High power frequency comb based on mid-infrared quantum cascade laser at λ ∼ 9 μm
Abstract
We investigate a frequency comb source based on a mid-infrared quantum cascade laser at λ ∼ 9 μm with high power output. A broad flat-top gain with near-zero group velocity dispersion has been engineered using a dual-core active region structure. This favors the locking of the dispersed Fabry-Pérot modes into equally spaced frequency lines via four wave mixing. A current range with a narrow intermode beating linewidth of 3 kHz is identified with a fast detector and spectrum analyzer. This range corresponds to a broad spectral coverage of 65 cm−1 and a high power output of 180 mW for ∼176 comb modes.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 02, 2015
- Source ID
- 10.1063/1.4907646
Entities
People
- Abbas Haddadi
- C. Sirtori
- D. Heydari
- M. Amanti
- M. Razeghi
- Mingxing Chen
- N. Bandyopadhyay
- Q. Y. Lu
- R. Mcclintock
- S. Slivken
- W. J. Zhou
- Yuanli Bai
Organizations
- National Aeronautics and Space Administration
- National Science Foundation
- Naval Air Systems Command
- Northwestern University
- Paris Diderot University
- United States Department of Homeland Security