Room‐temperature quantum cascade laser packaged module at ∼8 μm designed for high‐frequency response

Ke Yang; Junqi Liu; Shenqiang Zhai; Jinchuan Zhang; Ning Zhuo; Lijun Wang; Shuman Liu; Fengqi Liu

doi:10.1049/ell2.12214

Electronics Letters (Aug 2021)

Room‐temperature quantum cascade laser packaged module at ∼8 μm designed for high‐frequency response

Ke Yang,
Junqi Liu,
Shenqiang Zhai,
Jinchuan Zhang,
Ning Zhuo,
Lijun Wang,
Shuman Liu,
Fengqi Liu

Affiliations

Ke Yang: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China
Junqi Liu: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China
Shenqiang Zhai: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China
Jinchuan Zhang: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China
Ning Zhuo: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China
Lijun Wang: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China
Shuman Liu: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China
Fengqi Liu: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing China

DOI: https://doi.org/10.1049/ell2.12214
Journal volume & issue: Vol. 57, no. 17
pp. 665 – 667

Abstract

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Abstract A high‐speed, room‐temperature quantum cascade laser packaged module emitting at 8.14 μm is presented. The cavity length of the laser is as small as 0.5 mm, and the threshold current at 298 K is 110 mA. A matching printed circuit board is inserted into the packaged module to reduce the RC constant. As a result, the rectification response of packaged module is relatively flat upto 2 GHz and the –3 dB cut‐off frequency is increased from 0.9 to 2.2 GHz.

Published in Electronics Letters

ISSN: 0013-5194 (Print); 1350-911X (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ietresearch.onlinelibrary.wiley.com/journal/1350911X

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