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3 October 2019 In line Fabry-Perot cavities manufactured by electric arc fusion of NIR-laser micro-drilled optical fiber flat tips
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Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 112072F (2019) https://doi.org/10.1117/12.2530541
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal
Abstract
The manufacturing of inline Fabry-Perot cavities in standard single mode telecommunication optical fiber is presented. The procedure consists in splicing two optical fiber pigtails, one of them with a micro-drilled hole in its tip, creating an air bubble inside the structure. The initial hole is obtained using near infrared radiation from a Q-switch Nd:YAG laser to open 5-10 micrometers deep cavities by laser ablation and plasma formation processes, and a standard splicing machine is used to fuse the two fibers. The length of the obtained cavities lies around 80-110 micrometers. Preliminary tests as a strain sensor are presented.
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Marta Nespereira, João M. P. Coelho, and José Rebordão "In line Fabry-Perot cavities manufactured by electric arc fusion of NIR-laser micro-drilled optical fiber flat tips", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112072F (3 October 2019); https://doi.org/10.1117/12.2530541
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