Individual inscription of spectrally multiplexed Bragg gratings in optical multicore fibers using small spot direct UV writing

Optics Express
Senta L JantzenChristopher Holmes

Abstract

We have demonstrated the inscription of Bragg gratings into five individual cores of a seven core fiber using small spot direct UV writing. With this technique, we defined spectrally multiplexed Bragg gratings consecutively in separate cores as well as spectrally multiplexed gratings at the same longitudinal location in different cores. The effect of bending on the optical spectrum was evaluated to allow the differentiation between cross-exposure and cross-talk, and an alignment process to reduce cross-exposure by 13 dB was found.

References

Mar 28, 2003·Optics Letters·G M H FlockhartI Bennion
Jan 22, 2015·Optics Express·Emma LindleyJoss Bland-Hawthorn
Feb 1, 2019·Optics Letters·Senta L SchollChristopher Holmes
Oct 2, 2019·Sensors·Oleg V ButovIgor' A Shevtsov

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