Multiple-channel OSNR monitoring using integrated planar lightwave circuit and fast fourier transform techniques

X Lin,L Yan

doi:10.1109/leos.2003.1253018

Multiple-channel OSNR monitoring using integrated planar lightwave circuit and fast fourier transform techniques

X Lin, L Yan

https://doi.org/10.1109/leos.2003.1253018

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Publication Date: Oct 27, 2003

Citations: 1

Affiliation: University of Maryland, Baltimore County

#Optical Signal To Noise Ratio #Optical Signal To Noise Ratio Monitoring + Show 8 more

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Abstract

In this paper, we propose multiple-channel OSNR monitoring using integrated planar lightwave circuit (PLC) and fast Fourier transform (FFT) techniques with a single detector. We experimentally demonstrated a 4-channel OSNR monitoring and accurately measured OSNR up to 20 dB. Optical signal to noise ratio (OSNR) monitoring is one of the essential optical performance monitoring functions in wavelength-division-multiplexing (WDM) systems. Different OSNR monitoring methods have been reported. The arrayed-waveguide grating (AWG) with a detector array has been widely used to monitor OSNR of WDM channels.

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