High-Power Terahertz Photonic Crystal Surface-Emitting Laser with High Beam Quality
-
Published:2024-02-05
Issue:2
Volume:11
Page:150
-
ISSN:2304-6732
-
Container-title:Photonics
-
language:en
-
Short-container-title:Photonics
Author:
Liu Junhong12ORCID, Xu Yunfei12, Li Rusong3, Zhang Jinchuan12, Zhuo Ning1, Liu Junqi12ORCID, Wang Lijun12, Cheng Fengmin1, Liu Shuman12ORCID, Liu Fengqi12, Lu Quanyong3, Zhai Shenqiang1
Affiliation:
1. Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China 2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China 3. Division of Quantum Materials and Devices, Beijing Academy of Quantum Information Sciences, Beijing 100193, China
Abstract
The photonic crystal surface-emitting laser (PCSEL) has attracted much attention due to the advantages of a small far-field divergence angle and high output power. Here, we report a high-power terahertz (THz) photonic crystal laser with high beam quality through the optimization of the absorption boundary condition and the introduction of the symmetrically distributed electrodes. Single-mode surface emission at 3.4 THz with the maximum peak output power of 50 mW is demonstrated. Meanwhile, a high symmetric far-field pattern with C6 symmetry and a small divergence angle is achieved. In this device, the integration of the stable single-mode operation, high beam quality and high output power is realized, which may have great significance for practical applications.
Funder
National Natural Science Foundation of China National Key Research and Development Program of China Beijing Municipal Science & Technology Commission Youth Innovation Promotion Association of the Chinese Academy of Sciences
Subject
Radiology, Nuclear Medicine and imaging,Instrumentation,Atomic and Molecular Physics, and Optics
Reference30 articles.
1. Watt-class high-power, high-beam-quality photonic-crystal lasers;Hirose;Nat. Photonics,2014 2. Topological insulator vertical-cavity laser array;Dikopoltsev;Science,2021 3. Real-time terahertz digital holography with a quantum cascade laser;Locatelli;Sci. Rep.,2015 4. Lei, C., Choquette, K.D., Zhou, D., Seurin, J.-F., Xu, G., Zhao, P., Xu, B., Chen, T., Van Leeuwen, R., and Matheussen, J. (2015). Vertical-Cavity Surface-Emitting Lasers XIX, SPIE. 5. High-power VCSEL’s: Single devices and densely packed 2-D-arrays;Grabherr;IEEE J. Sel. Top. Quantum Electron.,1999
|
|