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Optical Engineering

High-performance InP-based midinfrared quantum cascade lasers at Northwestern University
Author(s): Manijeh Razeghi; Yanbo Bai; Steven Slivken; Shaban Ramezani Darvish
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Paper Abstract

We present recent performance highlights of midinfrared quantum cascade lasers (QCLs) based on an InP material system. At a representative wavelength around 4.7 µm, a number of breakthroughs have been achieved with concentrated effort. These breakthroughs include watt-level continuous wave operation at room temperature, greater than 50% peak wall plug efficiency at low temperatures, 100-W-level pulsed mode operation at room temperature, and 10-W-level pulsed mode operation of photonic crystal distributed feedback quantum cascade lasers at room temperature. Since the QCL technology is wavelength adaptive in nature, these demonstrations promise significant room for improvement across a wide range of mid-IR wavelengths.

Paper Details

Date Published: 1 November 2010
PDF: 4 pages
Opt. Eng. 49(11) 111103 doi: 10.1117/1.3497623
Published in: Optical Engineering Volume 49, Issue 11
Show Author Affiliations
Manijeh Razeghi, Northwestern Univ. (United States)
Yanbo Bai, Northwestern Univ. (United States)
Steven Slivken, Northwestern Univ. (United States)
Shaban Ramezani Darvish, Northwestern Univ. (United States)

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