Coherent quantum cascade laser micro-stripe arrays

G. M. de Naurois; M. Carras; B. Simozrag; O. Patard; F. Alexandre; X. Marcadet

doi:10.1063/1.3643690

journal article·2011-09-01Open access

Coherent quantum cascade laser micro-stripe arrays

G. M. de Naurois, M. Carras, B. Simozrag, O. Patard, F. Alexandre, X. Marcadet

AIP Advances· Volume 1· Issue 3

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Source abstract

Abstract

We have fabricated InP-based coherent quantum cascade laser micro-stripe arrays. Phase-locking is provided by evanescent coupling between adjacent stripes. Stripes are buried into semi-insulating iron doped InP. Lasing at room temperature is obtained at 8.4μm for stripe arrays comprising up to 16 emitters. Pure supermode emission is demonstrated via farfield measurements and simulations. The farfield pattern shows a dual-lobe emission, corroborating the predicted phase-locked antisymmetric supermode emission.

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Research context

OpenAlex topics: Spectroscopy and Laser Applications · Advanced Fiber Laser Technologies · Semiconductor Lasers and Optical Devices

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Affiliations

Campus Polytechnique III-V Lab, , 1, Avenue Augustin Fresnel, F-91767 Palaiseau Cedex, France

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