Small-Spot Direct UV Written Fiber Bragg Gratings in Multicore Fiber

Senta L. Jantzen,Rex H. S. Bannerman,Alexander Jantzen,Paolo L. Mennea,Devin H. Smith,James C. Gates,Mohammed El-Hajjar, Lewis J. Boyd,Peter G. R. Smith,Christopher Holmes

2019 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP)（2019）

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摘要

A new method for defining Bragg gratings in optical multicore fiber is presented. Small-Spot Direct UV Writing enable different cores of a multicore fiber to be individually addressed, enabling spectral multiplexing at co-located positions. We demonstrate for the time the inscription of a seven core fiber using Small-Spot Direct UV Writing, achieving low cross talk and evaluating the bend sensitivity of the fiber.

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关键词

Bragg gratings, sensor, nuilticore, shape sensing, fiber

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