Reliability of multi-stripe laser arrays

N. K. Dutta; F. R. Nash

doi:10.1117/12.804483

7 January 2009 Reliability of multi-stripe laser arrays

N. K. Dutta, F. R. Nash

Proceedings Volume 7132, Laser-Induced Damage in Optical Materials: 2008; 713217 (2009) https://doi.org/10.1117/12.804483
Event: Boulder Damage Symposium XL Annual Symposium on Optical Materials for High Power Lasers, 2008, Boulder, Colorado, United States

Abstract

Multi-stripe laser diodes are important for a wide range of applications including pump sources for high power fiber amplifiers and industrial applications. It is now believed that multimode single stripe laser diodes with high reliability have been designed and fabricated by several manufacturers. We have data which show FIT (failure in 109 hours) rates of ~ 12 FIT for 100 μm wide multimode emitters at power levels 2.5 W for a 15 year operation at 20 C. We have developed a method for calculating the survival probability of such multimode lasers when they are assembled in the form of a multi-stripe array. For a demanding application, a multi-stripe array can be considered a failure if one emitter in the array fails whereas for some other applications higher number of emitter failures is acceptable. The survival probability of the entire ensemble of lasers in the array as a function of number of stripes, number of failures, operating power level, and, near neighbor thermal interaction has been studied.

Citation Download Citation

N. K. Dutta and F. R. Nash "Reliability of multi-stripe laser arrays", Proc. SPIE 7132, Laser-Induced Damage in Optical Materials: 2008, 713217 (7 January 2009); https://doi.org/10.1117/12.804483

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