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Chin. Opt. Lett.
 Home  List of Issues    Issue 06 , Vol. 02 , 2004    Improving frequency stability of laser by means of temperature-controlled Fabry-Perot cavity


Improving frequency stability of laser by means of temperature-controlled Fabry-Perot cavity
Fagang Zhao, Qing Pan, Kunchi Peng
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006

Chin. Opt. Lett., 2004, 02(06): pp.334-334-

DOI:
Topic:Lasers and laser optics
Keywords(OCIS Code): 120.2230  120.4640  140.3560  

Abstract
The frequency stability of an all-solid-state Nd:YVO4 laser is significantly improved by means of a specially designed Fabry-Perot (F-P) interferometer used for the frequency standard in the frequency-stabilizing system. The temperature of the F-P cavity is accurately controlled by a set of thermoelectric cooler (TEC) modules attached on the body of the cavity and the electronic feedback circuit. We find that the long-term unidirectional frequency shift of the output laser, resulting from the slow increase of the cavity length under the effect of the temperature integration on the cavity body, is essentially eliminated. The frequency stability of the output laser with the power of 530 mW is better than +- 200 kHz in 1 minute and +- 2.3 MHz in 40 minutes, respectively. The fluctuation of output power is smaller than +- 0.5% over one hour.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2004/1/5
Accepted:
Posted online:

Get Citation: Fagang Zhao, Qing Pan, Kunchi Peng, "Improving frequency stability of laser by means of temperature-controlled Fabry-Perot cavity," Chin. Opt. Lett. 02(06), 334-334-(2004)

Note: This research was supported by the Major State Basic Research Project of China (No. 2001CB309304), the National Natural Science Foundation of China (No. 60238010, 60178012, and 60378014), and Shanxi Provincial Science Foundation (No. 20011030). Q. Pan is the author to whom the correspondence should be addressed, his e-mail address is panqing@sxu.edu.cn.



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