Design of high precision constant temperature control systems based on laser diodes
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1.
Southwest Institute of Technical Physics, Chengdu 610041, China;
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2.
Aviation Military Representative Office of Navy in Chengdu, Chengdu 610041, China
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Received Date:
2012-03-12
Accepted Date:
2012-04-26
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Abstract
In order to obtain stable output power and wavelength from a semiconductor laser in a large range of temperature,according to the characteristics of small volume,light weight and the high requirement of temperature stability of a semiconductor laser,with a negative-coefficient heat-sensitive resistance as a temperature sensor,a temperature control system was designed based on a micro control unit(MCU)and direct proportion-integration-differentiation(PID)algorithm.Changing the width and amplitude of the pulse width modulation signal output from the MCU to adjust the driving current and direction of the thermoelectric cooler,the temperature of the semiconductor laser was controlled at about 25℃±0.1℃.Experimental results show that the temperature control system is with high precision and fast responsibility in a large range of temperature,it is better than other similar products.
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References
|
[1]
|
SHI Zh W,ZHU Y,CHENG Y T.Temperature testing in temperature control system for laser diode[J].Optical Technique,2005,31(9): 168-170(in Chinese). |
|
[2]
|
CAO S S.Review of high power semiconductor lasers[J].Laser Technology,2000,24(4):203-206(in Chinese). |
|
[3]
|
WELCH D F.A brief history of high-power semiconductor lasers[J]. IEEE Journal of Selected Topics in Quantum Electronics,2000,6(6): 1470-1477. |
|
[4]
|
ZHAO Y Zh,LI Z W,GAO Sh Q,et al.Ultra-trace analysis of biological molecules in water by means of the resonance Raman spectra in liquid-core optical fiber[J].Laser Technology,2004,28(5):491-493(in Chinese). |
|
[5]
|
MIZUNO M,TAHARA T.Novel resonance Raman enhancement of local structure around solvated electrons in water[J].Journal of Physical Chemistry,2001,105(39):8823-8826. |
|
[6]
|
XU Y M.Raman spectroscopy in application of structure biology[M].Beijing:Chemical Industry Press,2005:11-150(in Chinese). |
|
[7]
|
GEHRING F K.Peltier cooling of superconducting current leads[J]. Cryogenics,2001,76(41):521-528. |
|
[8]
|
HUANG Y B,WANG Y J.Numerical analysis of the scaling law about focused beam spr eading induced by the atmosphere[J].Acta Physica Sinica,2006,87(55):6715-6719(in Chinese). |
|
[9]
|
FRIEDENBERG A,GOLDBIATT I.Non uniformity two-point linear correction errors in infrared focal plane arrays[J].Optical Engineering,1998,37(4):1251-1253. |
|
[10]
|
LIU R.High-accuracy current and temperature control for laser diode using MCS-51microcontroller[J].Laser Technology,2004,28(3): 225-227(in Chinese). |
|
[11]
|
LIU K F,QING Sh H,LI J,et al.Fault analysis and strategy of high pulsed power supply for high power laser[J].High Power Laser and Particle Beams,2001,13(6):717-720(in Chinese). |
|
[12]
|
WU H X,SHEN Sh P.Basic of theory and applications on PID control[J].Control Engineering of China,2003,27(2):37-42(in Chinese). |
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