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S. Namiki - One of the best experts on this subject based on the ideXlab platform.
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Parametric tunable Dispersion Compensator for dynamic optical networking
10th International Conference on Optical Communications and Networks (ICOCN 2011), 2020Co-Authors: K. Tanizawa, J. Kurumida, Takayuki Kurosu, S. NamikiAbstract:We introduce parametric tunable Dispersion Compensator that has advantages of wide grid-less operating bandwidth and fast tuning response. The intrinsic two features are attributed to its tuning scheme based on FWM process in highly-nonlinear fiber with a low Dispersion slope. (2 pages)
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Entire C-band operation of parametric tunable Dispersion Compensator using zero-Dispersion polarization-maintaining HNLF
2012 17th Opto-Electronics and Communications Conference, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, Shigehiko Takasaka, S. NamikiAbstract:We develop the first truly colorless parametric tunable Dispersion Compensator based on single FWM process in PM-HNLF that has flat zero-Dispersion profile within C+L band. Entire C-band operations are experimentally demonstrated for 43-Gbit/s RZ-DQPSK signals.
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in line polarization insensitive parametric tunable Dispersion Compensator for wdm signals
Journal of Lightwave Technology, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, S. NamikiAbstract:We develop frequency-preserving parametric tunable Dispersion Compensator (P-TDC) with polarization diversity for simultaneous Dispersion compensation of wavelength division multiplexing channels. The in-line polarization-insensitive P-TDC is composed of cascaded parametric tunable frequency converters based on degenerate four-wave mixing process in polarization-maintaining highly nonlinear fibers with a low Dispersion slope. Dispersion-managed error-free transmission of four channels of 43 Gb/s nonreturn-to-zero ON-OFF keying signal is successfully demonstrated over 126 km Dispersion-shifted fiber with the in-line polarization-insensitive P-TDC.
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Polarisation-insensitive parametric tunable Dispersion Compensator
Electronics Letters, 2011Co-Authors: K. Tanizawa, J. Kurumida, M. Takahashi, T. Yagi, S. NamikiAbstract:Polarisation-insensitive operations of a parametric tunable Dispersion Compensator based on a polarisation diversity scheme using a polarisation-maintaining highly nonlinear fibre are demonstrated. The polarisation-dependent power penalty is less than 0.5 dB for 43 Gbit/s non-return-to-zero on-off-keying signals with polarisation scrambling.
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Parametric tunable Dispersion Compensator for dynamic optical networking
10th International Conference on Optical Communications and Networks (ICOCN 2011), 2011Co-Authors: K. Tanizawa, J. Kurumida, Takayuki Kurosu, S. NamikiAbstract:We introduce parametric tunable Dispersion Compensator that has advantages of wide grid-less operating bandwidth and fast tuning response. The intrinsic two features are attributed to its tuning scheme based on FWM process in highly-nonlinear fiber with a low Dispersion slope.
K. Tanizawa - One of the best experts on this subject based on the ideXlab platform.
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Parametric tunable Dispersion Compensator for dynamic optical networking
10th International Conference on Optical Communications and Networks (ICOCN 2011), 2020Co-Authors: K. Tanizawa, J. Kurumida, Takayuki Kurosu, S. NamikiAbstract:We introduce parametric tunable Dispersion Compensator that has advantages of wide grid-less operating bandwidth and fast tuning response. The intrinsic two features are attributed to its tuning scheme based on FWM process in highly-nonlinear fiber with a low Dispersion slope. (2 pages)
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sub millisecond timing jitter free tuning of parametric Dispersion Compensator
Optics Express, 2013Co-Authors: K. Tanizawa, Yoichi Oikawa, Hiroyuki Matsuura, Toshimitsu Kaneko, Eiichi Banno, Katsumi Uesaka, Shigehiro Takasaka, Hidenori Iwai, Haruhiko Kuwatsuka, T. YagiAbstract:We demonstrate sub-millisecond tuning of a prototype parametric tunable Dispersion Compensator (P-TDC) based on cascaded polarization-diverse four-wave mixing (FWM) process with a fast tunable and highly wavelength-stable pump light source. The pump light source is developed using a tunable distributed amplification chirped sampled grating distributed reflector laser that is fully wavelength tunable by on-chip heaters with a 3-dB frequency response of 45 kHz, resulting in fast Dispersion tuning of less than 50 μs without additional timing jitter. The P-TDC is developed as the first prototype to satisfy essential requirements for practical network uses: stable input-polarization diversity, input-wavelength preservation, and seamless Dispersion tunability for entire C-band input wavelengths are simultaneously achieved.
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Entire C-band operation of parametric tunable Dispersion Compensator using zero-Dispersion polarization-maintaining HNLF
2012 17th Opto-Electronics and Communications Conference, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, Shigehiko Takasaka, S. NamikiAbstract:We develop the first truly colorless parametric tunable Dispersion Compensator based on single FWM process in PM-HNLF that has flat zero-Dispersion profile within C+L band. Entire C-band operations are experimentally demonstrated for 43-Gbit/s RZ-DQPSK signals.
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in line polarization insensitive parametric tunable Dispersion Compensator for wdm signals
Journal of Lightwave Technology, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, S. NamikiAbstract:We develop frequency-preserving parametric tunable Dispersion Compensator (P-TDC) with polarization diversity for simultaneous Dispersion compensation of wavelength division multiplexing channels. The in-line polarization-insensitive P-TDC is composed of cascaded parametric tunable frequency converters based on degenerate four-wave mixing process in polarization-maintaining highly nonlinear fibers with a low Dispersion slope. Dispersion-managed error-free transmission of four channels of 43 Gb/s nonreturn-to-zero ON-OFF keying signal is successfully demonstrated over 126 km Dispersion-shifted fiber with the in-line polarization-insensitive P-TDC.
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Polarisation-insensitive parametric tunable Dispersion Compensator
Electronics Letters, 2011Co-Authors: K. Tanizawa, J. Kurumida, M. Takahashi, T. Yagi, S. NamikiAbstract:Polarisation-insensitive operations of a parametric tunable Dispersion Compensator based on a polarisation diversity scheme using a polarisation-maintaining highly nonlinear fibre are demonstrated. The polarisation-dependent power penalty is less than 0.5 dB for 43 Gbit/s non-return-to-zero on-off-keying signals with polarisation scrambling.
T. Yagi - One of the best experts on this subject based on the ideXlab platform.
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sub millisecond timing jitter free tuning of parametric Dispersion Compensator
Optics Express, 2013Co-Authors: K. Tanizawa, Yoichi Oikawa, Hiroyuki Matsuura, Toshimitsu Kaneko, Eiichi Banno, Katsumi Uesaka, Shigehiro Takasaka, Hidenori Iwai, Haruhiko Kuwatsuka, T. YagiAbstract:We demonstrate sub-millisecond tuning of a prototype parametric tunable Dispersion Compensator (P-TDC) based on cascaded polarization-diverse four-wave mixing (FWM) process with a fast tunable and highly wavelength-stable pump light source. The pump light source is developed using a tunable distributed amplification chirped sampled grating distributed reflector laser that is fully wavelength tunable by on-chip heaters with a 3-dB frequency response of 45 kHz, resulting in fast Dispersion tuning of less than 50 μs without additional timing jitter. The P-TDC is developed as the first prototype to satisfy essential requirements for practical network uses: stable input-polarization diversity, input-wavelength preservation, and seamless Dispersion tunability for entire C-band input wavelengths are simultaneously achieved.
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Entire C-band operation of parametric tunable Dispersion Compensator using zero-Dispersion polarization-maintaining HNLF
2012 17th Opto-Electronics and Communications Conference, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, Shigehiko Takasaka, S. NamikiAbstract:We develop the first truly colorless parametric tunable Dispersion Compensator based on single FWM process in PM-HNLF that has flat zero-Dispersion profile within C+L band. Entire C-band operations are experimentally demonstrated for 43-Gbit/s RZ-DQPSK signals.
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in line polarization insensitive parametric tunable Dispersion Compensator for wdm signals
Journal of Lightwave Technology, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, S. NamikiAbstract:We develop frequency-preserving parametric tunable Dispersion Compensator (P-TDC) with polarization diversity for simultaneous Dispersion compensation of wavelength division multiplexing channels. The in-line polarization-insensitive P-TDC is composed of cascaded parametric tunable frequency converters based on degenerate four-wave mixing process in polarization-maintaining highly nonlinear fibers with a low Dispersion slope. Dispersion-managed error-free transmission of four channels of 43 Gb/s nonreturn-to-zero ON-OFF keying signal is successfully demonstrated over 126 km Dispersion-shifted fiber with the in-line polarization-insensitive P-TDC.
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Polarisation-insensitive parametric tunable Dispersion Compensator
Electronics Letters, 2011Co-Authors: K. Tanizawa, J. Kurumida, M. Takahashi, T. Yagi, S. NamikiAbstract:Polarisation-insensitive operations of a parametric tunable Dispersion Compensator based on a polarisation diversity scheme using a polarisation-maintaining highly nonlinear fibre are demonstrated. The polarisation-dependent power penalty is less than 0.5 dB for 43 Gbit/s non-return-to-zero on-off-keying signals with polarisation scrambling.
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Simultaneous Dispersion compensation of WDM channels using in-line parametric tunable Dispersion Compensator
2011 37th European Conference and Exhibition on Optical Communication, 2011Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, S. NamikiAbstract:We demonstrate wavelength-preserving parametric tunable Dispersion Compensator with cascaded polarization-insensitive parametric tunable wavelength conversion based on degenerate FWM in PM-HNLF. Simultaneous Dispersion compensation of four channels of 43-Gbit/s NRZ-OOK signal is successfully achieved.
J. Kurumida - One of the best experts on this subject based on the ideXlab platform.
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Parametric tunable Dispersion Compensator for dynamic optical networking
10th International Conference on Optical Communications and Networks (ICOCN 2011), 2020Co-Authors: K. Tanizawa, J. Kurumida, Takayuki Kurosu, S. NamikiAbstract:We introduce parametric tunable Dispersion Compensator that has advantages of wide grid-less operating bandwidth and fast tuning response. The intrinsic two features are attributed to its tuning scheme based on FWM process in highly-nonlinear fiber with a low Dispersion slope. (2 pages)
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Entire C-band operation of parametric tunable Dispersion Compensator using zero-Dispersion polarization-maintaining HNLF
2012 17th Opto-Electronics and Communications Conference, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, Shigehiko Takasaka, S. NamikiAbstract:We develop the first truly colorless parametric tunable Dispersion Compensator based on single FWM process in PM-HNLF that has flat zero-Dispersion profile within C+L band. Entire C-band operations are experimentally demonstrated for 43-Gbit/s RZ-DQPSK signals.
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in line polarization insensitive parametric tunable Dispersion Compensator for wdm signals
Journal of Lightwave Technology, 2012Co-Authors: K. Tanizawa, J. Kurumida, T. Yagi, Masanori Takahashi, S. NamikiAbstract:We develop frequency-preserving parametric tunable Dispersion Compensator (P-TDC) with polarization diversity for simultaneous Dispersion compensation of wavelength division multiplexing channels. The in-line polarization-insensitive P-TDC is composed of cascaded parametric tunable frequency converters based on degenerate four-wave mixing process in polarization-maintaining highly nonlinear fibers with a low Dispersion slope. Dispersion-managed error-free transmission of four channels of 43 Gb/s nonreturn-to-zero ON-OFF keying signal is successfully demonstrated over 126 km Dispersion-shifted fiber with the in-line polarization-insensitive P-TDC.
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Polarisation-insensitive parametric tunable Dispersion Compensator
Electronics Letters, 2011Co-Authors: K. Tanizawa, J. Kurumida, M. Takahashi, T. Yagi, S. NamikiAbstract:Polarisation-insensitive operations of a parametric tunable Dispersion Compensator based on a polarisation diversity scheme using a polarisation-maintaining highly nonlinear fibre are demonstrated. The polarisation-dependent power penalty is less than 0.5 dB for 43 Gbit/s non-return-to-zero on-off-keying signals with polarisation scrambling.
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Parametric tunable Dispersion Compensator for dynamic optical networking
10th International Conference on Optical Communications and Networks (ICOCN 2011), 2011Co-Authors: K. Tanizawa, J. Kurumida, Takayuki Kurosu, S. NamikiAbstract:We introduce parametric tunable Dispersion Compensator that has advantages of wide grid-less operating bandwidth and fast tuning response. The intrinsic two features are attributed to its tuning scheme based on FWM process in highly-nonlinear fiber with a low Dispersion slope.
S. Chandrasekhar - One of the best experts on this subject based on the ideXlab platform.
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Optical Dispersion Compensator suitable for use with non-wavelength-locked transmitters
Journal of Lightwave Technology, 2006Co-Authors: C.r. Doerr, S. Chandrasekhar, L.l. Buhl, M.a. Cappuzzo, E.y. Chen, A. Wong-foy, L.t. GomezAbstract:A compact and simple silica-waveguide 10-Gb/s tunable optical Dispersion Compensator (ODC) that works with uncontrolled wavelength transmitters by tracking the signal wavelength is demonstrated. Transmissions at 10.7 Gb/s over 5100 ps/nm of Dispersion with a duobinary signal using a single pass of the ODC and 3825 ps/nm of Dispersion with an unchirped non-return-to-zero signal using a double pass of the ODC are shown.
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Tunable Dispersion Compensator with integrated wavelength locking
OFC NFOEC Technical Digest. Optical Fiber Communication Conference 2005., 2005Co-Authors: C.r. Doerr, S. Chandrasekhar, L.l. Buhl, M.a. Cappuzzo, E.y. Chen, A. Wong-foy, L.t. GomezAbstract:We demonstrate a compact and simple silica-waveguide 10-Gb/s Dispersion Compensator that works with uncontrolled wavelength transmitters by tracking the signal wavelength. 10.7-Gb/s transmissions over 5100ps/nm with duobinary and 3825ps/nm with unchirped NRZ are shown.
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MEMS-based channelized Dispersion Compensator with flat passbands
Journal of Lightwave Technology, 2004Co-Authors: D.t. Neilson, F. Pardo, V.a. Aksyuk, M.-e. Simon, D.o. Lopez, D.m. Marom, S. ChandrasekharAbstract:This paper describes a continuously variable and independently addressable channelized Dispersion Compensator. The optical system is a free-space grating-based system used in a four-pass configuration to ensure flat passbands. The variable Dispersion is produced by an array of thermally adaptable curvature micromechanical mirrors. A per-channel variable Dispersion greater than +/-400 ps/nm has been demonstrated, with 58 GHz +/-0.4 dB flat passband on 85 GHz spacing. The group delay ripple is less than 7 ps and the penalty with 40 Gb/s CSRZ is 0.7 dB.
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Colorless tunable Dispersion Compensator with 400-ps/nm range integrated with a tunable noise filter
IEEE Photonics Technology Letters, 2003Co-Authors: C.r. Doerr, S. Chandrasekhar, L.w. Stulz, R. PafchekAbstract:We demonstrate a colorless thermooptic-lens-based tunable Dispersion Compensator integrated with a tunable optical noise filter. The free-spectral range is 200 GHz, the tuning range is /spl plusmn/200 ps/nm, the transmissivity 3-dB bandwidth is >40 GHz, and the linear group delay bandwidth is >48 GHz.
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Multichannel integrated tunable Dispersion Compensator employing a thermooptic lens
Optical Fiber Communication Conference and Exhibit, 2002Co-Authors: C.r. Doerr, S. Chandrasekhar, L.w. Stulz, L.l. BuhlAbstract:We present a new design for an integrated-optics tunable Dispersion Compensator which can use low index-step waveguides, has low loss, is colorless, and requires only one electrical drive signal. We also demonstrate the first silica thermooptic continuous lens.