Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

DFB Interband Cascade Laser Array for mid infrared spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

Since distributed feedback interband cascade lasers have already shown to be able to cover a wide window in the mid infrared region (2.8 µm [1] to 5.2 µm [2]) they are suitable light sources for applications where smallest concentrations of several gases have to be traced via absorption spectroscopy. With their broken gap alignment of the two binaries GaSb and InAs, carriers re-enter the conduction band after making a radiative recombination. This enables multiple quantum well stages in a stacked scheme as in quantum cascade lasers. Due to the interband nature of the transition, the gain per stage is larger and fewer stages are required to reach lasing threshold at moderate current levels. With threshold currents in the ten milliampere range, operation voltages below ten volts and output power of a few milliwatts, the interband cascade laser are best suited for spectroscopic applications. We demonstrate an array of multiple spectrally monomode emitters on a single semiconductor chip. The targeted emission wavelengths cover the mid infrared regime from around 3.3 to 3.5 microns.

© 2019 The Author(s)

PDF Article
This paper was not presented at the conference

More Like This
Sensitive detection of methane via absorption spectroscopy using a mid-infrared DFB interband cascade laser

David M. Sonnenfroh, Seonkyung Lee, Joel M. Hensley, Mark G. Allen, John Bradshaw, John Pham, John Bruno, and Donald Wortman
CTuX3 Conference on Lasers and Electro-Optics (CLEO:S&I) 2003

Widely Tunable Interband Cascade Lasers for the Mid-Infrared

M. von Edlinger, R. Weih, J. Scheuermann, L. Nähle, M. Fischer, S. Höfling, J. Koeth, and M. Kamp
CB_6_1 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2015

Interband Cascade Laser Based Sensing

L. Nähle, M. von Edlinger, J. Scheuermann, M. Fischer, J. Koeth, R. Weih, and M. Kamp
OT1C.4 Bio-Optics: Design and Application (BODA) 2015

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved