We present a simple, yet effective OSNR monitoring technique based on an inherent effect in the optical modulator. Highly accurate OSNR monitoring is demonstrated in a 40 Gb/s dense WDM system with 50 GHz channel spacing.
Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007. Ofc/nfoec 2007, 2007
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2007 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference, 2007