Experiment Investigation of the Temperature Characteristics of 975nm SLD

Abstract

The output optical power and spectra of a 975 nm semiconductor laser diode (SLD) were measured and analyzed when the SLD was operated with different current in the temperature range of -10°C—65°C. The results showed that the output center wavelength of the SLD shifts in the direction of long wavelength as the operation current and temperature rises. The slopes were approximately 0.24nm/100mA and 0.36nm/°C, respectively. Furthermore, the Conversion efficiency of the SLD was higher when the temperature was low. The reasons for the red shift of SLD was theoretical analyzed.