Design and implementation of high precision semiconductor laser drive system based on MAX1978

Wen Chen; Jiawei Zhang; Jiawei Liang; Huaqiu Deng

doi:10.1117/12.2592237

26 January 2021 Design and implementation of high precision semiconductor laser drive system based on MAX1978

Wen Chen, Jiawei Zhang, Jiawei Liang, Huaqiu Deng

Proceedings Volume 11767, 2020 International Conference on Optoelectronic Materials and Devices; 117670E (2021) https://doi.org/10.1117/12.2592237
Event: 2020 International Conference on Optoelectronic Materials and Devices, 2020, Guangzhou, China

Abstract

In this paper, the circuit design of 1470nm pumped laser required by fiber Raman amplifier is carried out, which solves the problem that the output optical power and wavelength of the laser are easily affected by temperature and drive current fluctuations. Compared with the existing circuit design, the circuit design in this paper simplifies the circuit topology structure, reduces the cost, ensures the working stability, and broadens the working linear area of constant current source. The current 1A is continuously adjustable, and the maximum relative error of current in one hour is 0.03% at 25°C. A chipset MAX1978 is adopted to realize temperature control, and the temperature control precision reaches 0.01°C. Finally, a high-precision semiconductor laser driving system with power supply of 5V and driving current of 1A is realized.

Citation Download Citation

Wen Chen, Jiawei Zhang, Jiawei Liang, and Huaqiu Deng "Design and implementation of high precision semiconductor laser drive system based on MAX1978", Proc. SPIE 11767, 2020 International Conference on Optoelectronic Materials and Devices, 117670E (26 January 2021); https://doi.org/10.1117/12.2592237

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