Zhang, Haojie, Healy, Noel, Dasgupta, Sonali, Hayes, John, Petrovich, Marco, Richardson, David and Peacock, Anna
A tuneable multi-core to single mode fiber coupler
IEEE Photonics Technology Letters, 29, (7), . (doi:10.1109/LPT.2017.2675281).
We demonstrate a low loss, wideband multi-core to single-mode fiber coupler using a modified side-polishing technique. The coupler was designed to access light from a single core of the multi-core fiber without disrupting the signal propagation in the remaining cores. The coupling ratio between the two fibers can be continuously tuned over the entire spectral band via a simple mechanical displacement method. We expect that such couplers will be of use for monitoring, splitting, and multiplexing applications in future multi-core communication and sensing systems.
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