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Dispersion compensation of wavelength-division multiplexed signals using waveband shift-free optical phase conjugators

Yasuhiro Okamura, Atsushi Takada
2021 IEICE Communications Express  

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Dispersion compensation performance of a waveband-shift-free optical phase conjugator (WBSF-OPC) on multi-span transmission of 20-Gbit/s quadrature phase-shift keying × 3-ch. WDM signals is numerically investigated. Provided that linear distortion owing to chromatic dispersion is considered, the middle channel of the WDM signals is perfectly compensated by WBSF-OPCs. Further, it is shown that the 3-channel WDM signals with a 2.2-THz optical frequency interval can be transmitted via a 640-km
more » ... smission fiber owing to the WBSF-OPCs, although their signal qualities degrade owing to residual dispersion.
doi:10.1587/comex.2021xbl0180 fatcat:yws6n3jnpbds3jyik65mlb76eq
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Yasuhiro Okamura, Atsushi Takada. "Dispersion compensation of wavelength-division multiplexed signals using waveband shift-free optical phase conjugators." IEICE Communications Express (2021)