Title

Demonstration of phase-regeneration of DPSK signals based on phase-sensitive amplification

Authors

Authors

K. Croussore; I. Kim; Y. Han; C. Kim; G. F. Li;S. Radic

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

NOISE; COMPENSATION; TRANSMISSION; PERFORMANCE; DISPERSION; AMPLIFIER; SYSTEMS; Optics

Abstract

Amplification and simultaneous phase regeneration of DPSK signals is demonstrated using a phase- sensitive amplifier. Phase- sensitive gain is achieved in a Sagnac fiber interferometer comprised of non-polarization maintaining, highly nonlinear fiber operating in the un- depleted pump regime. Both the pump and signal are RZ- DPSK pulse trains. The amplifier is capable of producing greater than 13 dB of phase- sensitive gain for an average pumping power of 100 mW, and easily reduces the BER of the regenerated DPSK signal by two orders of magnitude compared to the un- regenerated signal, corresponding to a negative power penalty of 2 dB. Careful optimization of the regenerator reveals much stronger BER improvement. (C) 2005 Optical Society of America.

Journal Title

Optics Express

Volume

13

Issue/Number

11

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

3945

Last Page

3950

WOS Identifier

WOS:000229534500005

ISSN

1094-4087

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