Enhancing the monitoring sensitivity of DOP-based OSNR monitors in high OSNR region using off-center narrow-band optical filtering | Zendy

Guo-Wei Lu | Zendy; LianKuan Chen | Zendy

Open Access

Enhancing the monitoring sensitivity of DOP-based OSNR monitors in high OSNR region using off-center narrow-band optical filtering

Author(s) -

Guo-Wei Lu,

LianKuan Chen

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.000823

Subject(s) - optics , polarization mode dispersion , sensitivity (control systems) , amplified spontaneous emission , degree of polarization , dynamic range , optical filter , optical amplifier , polarization (electrochemistry) , physics , materials science , optoelectronics , optical fiber , electronic engineering , laser , scattering , chemistry , engineering

Recently, 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 (25~35dB/0.1nm).

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