Tunable wavelength surface quantum cascade lasers for chemical sensors in the 3-6 um spectral region

A. Christou; C. C. Zhang; M. Linnick

doi:10.1117/12.728851

16 October 2007 Tunable wavelength surface quantum cascade lasers for chemical sensors in the 3-6 μm spectral region

A. Christou, C. C. Zhang, M. Linnick

Proceedings Volume 6740, Optical Materials in Defence Systems Technology IV; 67400G (2007) https://doi.org/10.1117/12.728851
Event: Optics/Photonics in Security and Defence, 2007, Florence, Italy

Abstract

The authors present the design and calculated performance of a low threshold selectively oxidized Surface Emitting Laser (SEL) for operation at a wavelength of up 3.0 μm. The device is based on III-V quaternary semiconductor alloys and is grown by the Molecular Beam Epitaxy technique. The theoretical investigation of the optical properties of the compound semiconductor alloys allows for the selection of the optimum materials for highly reflective Bragg mirrors. The simulation of the designed SEL performance has been carried out by evaluation of the important laser characteristics such as threshold gain, threshold current density and external quantum efficiency. We present a design which integrates a thermoelectric controller and multi-SELs to provide continuous tunability.

Citation Download Citation

A. Christou, C. C. Zhang, and M. Linnick "Tunable wavelength surface quantum cascade lasers for chemical sensors in the 3-6 μm spectral region", Proc. SPIE 6740, Optical Materials in Defence Systems Technology IV, 67400G (16 October 2007); https://doi.org/10.1117/12.728851

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