maximum Phase shift of 6.1π near 1550 nm. The device has a loss of 3.7 dB. By constructing a Mach-Zehnder interferometer with WS2 based Phase shifter in one arm, an all-Optical switch is also obtained with an extinction ratio of 15 dB and a rise time of 7.3 ms. This all fiber low-cost and compact Optical Phase shifter and switch demonstrates the potential of 2D transition metal dichalcogenides for all-Optical signal processing devices.
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all Optical Phase shifter and switch near 1550nm using tungsten disulfide ws 2 deposited tapered fiber
Optics Express, 2017Co-Authors: Chaoshi Guo, Hao Wang, Xiaoyan Zhang, Jun Wang, Jianping ChenAbstract:All-Optical Phase shifters and switches play an important role for various all-Optical applications including all-Optical signal processing, sensing and communication. In this paper, we demonstrate a fiber all-Optical Phase shifter using few-layer 2D material tungsten disulfide (WS2) deposited on a tapered fiber. WS2 absorbs injected 980 nm pump (control light) and generates heat, which changes the refractive index of both WS2 and tapered fiber due to thermo-optic effect and achieves a maximum Phase shift of 6.1π near 1550 nm. The device has a loss of 3.7 dB. By constructing a Mach-Zehnder interferometer with WS2 based Phase shifter in one arm, an all-Optical switch is also obtained with an extinction ratio of 15 dB and a rise time of 7.3 ms. This all fiber low-cost and compact Optical Phase shifter and switch demonstrates the potential of 2D transition metal dichalcogenides for all-Optical signal processing devices.
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an all Optical Phase shifter and switch near 1550nm using tungsten disulfide ws2 deposited tapered fiber
arXiv: Optics, 2016Co-Authors: Chaoshi Guo, Hao Wang, Xiaoyan Zhang, Jun Wang, Jianping ChenAbstract:Optical Phase shifters and switches play an important role for various Optical applications including Optical signal processing, sensing and communication. In this paper, we demonstrate a fiber all Optical Phase shifter using few-layer 2D material tungsten disulfide (WS2) deposited on a tapered fiber. WS2 absorbs injected 980 nm pump (control light) and generates heat which changes the refractive index of the tapered fiber due to thermo-optic effect and achieves a maximum Phase shift of 6.1{\pi} near 1550 nm. The device has a loss of 3.7 dB. By constructing a Mach-Zehnder interferometer with WS2 based Phase shifter in one arm, an all Optical switch is also obtained with an extinction ratio of 15 dB and a rise time of 7.3 ms. This all fiber low-cost and compact Optical Phase shifter and switch demonstrates the potential of 2D transition metal dichalcogenides for all Optical signal processing devices.
F Futami - One of the best experts on this subject based on the ideXlab platform.
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novel configuration for polarization independent wavelength shift free Optical Phase conjugator using a nonlinear fiber sagnac interferometer
Conference on Lasers and Electro-Optics, 1999Co-Authors: F Futami, K KikuchiAbstract:Summary form only given. We propose and experiment with a novel configuration, which we believe is much simpler than the Optical parametric loop mirror (PALM) configuration, for wavelength-shift-free Optical Phase conjugation. We show the configuration of the Optical Phase conjugator we propose. It consists of a nonlinear fiber Sagnac interferometer (NFSI), a 3-dB coupler, a circulator, and an Optical band-pass filter.
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polarization independent wavelength shift free Optical Phase conjugator using a nonlinear fiber sagnac interferometer
IEEE Photonics Technology Letters, 1999Co-Authors: F Futami, K KikuchiAbstract:We propose and experiment with a novel configuration of a wavelength-shift-free Optical Phase conjugator using a nonlinear fiber Sagnac interferometer. In the proposed configuration, two orthogonally polarized pump waves are fed into different ports of the Sagnac interferometer, and we can achieve polarization-independent as well as wavelength-shift-free operation.
Taiichiro Chikama - One of the best experts on this subject based on the ideXlab platform.
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generation of Optical Phase conjugate waves and compensation for pulse shape distortion in a single mode fiber
Journal of Lightwave Technology, 1994Co-Authors: Shigeki Watanabe, George Ishikawa, T Naito, Taiichiro ChikamaAbstract:The generation of Optical Phase-conjugate waves and the application of Optical Phase conjugation (OPC) to Optical communication systems is described. The method of pulse shape distortion compensation by OPC is outlined including distortion due to both fiber dispersion and the Optical Kerr effect. The generation of a forward-going Phase-conjugate wave in a third-order nonlinear medium is discussed and that by a nondegenerate forward four-wave mixing in a zero-dispersion single-mode fiber (SMF) is investigated. Suppressing the stimulated Brillouin scattering (SBS) of a pump wave in the fiber prevents saturation of the generation efficiency of the Phase-conjugate wave even when the pump power exceeds the SBS threshold. In transmission experiments through a 200-km standard SMF with a 16-Gb/s intensity-modulated signal and a 5-Gb/s continuous-Phase FSK (CPFSK) modulated signal, it is shown the applicability of OPC is modulation independent and that OPC effectively compensates for both chromatic dispersion and the Optical Kerr effect. >
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cancellation of four wave mixing in multichannel fibre transmission by midway Optical Phase conjugation
Electronics Letters, 1994Co-Authors: S. Watanabe, Taiichiro ChikamaAbstract:The cancellation of waves generated by four-wave mixing (FWM) in multichannel Optical fibre transmission is demonstrated using midway Optical Phase conjugation. An FWM reduction ratio of -10.6 dB is achieved in an experimental three-channel transmission experiment along a 40 km dispersion-shifted fibre.
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compensation of pulse shape distortion due to chromatic dispersion and kerr effect by Optical Phase conjugation
IEEE Photonics Technology Letters, 1993Co-Authors: Shigeki Watanabe, Taiichiro Chikama, George Ishikawa, T Terahara, Hideo KuwaharaAbstract:Pulse shape distortion due to chromatic dispersion and self-Phase modulation in a single-mode fiber was effectively compensated for by using an Optical Phase-conjugate wave generated by nondegenerate forward four-wave mixing in a zero-dispersion single-mode fiber. Using Optical Phase conjugation at the midpoint of a 100-km standard single-mode fiber compensates for the distortion of 10-Gb/s intensity-modulated NRZ pulse at an input power level exceeding +10 dBm with a resultant power penalty of less than 1.2 dB. >
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compensation of chromatic dispersion in a single mode fiber by Optical Phase conjugation
IEEE Photonics Technology Letters, 1993Co-Authors: Shigeki Watanabe, T Naito, Taiichiro ChikamaAbstract:The effective compensation of waveform distortion due to chromatic dispersion in a single-mode fiber was demonstrated using an Optical Phase-conjugate wave generated by nondegenerate forward four-wave mixing in a zero-dispersion single-mode fiber. After transmission of 5- and 6-Gb/s continuous-Phase FSK (CPFSK) signal through a dispersive single-mode fiber, distortion compensation was confirmed by measuring bit error rate characteristics and observing heterodyne-detected eye-patterns. >
Xiaoyan Zhang - One of the best experts on this subject based on the ideXlab platform.
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all Optical Phase shifter and switch near 1550nm using tungsten disulfide ws2 deposited tapered fiber
Optics Express, 2017Co-Authors: Kan Wu, Hao Wang, Xiaoyan Zhang, Jun Wang, Jianping ChenAbstract:All-Optical Phase shifters and switches play an important role for various all-Optical applications including all-Optical signal processing, sensing and communication. In this paper, we demonstrate a fiber all-Optical Phase shifter using few-layer 2D material tungsten disulfide (WS2) deposited on a tapered fiber. WS2 absorbs injected 980 nm pump (control light) and generates heat, which changes the refractive index of both WS2 and tapered fiber due to thermo-optic effect and achieves a maximum Phase shift of 6.1π near 1550 nm. The device has a loss of 3.7 dB. By constructing a Mach-Zehnder interferometer with WS2 based Phase shifter in one arm, an all-Optical switch is also obtained with an extinction ratio of 15 dB and a rise time of 7.3 ms. This all fiber low-cost and compact Optical Phase shifter and switch demonstrates the potential of 2D transition metal dichalcogenides for all-Optical signal processing devices.
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all Optical Phase shifter and switch near 1550nm using tungsten disulfide ws 2 deposited tapered fiber
Optics Express, 2017Co-Authors: Chaoshi Guo, Hao Wang, Xiaoyan Zhang, Jun Wang, Jianping ChenAbstract:All-Optical Phase shifters and switches play an important role for various all-Optical applications including all-Optical signal processing, sensing and communication. In this paper, we demonstrate a fiber all-Optical Phase shifter using few-layer 2D material tungsten disulfide (WS2) deposited on a tapered fiber. WS2 absorbs injected 980 nm pump (control light) and generates heat, which changes the refractive index of both WS2 and tapered fiber due to thermo-optic effect and achieves a maximum Phase shift of 6.1π near 1550 nm. The device has a loss of 3.7 dB. By constructing a Mach-Zehnder interferometer with WS2 based Phase shifter in one arm, an all-Optical switch is also obtained with an extinction ratio of 15 dB and a rise time of 7.3 ms. This all fiber low-cost and compact Optical Phase shifter and switch demonstrates the potential of 2D transition metal dichalcogenides for all-Optical signal processing devices.
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an all Optical Phase shifter and switch near 1550nm using tungsten disulfide ws2 deposited tapered fiber
arXiv: Optics, 2016Co-Authors: Chaoshi Guo, Hao Wang, Xiaoyan Zhang, Jun Wang, Jianping ChenAbstract:Optical Phase shifters and switches play an important role for various Optical applications including Optical signal processing, sensing and communication. In this paper, we demonstrate a fiber all Optical Phase shifter using few-layer 2D material tungsten disulfide (WS2) deposited on a tapered fiber. WS2 absorbs injected 980 nm pump (control light) and generates heat which changes the refractive index of the tapered fiber due to thermo-optic effect and achieves a maximum Phase shift of 6.1{\pi} near 1550 nm. The device has a loss of 3.7 dB. By constructing a Mach-Zehnder interferometer with WS2 based Phase shifter in one arm, an all Optical switch is also obtained with an extinction ratio of 15 dB and a rise time of 7.3 ms. This all fiber low-cost and compact Optical Phase shifter and switch demonstrates the potential of 2D transition metal dichalcogenides for all Optical signal processing devices.
