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Title: Surface emitting multi-wavelength array of single frequency quantum cascade lasers

We present a surface emitting laser array design based on distributed Bragg reflectors together with a second order extractor, providing a deterministic mode selection mechanism. The technology is implemented as a buried heterostructure compatible with continuous-wave operation and low dissipation. A proof of principle featured 10 regularly spaced single mode devices with a coverage of 175 cm{sup −1} in the 8–10 μm wavelength range and milliwatt output powers with a far-field pattern full-width half-maximum of 8.3° in the longitudinal direction.
Authors:
; ; ; ;  [1] ;  [2]
  1. Institute for Quantum Electronics, ETH-Zürich, CH-8093 Zürich (Switzerland)
  2. FIRST Laboratory ETH-Zürich, CH-8093 Zürich (Switzerland)
Publication Date:
OSTI Identifier:
22412641
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BRAGG REFLECTION; LASER RADIATION; LASERS; MODE SELECTION; OPERATION; PHOTON EMISSION; SURFACES; WAVELENGTHS