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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 3 — Feb. 5, 2007
  • pp: 823–828

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

Guo-Wei Lu and Lian-Kuan Chen  »View Author Affiliations


Optics Express, Vol. 15, Issue 3, pp. 823-828 (2007)
http://dx.doi.org/10.1364/OE.15.000823


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Abstract

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).

© 2007 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(260.5430) Physical optics : Polarization

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 10, 2006
Revised Manuscript: January 22, 2007
Manuscript Accepted: January 22, 2007
Published: February 5, 2007

Citation
Guo-Wei Lu and Lian-Kuan Chen, "Enhancing the monitoring sensitivity of DOP-based OSNR monitors in high OSNR region using off-center narrow-band optical filtering," Opt. Express 15, 823-828 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-3-823


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References

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