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Conferences > ACP > 2011 > MDTIII > 830920

Coherent Phase Modulation Detection for Self-Heterodyne Phase Noise Measurement

Tam N. Huynh, Lim Nguyen, Kai Shi, and Liam P. Barry

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Abstract

We present coherent phase modulation detection for laser phase noise measurement via a self-heterodyne technique. Measurements have been performed for DFB and SGDBR lasers to demonstrate the technique. The results show that DFB laser phase noise is well described by the random-walk phase fluctuation while SGDBR has additional frequency fluctuation due to 1/f noise below 100 MHz that significantly broadens the linewidth.

© 2011 Optical Society of America

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