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Conferences > CLEO_SI > 2014 > STh4G > STh4G.1

Active Frequency-Noise Reduction of a Mid-IR Quantum Cascade Laser without Optical Frequency Reference

Lionel Tombez, Stéphane Schilt, and Thomas Südmeyer

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Abstract

Frequency-noise reduction of a 4.55-μm distributed-feedback quantum cascade laser is demonstrated using the voltage fluctuations across its junction as an error signal only. A 10-fold reduction of the frequency-noise power spectral density is achieved.

© 2014 Optical Society of America

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