Reliability Assessment of Solid State Lasers Based on Step Stress Accelerated Degradation Test

DOI

10.2991/jimec-17.2017.134How to use a DOI?

Keywords

SSADT; solid state lasers; reliability assessment.

Abstract

Highly-reliable and long-lifetime solid state lasers require the extremely high reliable assemblies over a long period of time. In order to shorten the test time, we apply step stress accelerated degradation test (SSADT) to assess solid state lasers' reliability. Firstly, the assumptions and introductionof SSADT are given. Then, we establish a performance model of solid state lasers which is determined by two factors: photoelectric change efficiency and input electrical power. Next, a degradation model is set up under the assumption that the degradation of photoelectric change efficiency follows Wiener process. On the basis of failure mode effect of solid state lasers, accelerated model is determined and thus reliability model is obtained. The maximum likelihood is used to estimate the parameters of reliability model. Finally, an example of solid state lasers' SSADT is presented to implement the proposed method.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaolu Fu
AU  - Jun Yang
PY  - 2017/10
DA  - 2017/10
TI  - Reliability Assessment of Solid State Lasers Based on Step Stress Accelerated Degradation Test
BT  - Proceedings of the 2017 2nd Joint International Information Technology, Mechanical and Electronic Engineering Conference (JIMEC 2017)
PB  - Atlantis Press
SP  - 621
EP  - 624
SN  - 2352-538X
UR  - https://doi.org/10.2991/jimec-17.2017.134
DO  - 10.2991/jimec-17.2017.134
ID  - Fu2017/10
ER  -