Zenghui Gu
Chinese Academy of Sciences
10 Papers
14 Citations
Zenghui Gu is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Laser & Continuous wave. The author has an hindex of 1, co-authored 10 publications.
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Papers
Spectral beam combining of discrete quantum cascade lasers
Zenghui Gu,Jinchuan Zhang,Shenqiang Zhai,Ning Zhuo,Shu-Man Liu,Junqi Liu,Lijun Wang,Fengqi Liu,Zhanguo Wang +8 more
TL;DR: In this article, the authors reported a spectral beam combining technique based on discrete quantum cascade laser at λ, ε, 4.8μm, where the entire spectrum span is approximately 29.1 cm−1.
Demonstration of High-Power and Stable Single-Mode in a Quantum Cascade Laser Using Buried Sampled Grating.
Feng-Min Cheng,Jinchuan Zhang,Dong-Bo Wang,Zenghui Gu,Ning Zhuo,Shenqiang Zhai,Lijun Wang,Junqi Liu,Shu-Man Liu,Fengqi Liu,Zhanguo Wang +10 more
TL;DR: High-power, low-threshold stable single-mode operation buried distributed feedback quantum cascade laser by incorporating sampled grating emitting at λ ~ 4.87 μm is demonstrated.
Tunable characteristic of phase-locked quantum cascade laser arrays
Zenghui Gu,Jinchuan Zhang,Huan Wang,Pengchang Yang,Ning Zhuo,Shenqiang Zhai,Junqi Liu,Lijun Wang,Shu-Man Liu,Fengqi Liu,Zhanguo Wang +10 more
TL;DR: In this article, a multimode interference (MMI) structure was designed to simplify the fabrication of phase-locked arrays, and the MMI geometry was optimized with a sufficient output channel distance to accommodate conventional photolithography and wet etching processes by which power amplifier array is fabricated without using complicated two-step etching-regrowth or dry etching technique.
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Coupled-ridge waveguide quantum cascade laser array lasing at λ ~ 5 µ m
Pengchang Yang,Jinchuan Zhang,Zenghui Gu,Chuan-Wei Liu,Yue Zhao,Feng-Min Cheng,Shenqiang Zhai,Ning Zhuo,Junqi Liu,Lijun Wang,Shu-Man Liu,Fengqi Liu +11 more
TL;DR: In this paper, the authors demonstrated high-power quantum cascade laser (QCL) arrays lasing at λ ~ 5 µm by employing an optimized coupled-ridge waveguide (CRW) structure.
InP-Based Surface-Emitting Distributed Feedback Lasers Operating at 2004 nm
Dong-Bo Wang,Junqi Liu,Shu-Man Liu,Fengqi Liu,Zhanguo Wang,Jinchuan Zhang,Sen-Sen Li,Feng-Min Cheng,Zenghui Gu,Yi-Xuan Zhu,Ning Zhuo,Shenqiang Zhai,Lijun Wang +12 more
TL;DR: In this paper, the InP-based buried grating coupled surface-emitting distributed feedback (DFB) was used to operate at a wavelength of 4.7 to 2006 nm without any mode hopping.
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