Amplitude Noise Suppression of BPSK Signals Using Transmission Optical Fibers and Optical Parametric Phase-Sensitive Amplifiers

Akira Tanaka; Yasuhiro Okamura; Atsushi Takada

doi:10.1587/elex.19.20220196

This article has now been updated. Please use the final version.

Amplitude Noise Suppression of BPSK Signals Using Transmission Optical Fibers and Optical Parametric Phase-Sensitive Amplifiers

Akira Tanaka, Yasuhiro Okamura, Atsushi Takada

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Keywords: Phase-sensitive optical amplifier, Optical Kerr effect, Self-phase-modulation, Amplitude noise suppression

JOURNAL FREE ACCESS Advance online publication

Article ID: 19.20220196

DOI https://doi.org/10.1587/elex.19.20220196

The final version of this article is now available: Vol. 19 (2022), No. 13 pp. 20220196-20220196

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Abstract

In this letter, we numerically investigate noise suppression using self-phase-modulation (SPM) in transmission optical fiber and degenerate phase-sensitive optical amplifier (PSA). It is clarified that the optimum fiber input signal power for SPM and phase shift for amplitude noise suppression of 10 Gbit/s binary-phase-shift keyed (BPSK) signals. Then, 10-Gbit/s BPSK signal transmission on multi-relay systems is evaluated. When the fiber input optical power is 5 mW, the signal-to-noise ratio (SNR) of PSA output is larger than 20 dB on 200-relays while SNR of the conventional PSA output is 15 dB after 63-relays.

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