Raman-assisted phase sensitive amplifier using a fiber Bragg grating-based tunable phase shifter

Yinwen Cao, Haoqian Song, Youichi Akasaka, Peicheng Liao, Ahmed Almaiman, Fatemeh Alishahi, Ahmad Fallahpour, Changjing Bao, Amirhossein Mohajerin-Ariaei, Tadashi Ikeuchi, Dmitry Starodubov, Joseph Touch, Moshe Tur, Alan E. Willner

Research output: Contribution to journalArticlepeer-review

Abstract

A low-loss Raman-assisted phase sensitive amplifier (PSA) with a ∼20 dB signal net gain is experimentally demonstrated. The amplitude and phase adjustment for PSA are achieved by using non-uniform Raman gain and a tunable fiber Bragg grating (FBG), respectively. The total component loss of the system is measured to be ∼8 dB. By tuning the FBG central wavelength, (1) an up to 5.6 dB signal gain improvement is obtained; and (2) a ∼4 dB receiver sensitivity enhancement is observed for 20 and 25 Gbaud quadrature phase shift keying signals and a 10 Gbaud 16-quadrature amplitude modulation signal.

Original languageEnglish
Pages (from-to)3949-3952
Number of pages4
JournalOptics Letters
Volume43
Issue number16
DOIs
StatePublished - 15 Aug 2018

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