
Proceedings Paper
Widely-tunable interband cascade lasers for the mid-infraredFormat | Member Price | Non-Member Price |
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Paper Abstract
Distributed feedback (DFB) laser sources are key components of modern gas analyzers based on tunable laser absorption
spectroscopy. While the current induced tuning range of DFB lasers is usually limited to a few nanometers, there are a
number of applications which will benefit from lasers with a wider tunability, e.g. multi-gas sensing or spectroscopy of
liquids. In this paper, we present monolithic widely tunable laser devices in the 3.6 μm wavelength region based on
interband cascade laser material. Using the concept of binary superimposed (BSG) grating structures and two-segment
Vernier-tuning, stable single-mode emission is realized at discrete wavelength channels in the 3560 nm to 3620 nm
region. A total tuning range around 60 nm in three channels is demonstrated. Within a single channel, the emission
wavelength can be tuned mode hop free over up to 5 nm. The wavelength channels can be arbitrarily placed in the range
of the material gain, allowing BSG lasers to sweep over several gas absorption lines. The number of channels can be
chosen as well. Within a wavelength channel, the lasers show DFB like spectral performance with setup limited
sidemode suppressino ratios around 25 dB and milliwatt levels of continuous wave output powers around room
temperature. This paper will present an overview of the laser concept, simulations, performance data and applications.
Paper Details
Date Published: 8 February 2015
PDF: 7 pages
Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 93702A (8 February 2015); doi: 10.1117/12.2079926
Published in SPIE Proceedings Vol. 9370:
Quantum Sensing and Nanophotonic Devices XII
Manijeh Razeghi; Eric Tournié; Gail J. Brown, Editor(s)
PDF: 7 pages
Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 93702A (8 February 2015); doi: 10.1117/12.2079926
Show Author Affiliations
M. von Edlinger, nanoplus GmbH (Germany)
J. Scheuermann, nanoplus GmbH (Germany)
R. Weih, Julius-Maximilians-Univ. Würzburg (Germany)
L. Nähle, nanoplus GmbH (Germany)
J. Scheuermann, nanoplus GmbH (Germany)
R. Weih, Julius-Maximilians-Univ. Würzburg (Germany)
L. Nähle, nanoplus GmbH (Germany)
M. Fischer, nanoplus GmbH (Germany)
S. Höfling, Julius-Maximilians-Univ. Würzburg (Germany)
Johannes Koeth, nanoplus GmbH (Germany)
M. Kamp, Julius-Maximilians-Univ. Würzburg (Germany)
S. Höfling, Julius-Maximilians-Univ. Würzburg (Germany)
Johannes Koeth, nanoplus GmbH (Germany)
M. Kamp, Julius-Maximilians-Univ. Würzburg (Germany)
Published in SPIE Proceedings Vol. 9370:
Quantum Sensing and Nanophotonic Devices XII
Manijeh Razeghi; Eric Tournié; Gail J. Brown, Editor(s)
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