Title :
Two-Photon-Absorption-Based OSNR Monitor for NRZ-PSK Transmission Systems
Author :
Reid, Douglas A. ; Bondarczuk, Krzysztof ; Dexter, Karl J. ; Shi, Kai ; Anandarajah, Prince M. ; Barry, Liam P. ; Guo, Wei-Hua ; O´Dowd, John ; Lynch, Michael ; Bradley, A. Louise ; Donegan, John F.
Author_Institution :
Res. Inst. for Networks & Commun. Eng., Dublin City Univ., Dublin, Ireland
fDate :
3/1/2010 12:00:00 AM
Abstract :
A two-photon absorption microcavity-based technique for monitoring in-band optical signal-to-noise ratio (OSNR) in nonreturn-to-zero phase-shift-keying systems is presented. Experiments using a 10-Gb/s differential phase-shift-keying system showed that accurate measurements (??1 dB) were possible for OSNRs in excess of 20 dB.
Keywords :
differential phase shift keying; light absorption; two-photon processes; NRZ-PSK transmission systems; bit rate 10 Gbit/s; differential phase-shift-keying system; nonreturn-to-zero phase-shift-keying systems; optical signal-to-noise ratio monitoring; two-photon-absorption-based OSNR monitor; Optical performance monitoring; optical signal-to-noise ratio (OSNR) measurement; phase-shift keying (PSK); two-photon absorption (TPA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2038718
