Design of high precision laser temperature control circuit

CHEN Wei; YANG Zhu; ZHANG Wei

doi:10.7510/jgjs.issn.1001-3806.2014.05.020

In order to maintain the stability of the emission wavelength of an optical transceiver, a thermoelectric cooler was adopted to control the temperature in the transceiver. A temperature control circuit was designed with high sampling precision and fast response speed. Through theoretical analysis and experimental verification, the dependence of emission wavelength on the temperature was obtained in the application temperature range. The results show that the optimized temperature control circuit of thermoelectric cooler has good performance, which can control the temperature of the laser accurately and quickly and lock the emission wavelength within 20pm change range. The design meets the requirements of practical applications fully.

Design of high precision laser temperature control circuit

Corresponding author: YANG Zhu, yangz@wri.com.cn;

1. Wuhan Research Institute of Posts and Telecommunications, Wuhan 430074, China;

2. Oplink Communications Inc., Wuhan 430074, China

Received Date: 2013-10-08

Accepted Date: 2014-01-20

Available Online: 2014-09-25

Abstract: In order to maintain the stability of the emission wavelength of an optical transceiver, a thermoelectric cooler was adopted to control the temperature in the transceiver. A temperature control circuit was designed with high sampling precision and fast response speed. Through theoretical analysis and experimental verification, the dependence of emission wavelength on the temperature was obtained in the application temperature range. The results show that the optimized temperature control circuit of thermoelectric cooler has good performance, which can control the temperature of the laser accurately and quickly and lock the emission wavelength within 20pm change range. The design meets the requirements of practical applications fully.

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Reference (10)

[1]	YAO J, MAO X R. Modern communication network[M]. Beijing: Posts & Telecom Press, 2010:14-16 (in Chinese).
[2]	FAN C X, CAO L N. The principles of communication[M]. 6th ed. Beijing: National Defence Industry Press, 2006:6-8(in Chinese).
[3]	INTERNATIONAL TELECOMMUNICATION UNION(ITU). ITU-T G.694.1, Spectral grids for WDM applications: DWDM frequency grid[S].Geneva,Switzerland: Telecommunication Standardization Sector of ITU, 2012.
[4]	KANG G H, CHEN D Q, ZHANG L. Fundamentals of electronic technology-analog part[M]. 5th ed. Beijing: Higher Education Press, 2006:41-42(in Chinese).
[5]	LIU D M, SUN J Q, LU P, et al. Fiber optics[M]. 2nd ed. Beijing: Science Press, 2008:145-148(in Chinese).
[6]	MA Y W, WANG J H, BAO C F, et al. Optoelectronics[M]. 2nd ed. Hangzhou: Zhejiang University Press, 2006:28-30(in Chinese).
[7]	ZHU Z M. Physical optics[M]. Wuhan: Huazhong University of Science and Technology Press, 2009: 146-155 (in Chinese).
[8]	DING G Q, CHEN L Y, LIU R, et al. 10Gb/s EML-TOSA and its application in the long-distance optical communication [J]. Optical Communication Technology, 2012,36(2): 4-7(in Chinese).
[9]	LI J S. NTC Thermistor and application analysis[J]. Journal of Jingmen Technical College, 2007,22(6):43-45(in Chinese).
[10]	SHI S G, SHI X. The temperature control system based on digital PID and potentiometer[J]. Journal of Wuhan Polytechnic University, 2005, 3(1):31-34(in Chinese).

Design of high precision laser temperature control circuit

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References

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