Coherent quantum cascade laser micro-stripe arrays | Zendy

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

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Coherent quantum cascade laser micro-stripe arrays

Author(s) -

G. M. de Naurois,

Mathieu Carras,

B. Simozrag,

O. Patard,

F. Alexandre,

X. Marcadet

Publication year - 2011

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3643690

Subject(s) - lasing threshold , cascade , laser , quantum cascade laser , materials science , optoelectronics , phase (matter) , quantum , coupling (piping) , antisymmetric relation , semiconductor laser theory , optics , physics , chemistry , chromatography , quantum mechanics , metallurgy , mathematical physics

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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