| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High Coupling Efficiency of the Fiber-Coupled Module Based on Photonic-Band-Crystal Laser Diodes |
| Yang Chen1,2,3, Yu-Fei Wang1,2,3,4, Hong-Wei Qu1,2,3, Yu-Fang Zhang2, Yun Liu1,2,3, Xiao-Long Ma1,2,3, Xiao-Jie Guo1,2,3, Peng-Chao Zhao1,2,3, Wan-Hua Zheng1,2,3,4** |
1State Key Laboratory on Integrated Optoelectronics Lab, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
2Laboratory of Solid State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
3College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049
4College of Future Technology, University of Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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Yang Chen, Yu-Fei Wang, Hong-Wei Qu et al 2017 Chin. Phys. Lett. 34 074205 |
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Abstract The coupling efficiency of the beam combination and the fiber-coupled module is limited due to the large vertical divergent angle of conventional semiconductor laser diodes. We present a high coupling efficiency module using photonic-band-crystal (PBC) laser diodes with narrow vertical divergent angles. Three PBC single-emitter laser diodes are combined into a fiber with core diameter of 105 μm and numerical aperture of 0.22. A high coupling efficiency of 94.4% is achieved and the brightness is calculated to be 1.7 MW/(cm$^{2}\cdot$sr) with the injection current of 8 A.
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Received: 17 March 2017
Published: 23 June 2017
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| PACS: |
42.15.Eq
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(Optical system design)
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42.55.Px
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(Semiconductor lasers; laser diodes)
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42.55.Tv
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(Photonic crystal lasers and coherent effects)
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42.62.Cf
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(Industrial applications)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 61535013, 61321063 and 61404133, the National Key Research and Development Program of China under Grant Nos 2016YFB0402203, 2016YFB0401804 and 2016YFA0301102, and the Youth Innovation Promotion Association of Chinese Academy of Sciences under Grant No 2014096. |
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