Optimization of LD’s Temperature Control System Using Finned Tubular Radiator

Abstract:

By analyzing of thermoelectric cooler(TEC) working characteristics and using one-dimensional heat transfer equation, mathematical relationship between TEC working power and radiator equivalent thermal conductivity is derived. Temperature control efficiency could be improved by increasing equivalent thermal conductivity was proved. So that an optimization method using finned tubular radiator in LD temperature controller was presented, including theoretical foundation of radiator selection and system structure. Compared with normal radiator, the stable-time of the LD temperature controller using finned tubular reduces 50%, and stable-error reduces 60%, which was proved by mathematical calculation and experimental result of 2W LD system. Compared with forced air cooling and forced water cooling, the system has property of low vibration disturbance and simple structure. It followed that the finned tubular radiator was suitable for temperature control of medium and small power LD, which can improve temperature control efficiency and optimize the system.

• Periodical: Advanced Materials Research (Volumes 546-547)
• Pages: 800-805
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.546-547.800
• Online since: July 2012
• Authors: Fei Guo, Wen Dong Zou, Hai He Xie, Qiang Du
• Keywords: Finned Tubular Radiator, Laser Diode, TEC, Temperature Control System

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