Effective methods for evaluation of high power laser diode quality and reliability

摘要

In this paper, a high power laser diode electrical derivative parameters test instrument is developed, the wavelength range of this instrument is between 400nm to 1300nm, the power range of this instrument is between 1W to 15W. The relationships between the device reliability and the electrical derivative parameters are discussed. Then the measurements of 20 high power 808nm AlGaAs/GaAs laser diodes by using this instrument combined with the aging test results demonstrate that the electrical derivative parameters can use to evaluate the laser diode reliability and quality effectively.