TY - JOUR
T1 - SOA-based regenerative amplification of phase-noise-degraded DPSK signals
T2 - Dynamic analysis and demonstration
AU - Grigoryan, Vladimir S.
AU - Shin, Myunghun
AU - Devgan, Preetpaul
AU - Lasri, Jacob
AU - Kumar, Prem
N1 - Funding Information:
Manuscript received July 1, 2005; revised October 21, 2005. This work was supported in part by the U.S. National Science Foundation under Grants ECS-0401251 and ANI-0123495. The work of M. Shin was supported by the Postdoctoral Fellowship Program of the Korea Research Foundation.
PY - 2006/1
Y1 - 2006/1
N2 - A theoretical analysis and an experimental demonstration of semiconductor optical amplifier (SOA)-based regenerative amplification (SORA) of phase noise (PN)-degraded return-to-zero (RZ) differential phase-shift keying (DPSK) signals are presented. The Q-factor improvement is 1.6 dB in single-channel and about 0.8 dB in two non-demultiplexed-channel regimes. The key physical mechanism that enables regeneration by the SORA is the discriminative gain provided by the SOA for the logical Os versus the logical Is when two mutually antisymmetric ON-OFF keying (OOK) data trains, created by the DPSK signal, collide in the SOA. The modeling results agree with the experiment.
AB - A theoretical analysis and an experimental demonstration of semiconductor optical amplifier (SOA)-based regenerative amplification (SORA) of phase noise (PN)-degraded return-to-zero (RZ) differential phase-shift keying (DPSK) signals are presented. The Q-factor improvement is 1.6 dB in single-channel and about 0.8 dB in two non-demultiplexed-channel regimes. The key physical mechanism that enables regeneration by the SORA is the discriminative gain provided by the SOA for the logical Os versus the logical Is when two mutually antisymmetric ON-OFF keying (OOK) data trains, created by the DPSK signal, collide in the SOA. The modeling results agree with the experiment.
KW - Differential phase-shift keying
KW - Nonlinear filters
KW - Optical communication equipment
KW - Semiconductor optical amplifiers
KW - Signal restoration
UR - http://www.scopus.com/inward/record.url?scp=33845619745&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845619745&partnerID=8YFLogxK
U2 - 10.1109/JLT.2005.861134
DO - 10.1109/JLT.2005.861134
M3 - Article
AN - SCOPUS:33845619745
SN - 0733-8724
VL - 24
SP - 135
EP - 141
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 1
ER -