Chinese Optics Letters, 2019, 17 (9): 090601, Published Online: Jul. 24, 2019  

Thermal expanded core ultraviolet fiber for optical cavity mode matching Download: 856次

Author Affiliations
1 CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
2 CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
Abstract
We have demonstrated a mode matching method between two different fibers by a hybrid thermal expanded core technique, which can be applied to match the modes of fiber-based Fabry–Pérot cavities. Experimentally, this method has achieved an expansion of the ultraviolet fiber core by 3.5 times while keeping fundamental mode propagation. With the experiment parameters, the fundamental mode coupling efficiency between the fiber and micro-cavity can reach 95% for a plano-concave cavity with a length of 400 μm. This method can not only have potential in quantum photonics research but also can be applied in classical optical fields.

Xin-Xia Gao, Jin-Ming Cui, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo. Thermal expanded core ultraviolet fiber for optical cavity mode matching[J]. Chinese Optics Letters, 2019, 17(9): 090601.

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