Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1535387 | Optics Communications | 2013 | 5 Pages |
Abstract
In this paper, phase-sensitive amplification (PSA) in a loop configuration for phase regeneration of quadrature phase-shift keying (QPSK) signals is proposed. Unlike the conventional PSA schemes in which the signal output phase is locked to one of two values (e.g., 0 or π), the proposed scheme outputs signal light with one of four phase values different by π/2, owing to the loop configuration with two pump lights. All-optical QPSK signal regeneration can be achieved by using this PSA scheme.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
K. Inoue, S. Okazaki,