Output facet heating mechanism for uncoated high power long wave infrared quantum cascade lasers

Output facet temperatures of an uncoated high power continuous-wave quantum cascade laser (QCL) emitting at 8.5 μm were measured by using micro-Raman thermometry. The rate of the measured temperature changes with the injected electrical power increased from 6.5 K/W below the laser threshold to 12.3...

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Bibliographic Details
Main Authors: Dagan Hathaway, Monas Shahzad, Tamil S. Sakthivel, Matthew Suttinger, Rowel Go, Enrique Sanchez, Sudipta Seal, Hong Shu, Arkadiy Lyakh
Format: Article
Language:English
Published: AIP Publishing LLC 2020-08-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0012657