THERMAL AND THERMO-MECHANICAL CHARACTERISTICS OF CRYOGENIC MICROCOOLER FOR OPTIMUM PERFORMANCE AND RELIABILITY
Technical Report,17 Apr 2015,17 Apr 2017
University of Maryland University of Maryland United States
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This report details the characterization of cryogenic microcoolers for optimum thermal performance and thermo-mechanical reliability when employed for high power laser diodes LDs. The goal was achieved by conducting two specific tasks Development of Cryogenic Microcooler and Apparatus for High-Power LD Bar Part I and PoF-based Reliability Assessment of LDMicrocooler Subassembly Subjected to Cryogenic Operating Conditions Part II. In Part I, an open-loop liquid nitrogen cooler for the cryogenic operation of LD bars was developed and tested. In Part II, the reliability of LDmicrocooler subassemblies subjected to cryogenic operating conditions was assessed by proposing a hierarchical physics-of-failure-based reliability assessment model.
- Electrical and Electronic Equipment