Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27341
Title: Statistical analysis of optical signal-to-noise ratio monitoring using delay-tap sampling
Authors: Khan, FN
Lau, APT 
Li, Z
Lu, C 
Wai, PKA 
Keywords: Delay-tap sampling
Optical performance monitoring
Optical signal-to-noise ratio (OSNR) monitoring
Q-factor monitoring
Issue Date: 2010
Source: IEEE Photonics technology letters, 2010, v. 22, no. 3, 5342488, p. 149-151 How to cite?
Journal: IEEE Photonics Technology Letters 
Abstract: We derive analytical expressions for the optical signal-to-noise ratio (OSNR) monitoring using delay-tap sampling for intensity-modulated direct-detection (IM/DD) systems. We demonstrate through our theoretical analysis and experimental results that modeling of noise correlation due to low-pass filtering between delay-tap samples enables accurate monitoring of OSNR, without recalibration for each system setup. Effects of chromatic dispersion (CD) and polarization-mode dispersion on the proposed technique are investigated through numerical simulations. The monitoring error remains within 1 dB for CD up to 400 ps/nm and differential group delay up to 45 ps.
URI: http://hdl.handle.net/10397/27341
ISSN: 1041-1135
DOI: 10.1109/LPT.2009.2037130
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