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Conferences > ECEOC > 2012 > P3 > P3.15

Optically-filtered Laser Source Enabling Improved Phase Tracking in Coherent Transmission Systems

W. C. Ng, A. T. Nguyen, S. Ayotte, C. S. Park, and L. A. Rusch

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Abstract

We report phase tracking performance using an external cavity laser with and without optical filtering of high-frequency phase noise with an ultra-narrowband fiber Bragg grating. Phase tracking improvement is characterized when using a commercial, integrated coherent receiver. Noise suppression reduces tracking variance in a Wiener filter by 5 dB.

© 2012 Optical Society of America

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