Enhancing the monitoring sensitivity of DOP-based OSNR monitors in high OSNR region using off-center narrow-band optical filtering
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AbstractRecently, OSNR monitoring based on the measurement of degree of polarization (DOP) has attracted much attention, thanks to its simplicity and high efficiency. However, the OSNR monitoring sensitivity is quite poor in the high OSNR region, resulting in high estimation error and narrow dynamic range. In this paper, we propose and experimentally demonstrate a narrow-band off-center optical filtering technique for DOP-based OSNR monitors. In 40-Gb/s RZ-OOK systems, OSNR monitoring sensitivity and DOP dynamic range are successfully enhanced to 3.14%/dB and 31.4%, respectively, in the high OSNR region (25 similar to 35dB/0.1nm). (c) 2007 Optical Society of America.
All Author(s) ListLu GW, Chen LK
Journal nameOptics Express
Year2007
Month2
Day5
Volume Number15
Issue Number3
PublisherOPTICAL SOC AMER
Pages823 - 828
ISSN1094-4087
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesOptics; OPTICS

Last updated on 2020-31-07 at 23:18