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Proceedings Paper

Frequency stabilization of distributed-feedback laser by time measurement
Author(s): Hao Liu; Rong Shu; Jun Wu; Ye Ge; Long Zheng; Yihua Hu
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Paper Abstract

We present a novel method of stabilizing a distributed-feedback laser. It’s the first time to our knowledge that the timemeasurement technique is used in laser frequency stabilization. We obtain the laser frequency deviation information from the Fabry-Perot interferometer based on the pulse delay time. In contrast to traditional approaches, the laser can be stabilized in the quasi-continuous spectrum that the interferometer covering. Our method can obtain the error signal from a high signal to noise ratio (SNR) of the voltage signal and not limited by the frequency references. It also avoids many traditional problems, such as power insensitive, modulation, low-level signal, and finite frequency references. A relative frequency fluctuation less than 0.1 MHz is achieved and the root of an Allan variance is about 10-11 for an average time of 10 s.

Paper Details

Date Published: 3 December 2014
PDF: 5 pages
Proc. SPIE 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, 929707 (3 December 2014); doi: 10.1117/12.2069563
Show Author Affiliations
Hao Liu, Shanghai Institute of Technical Physics (China)
Rong Shu, Shanghai Institute of Technical Physics (China)
Jun Wu, Shanghai Institute of Technical Physics (China)
Ye Ge, Shanghai Institute of Technical Physics (China)
Long Zheng, Shanghai Institute of Technical Physics (China)
Yihua Hu, Shanghai Institute of Technical Physics (China)
Electronic Engineering Institute (China)


Published in SPIE Proceedings Vol. 9297:
International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors
Jurgen Czarske; Shulian Zhang; David Sampson; Wei Wang; Yanbiao Liao, Editor(s)

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