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Fabrication and analyses of negative birefrigent thin film compensator with characteristic matrix
Multilayer Thin Film Compensator Viewing Angle
2011/12/1
We fabricated a multilayer negative-birefringent film as a phase compensator to minimize light leakage from twisted nematic liquid crystal displays in oblique incidence.The multilayer film stack is co...
Colorless Compact Tunable Optical Dispersion Compensator based Solely on Linear Translation
fiber optics communications dispersion compensation devices
2015/5/26
We propose and demonstrate a compact tunable optical dispersion compensator(TODC) with 100-GHz FSR. The TODC is based on longitudinal displacement of a WGR resulting in chromatic dispersion compensati...
Wide-Passband 88-Wavelength Channel-by-Channel Tunable Optical Dispersion Compensator with 50-GHz Spacing
Dispersion compensation devices Waveguides planar Gratings Spatial light modulators
2015/5/26
We realized a wide-passband multi-channel tunable optical dispersion compensator for 88 WDM signals with 50-GHz spacing by combination of an arrayed-waveguide and bulk gratings.It utilizes a novel opt...
160-Gb/s Polarization-Multiplexed 16-QAM long-haul transmission over 3,123 km using digital coherent receiver with digital PLL based frequency offset compensator
Fiber Optics Communications Coherent communications
2015/6/9
We demonstrate 160-Gb/s PDM 16-QAM single channel transmission over the longest distance yet to be reported, of 3123.9 km. The coherent receiver employs a frequency offset compensator based on a digit...
50-Wavelength Channel-by-Channel Tunable Optical Dispersion Compensator Using Combination of Arrayed-Waveguide and Bulk Gratings
Dispersion compensation devices Waveguides planar Gratings Spatial light modulators
2015/6/8
We propose a novel optical configuration for a channelized tunable optical dispersion compensator (TODC) with channel-by-channel operation across entire the L-band. The TODC consists of a cyclic frequ...
A Scheme for Improving the Performance of 100-Gb/s Polarization-Multiplexed RZ33 DQPSK Signals Using the Phase Regenerator and PMD compensator
Fiber optics communications Phase modulation Polarization
2015/6/4
We proposed a scheme of combination of phase regenerator and PMD compensator to the 100-Gbit/s Polarization-Multiplexed DQPSK System to improve its tolerance to PMD. The system performance is effectiv...
Novel Wide-range Frequency Offset Compensator Demonstrated with Real-time Digital Coherent Receiver
Wide-range Frequency Offset Compensator Demonstrated Real-time Digital Coherent Receiver
2015/7/30
A novel frequency offset estimator is proposed and implemented in a 1Gbit/s real-time coherent receiver to demonstrate all-digital frequency offset compensation up to ±0.4 symbol rate.
Novel Opto-Electrical Tunable Dispersion Compensator for IM Signals
Opto-Electrical Tunable Dispersion Compensator IM Signals
2015/7/17
A novel opto-electrical tunable dispersion compensator with a tuning time lower than 150 μs is proposed compensation is performed by tunable dispersion compensation is performed in the lightwave and ...
A Simple Digital Skew Compensator for Coherent Receiver
Simple Digital Skew Compensator Coherent Receiver
2015/7/16
A skew compensator is proposed and experimentally demonstrated for coherent front-end, which improved tolerance from ± 3 to ± 21ps at 0.2dB Q-penalty even with 21,000ps/nm CD and 90ps DGD on 112Gb/s...
Tunable Optical Dispersion Compensator Module Using Integrated Multiple Lenses in an Arrayed-Waveguide Grating
Tunable Optical Dispersion Compensator Module Integrated Multiple Lenses Arrayed-Waveguide Grating
2015/7/16
An AWG-based tunable dispersion compensator with integrated silicone lenses is fabricated. Its tuning range runs from +47 to +410 ps/nm and error-free dispersion compensation is confirmed for 42.7-Gbp...
40 λ WDM Channel-by-Channel and Flexible Dispersion Compensation at 40 Gb/s Using Multi-channel Tunable Optical Dispersion Compensator
WDM Channel-by-Channel Flexible Dispersion Compensation Multi-channel Tunable Optical Dispersion Compensator
2015/7/15
We successfully demonstrated channel-by-channel and flexible CD compensation of 40 λ WDM signals at 40 Gb/s in 40/80 km spans using passband widened AWG-LCOS-based multi-channel TODC combined with a ...
Tunable Optical Dispersion Compensator Using Integrated Lens-Shaped Phase Shifters in an Arrayed-Waveguide Grating
Optical Dispersion Compensator Integrated Lens-Shaped Phase Shifters Arrayed-Waveguide Grating
2015/8/4
The tunable optical dispersion compensator using integrated phase shifters in the AWG was fabricated. The tuning range was from 0 to +125 ps/nm with a bandwidth of 51 GHz.
Highly Stable 160-Gb/s Field Transmission Employing Adaptive PMD Compensator with Ultra High Time-Resolution Variable DGD Generator
Adaptive PMD Compensator Time-Resolution Variable DGD Generator
2015/8/3
We demonstrate highly stable field transmission of 160-Gb/s signal utilizing adaptive PMD compensator, which employing variable DGD generator with ultra high time-resolution of 0.053 fs.
Automatic Optical PMD Compensator for 40-Gb/s DBPSK and DQPSK with Fast Changing SOP and PSP
Automatic Optical PMD Compensator DBPSK DQPSK Changing SOP and PSP
2015/8/3
We demonstrate a fast-speed PMDC for 40Gb/s DBPSK and DQPSK. The PMDC increases tolerable average PMD of the DBPSK and DQPSK system to 9 ps and 18 ps,respectively.
Compactly Arranged 25-stage PLC Mach-Zehnder-Type Wide-Band Tunable Dispersion Compensator
Compactly Arranged PLC Mach-Zehnder-Type Wide-Band Tunable Dispersion Compensator
2015/7/30
We fabricated a compactly arranged 25-stage PLC MZI type tunable dispersion compensator with FSR=200GHz,and achieved +/-300ps/nm of dispersion and 60GHz of usable bandwidth with low polarization depen...