Published January 2016 | Version v1
Journal article Metadata-only

Continuous wave operation of quantum cascade lasers with frequency-shifted feedback

Creators

  • 1. College of Optics and Photonics, University of Central Florida, 304 Scorpius St, Orlando, FL 32826 (United States)
  • 2. NanoScience Technology Center, University of Central Florida, 12424 Research Pkwy, Orlando, FL 32826 (United States)
  • 3. Pranalytica, Inc., 1101 Colorado Ave., Santa Monica, CA 90401 (United States)

Description

Operation of continuous wave quantum cascade lasers with a frequency-shifted feedback provided by an acousto-optic modulator is reported. Measured linewidth of 1.7 cm−1 for these devices, under CW operating conditions, was in a good agreement with predictions of a model based on frequency-shifted feedback seeded by spontaneous emission. Linewidth broadening was observed for short sweep times, consistent with sound wave grating period variation across the illuminated area on the acousto-optic modulator. Standoff detection capability of the AOM-based QCL setup was demonstrated for several solid materials

Additional details

Identifiers

DOI
10.1063/1.4940760;

Publishing Information

Journal Title
AIP Advances
Journal Volume
6
Journal Issue
1
Journal Page Range
p. 015312-015312.6
ISSN
2158-3226
CODEN
AAIDBI

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47062553
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ACOUSTICS; DETECTION; EMISSION; FEEDBACK; LASERS; LINE WIDTHS; OPERATION; OPTICS; SOLIDS; SOUND WAVES; VARIATIONS

Optional Information

Notes
(c) 2016 Author(s)