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- Title
Room‐temperature quantum cascade laser packaged module at ∼8 μm designed for high‐frequency response.
- Authors
Yang, Ke; Liu, Junqi; Zhai, Shenqiang; Zhang, Jinchuan; Zhuo, Ning; Wang, Lijun; Liu, Shuman; Liu, Fengqi
- 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.
- Subjects
QUANTUM cascade lasers; QUANTUM well lasers; THRESHOLD energy; RECTIFICATION (Electricity); ELECTRIC currents
- Publication
Electronics Letters (Wiley-Blackwell), 2021, Vol 57, Issue 17, p665
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/ell2.12214