Title :
Receiver sensitivity improvement for NRZ-OOK signal by optical parametric amplifier-assisted detection
Author :
Liang, Yu ; Chui, P.C. ; Wong, Kenneth K Y
Author_Institution :
Photonic Systems Research Laboratory, Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong
Abstract :
By using a fiber optical parametric amplifier, we demonstrate a novel pre-amplification scheme to improve receiver sensitivity for 10-Gb/s non-return-to-zero on-off keying (NRZ-OOK) format with dual-end superposition of signal and idler in the optical parametric amplifier (OPA). We achieve receiver sensitivity of −40.5 dBm at BER = 10−9. Compared to its single-end counterpart, the receiver sensitivity can be improved by 2 dB.
Keywords :
Bit error rate; Nonlinear optics; Optical amplifiers; Optical detectors; Optical fiber amplifiers; Optical fibers; Optical receivers; Optical sensors; Semiconductor optical amplifiers; Stimulated emission; Optical parametric amplifier; preamplifier; receiver sensitivity;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
