Accelerated aging and reliability studies of multisection tunable GCSR lasers for dense WDM applications

摘要

We have performed a 3000 hour long accelerated aging and reliability study of widely-tunable GCSR lasers. Very stable power and SMSR's were measured, however, lasing frequency drifts were as high as 20-50 GHz. A strong correlation between magnitude of injection current and frequency drift were observed. This can be significantly reduced by an additional burn-in prior to the aging study or application of the device in a real-life system. Equivalent room-temperature lifetime of the device was estimated to be 11.4 years. Statistical analysis of the observed changes as well as equivalent room temperature operation lifetime, based on the "10 0Hz frequency shift" end-of-life criteria, will also be presented.