Thermal conductivity tensors of the cladding and active layers of interband cascade lasers
Abstract
The cross-plane and in-plane thermal conductivities of the W-active stages and InAs/AlSb superlattice optical cladding layer of an interband cascade laser (ICL) were characterized for temperatures ranging from 15 K to 324 K. The in-plane thermal conductivity of the active layer is somewhat larger than the cross-plane value at temperatures above about 30 K, while the thermal conductivity tensor becomes nearly isotropic at the lowest temperatures studied. These results will improve ICL performance simulations and guide the optimization of thermal management.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 29, 2014
- Source ID
- 10.1063/1.4905279
Entities
People
- Boya Cui
- C. D. Merritt
- C. L. Canedy
- Chuanle Zhou
- Chul Soo Kim
- I. Vurgaftman
- J. Abell
- J. R. Meyer
- M. Grayson
- Min Suk Kim
- W. W. Bewley
Organizations
- Air Force Office of Scientific Research
- National Science Foundation
- Northwestern University
- Office of Naval Research
- United States Naval Research Laboratory