Beam stability of buried-heterostructure quantum cascade lasers employing HVPE regrowth

被引：13

作者：

Ha Ryu, Jae ^{[1
]}

Kirch, Jeremy D. ^{[1
]}

Knipfer, Benjamin ^{[1
]}

Liu, Zerui ^{[1
]}

Turville-Heitz, Morgan ^{[2
]}

Earles, Tom ^{[2
]}

Marsland, Robert A. ^{[2
]}

Stromberg, Axel ^{[3
]}

Omanakuttan, Giriprasanth ^{[3
]}

Sun, Yan-Ting ^{[3
]}

Lourdudoss, Sebastian ^{[3
]}

Botez, Dan ^{[1
]}

Mawst, Luke J. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Elect & Comp Engn, 1415 Engn Dr, Madison, WI 53706 USA

[2] Intraband LLC, 200 N Prospect Ave, Madison, WI 53726 USA

[3] KTH Royal Inst Technol, Dept Appl Phys, S-10691 Stockholm, Sweden

来源：

OPTICS EXPRESS | 2021年 / 29卷 / 02期

基金：

瑞典研究理事会; 欧盟地平线“2020”;

关键词：

OPTICAL-PROPERTIES; INP; ARRAYS; FE; PB; NI; MO; AU; AL; TI;

D O I：

10.1364/OE.414489

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Measurements of beam stability for mid-infrared (IR)-emitting quantum cascade lasers (QCLs) are important for applications that require the beam to travel through air to remote targets, such as free-space communication links. We report beam-quality measurement results of narrow-ridge, 4.6 mu m-emitting buried-heterostructure (BH) QCLs fabricated using ICP etching and HVPE regrowth. Beam-quality measurements under QCW operation exhibit M-2 < 1.2 up to 1 W for similar to 5 mu m-wide ridges. 5 mu m-wide devices display some small degree of centroid motion with increasing output power (< 0.125 mrad), which corresponds to a targeting error of similar to 1.25 cm over a distance of 100 m. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2819 / 2826

页数：8

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