Tapered Quantum Cascade Laser Achieving Low Divergence Angle and High Output Power

Tapered Quantum Cascade Laser Achieving Low Divergence Angle and High Output Power

In this work, we present a high-performance tapered quantum cascade laser (QCL) designed to achieve both high output power and low divergence angle. By integrating a tapered waveguide with a Fabry–Perot structure, significant improvements of tapered QCL devices in both output power and beam quality...

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Bibliographic Details
Main Authors: Zizhuo Liu, Hongxiao Li, Jiagang Chen, Anlan Chen, Shan Niu, Changlei Wu, Yongqiang Sun, Xingli Zhong, Hui Su, Hao Xu, Jinchuan Zhang, Jiang Wu, Fengqi Liu
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Sensors
Subjects:
quantum cascade laser
mid-infrared
optoelectronic device
semiconductor laser
tapered waveguide
Online Access:https://www.mdpi.com/1424-8220/25/15/4572
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