A tunable and wide-range frequency-offset locking technology using external frequency modulation

Zhikun Jiang; Yanying Feng; Xueshu Yan; Shu Chen

doi:10.1117/12.2197068

15 October 2015 A tunable and wide-range frequency-offset locking technology using external frequency modulation

Zhikun Jiang, Yanying Feng, Xueshu Yan, Shu Chen

Proceedings Volume 9671, AOPC 2015: Advances in Laser Technology and Applications; 967104 (2015) https://doi.org/10.1117/12.2197068
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

In order to obtain frequency-locked laser beam with widely tunable frequency- offset used in a clod atom interferometer, a frequency stabilization method using a fiber electro-optic modulator (FEOM) is proposed. In this method, the laser passing through a FEOM can be locked with a wide-range frequency-offset, avoiding the frequency and power jitter caused by internal modulation on the current or PZT at the same time. To evaluate the outcome of this method, a beat signal between the frequency-shifted laser and the laser locked by Doppler-free Dichroic Atomic Vapor Laser Lock was measured. The analysis of the experimental results shows that the frequency-offset of the laser beam, with a full width at half maximum less than 1 MHz, can be tuned from 200 MHz to 10 GHz, which successfully meets the requirements of cold atom interferometer.

Citation Download Citation

Zhikun Jiang, Yanying Feng, Xueshu Yan, and Shu Chen "A tunable and wide-range frequency-offset locking technology using external frequency modulation", Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 967104 (15 October 2015); https://doi.org/10.1117/12.2197068

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