Dispersion and Nonlinearity Distortion Compensation of the QPSK/16QAM Signals Using Optical Phase Conjugation in Nonlinear SOAs

• Published in: IEEE photonics journal Vol. 12; no. 1; pp. 1 - 7
• Main Authors: Sobhanan, Aneesh, Venkatasubramani, Lakshmi Narayanan, Koilpillai, R. David, Venkitesh, Deepa
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01-02-2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: C band; Compensation; Conjugation; Digital signal processing; Dispersion; Nonlinear optics; Nonlinearity; Optical communication; Optical distortion; Optical fibers; Optical noise; Optical phase conjugation; Optical receivers; Optical signal processing; Phase conjugation; semiconductor optical amplifier; Semiconductor optical amplifiers
• ISSN: 1943-0655; 1943-0655; 1943-0647
• DOI: 10.1109/JPHOT.2020.2964414

We experimentally demonstrate the simultaneous compensation of both dispersion and nonlinear effects in a 100 km optical fiber link using optical phase conjugation of a 21 GB aud QPSK and 16QAM signal with nonlinear SOAs. Error-free performance is recorded for a launched power of up to 12 dBm, without any digital signal processing to compensate for distortions due to chromatic dispersion and nonlinear effects in fiber. The performance is verified for operation across the C-band.