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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 4 — Feb. 15, 2010
  • pp: 3618–3625

In-band OSNR monitoring using a pair of Michelson fiber interferometers

E. Flood, W. H. Guo, D. Reid, M. Lynch, A. L. Bradley, L. P. Barry, and J. F. Donegan  »View Author Affiliations


Optics Express, Vol. 18, Issue 4, pp. 3618-3625 (2010)
http://dx.doi.org/10.1364/OE.18.003618


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Abstract

Two polarization-independent Michelson fiber interferometers with different optical delays were used to measure the in-band OSNR of an optical signal from 5 to 30dB within an accuracy of 0.5dB. Using an expansion of the amplitude autocorrelation function of the signal around zero delay, it was possible to perform measurements without any prior knowledge of the signal. The system is shown to be immune to the effects of modulation frequency (up to 10G), partially and fully polarized noise, chromatic dispersion and poorly biased modulators.

© 2010 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 15, 2009
Revised Manuscript: January 27, 2010
Manuscript Accepted: January 29, 2010
Published: February 4, 2010

Citation
E. Flood, W. H. Guo, D. Reid, M. Lynch, A. L. Bradley, L. P. Barry, and J. F. Donegan, "In-band OSNR monitoring using a pair of Michelson fiber interferometers," Opt. Express 18, 3618-3625 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-4-3618


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References

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