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To eliminate the great influence of temperature variation on the high-power semiconductor laser, we propose an approach using digital temperature sensor to control the temperature of the laser. Compared to the traditional analog temperature sensor RTDS, the digital temperature sensor has an advantage of high sensitivity, linearity, fast response and easy use. This system contains a digital signal...
Semiconductor laser diode(LD) is widely used in optical fiber communication, integrated optics, laser printing, gas sensing, laser beam flying, optical disc memory and many other areas. LD is very sensitive to the influence of heating effect during its working, research results indicate that LD wavelength drifts by 0.2~0.5 nanometer when the LD temperature changes by 1°C, moreover, temperature increment...
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