A Method of Stabilizing Semiconductor Laser Power

Qi Ping Yuan; Tian Mei Zheng; Zheng Rong Tong; Xiu Feng Yang; Ye Cao

doi:10.4028/www.scientific.net/AMM.130-134.1370

Paper Titles

Study on the Influence of the Quantity of Grooves on Performance of New Balance Drum
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The Design of Electromagnetic Flowmeter in Partially Filled Pipes
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Speed Estimation Method for Sensor Less Control of AC Motor Drives Based on Stator Field Orientation
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Electromagnetic Analysis of Frequency Selective Surfaces Using the SSED Method
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A Method of Stabilizing Semiconductor Laser Power
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Design of A 3-10 GHz Low Phase Noise YIG-Tuned Oscillator
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Study of Structure and Optical Properties of Magnetron Sputtered ZnS Thin Films by Annealing
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Damage Efficiency Research of PCB Components under Strong Electromagnetic Pulse
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Effects of Aperture Amount and Offset on Couplings of Strong Electromagnetic Pulse
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134A Method of Stabilizing Semiconductor Laser Power

A Method of Stabilizing Semiconductor Laser Power

Abstract:

For the influence of the temperature and current, the power of semiconductor laser fluctuates constantly. So this paper comes up with a new method to solve this problem. The design of peripheral circuit contains two parts: temperature control and power control. The system of temperature control uses special laser temperature control chip, which realizes the accuracy of 0.01°C. The system of power control adopts hardware PI control, over-current protection, over-voltage protection, and temperature protection. Temperature compensation is added to the circuit, which realizes the accuracy of 0.01mW.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

1370-1373

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.1370

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Online since:

October 2011

Authors:

Qi Ping Yuan, Tian Mei Zheng, Zheng Rong Tong, Xiu Feng Yang, Ye Cao

Keywords:

Optical Power, Proportion Integration (PI), Semiconductor Lasers

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