Abstract: This paper describes the design of a multi-channel parallel laser driver module based on DSP and CPLD control. This laser driver module can drive and modulate multiple laser tubes and is compatible with the working voltage and working current of different types of laser tubes. The laser driver module has been used in a multi-wavelength multi-order optical storage experimental system and can drive and modulate 780m, 650m and 407nm lasers. The experimental results show that this laser driver module can achieve long-term stable driving of semiconductor lasers and has sensitive high-frequency modulation capabilities. It plays an important role in realizing wavelength multiplexing storage technology in optical storage.
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