CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 9767 > Article
Paper
10 March 2016 Interband cascade laser sources in the mid-infrared for green photonics
J. Koeth, M. von Edlinger, J. Scheuermann, S. Becker, L. Nähle, M. Fischer, R. Weih, M. Kamp, S. Höfling
Author Affiliations +
Proceedings Volume 9767, Novel In-Plane Semiconductor Lasers XV; 976712 (2016) https://doi.org/10.1117/12.2212644
Event: SPIE OPTO, 2016, San Francisco, California, United States
Abstract
Tunable Laser Absorption Spectroscopy (TLAS) has proven to be a versatile tool for gas sensing applications with significant advantages compared to other techniques. These advantages include real time measurement, standoff detection and ruggedness of the sensor. Especially the Mid-Infrared (MIR) wavelength region from 3 to 6 microns is of great interest for industrial process control and the reduction of pollutants. In this contribution we present novel ICL devices developed to address the crucial air pollutant sulfur dioxide SO2 at its transition around 4 μm. In general, interband cascade lasers (ICLs) have evolved into important laser sources for the MIR spectral range. Compared to quantum cascade lasers, they offer significant advantages with respect to threshold power density as well as overall power consumption. In contrast to conventional diode lasers, ICLs are able to cover the entire MIR wavelength range of interest. For application in TLAS, single-mode devices are required. In this work application-grade distributed feedback (DFB) ICL devices for addressing SO2 at the wavelength range around 4 μm are presented. A lateral metal grating, defined by electron beam lithography, is used to achieve DFB operation and hence spectrally single-mode emission. Continuous wave laser operation with threshold power consumption below 100 mW at room temperature, side mode suppression ratio of > 30 dB and wavelength tuning range up to 28 nm are demonstrated.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
J. Koeth, M. von Edlinger, J. Scheuermann, S. Becker, L. Nähle, M. Fischer, R. Weih, M. Kamp, and S. Höfling "Interband cascade laser sources in the mid-infrared for green photonics", Proc. SPIE 9767, Novel In-Plane Semiconductor Lasers XV, 976712 (10 March 2016); https://doi.org/10.1117/12.2212644
ACCESS THE FULL ARTICLE
PERSONAL SIGN IN
Full access may be available with your subscription
Forgot your username?
Forgot your password?
No SPIE account? Create an account
Institutional Access:
Sign in with your institutional credentials
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 6 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Quantum cascade lasers
Absorption
Continuous wave operation
Mid-IR
Sensors
Metals
Waveguides
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top