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

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4913203· OSTI ID:22412641
; ; ;  [1];  [2]
  1. Institute for Quantum Electronics, ETH-Zürich, CH-8093 Zürich (Switzerland)
  2. FIRST Laboratory ETH-Zürich, CH-8093 Zürich (Switzerland)

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.

OSTI ID:
22412641
Journal Information:
Applied Physics Letters, Vol. 106, Issue 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English