Long wavelength distributed feedback tapered quantum cascade lasers

被引：0

作者：

Pinto, Davide ^{[1
,2
]}

Thomas, Daniel Andres Diaz ^{[2
]}

Loghmari, Zeineb ^{[3
]}

Kinjalk, Kumar ^{[2
]}

Teissier, Roland ^{[3
]}

Bahriz, Michael ^{[2
]}

Lendl, Bernhard ^{[1
]}

Baranov, Alexei N. ^{[2
]}

机构：

[1] TU Wien, Inst Chem Technol & Analyt, Getreidemarkt 9-164, A-1060 Vienna, Austria

[2] Univ Montpellier, IES, CNRS, F-34095 Montpellier, France

[3] MirSense, F-34095 Montpellier, France

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 15期

基金：

欧盟地平线“2020”;

关键词：

D O I：

10.1364/OE.521039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a study on distributed feedback tapered quantum cascade lasers emitting at 14 mu m. The fabricated lasers with taper angles between 0 degrees and 3 degrees exhibited output powers scaling in accordance with the active zone volume increase. Reduced divergence angles as small as 4.2 degrees have been obtained with diffraction limited-beam quality (M2 approximate to 1). With a first order Bragg-grating for single longitudinal mode selection, continuous wave operation was demonstrated up to almost room temperature with side-mode suppression ratios greater than 20 dB.

引用

页码：26925 / 26937

页数：13

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