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Updated: Jul 9, 2026

Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
Efficient broadband intracore grating LP(01)-LP(02) mode converters for chromatic-dispersion compensation
Abstract:
LP(01)-LP(02) mode converters based on UV-written intracore gratings have been fabricated for chromatic-dispersion compensation. The mode converters operate in transmission at wavelengths near 150 nm with spectral bandwidths of 14-25 nm and coupling efficiencies of as much as 90%. A large negative dispersion of -335 ps/(nm km) is obtained for a compensator consisting of the mode converter and a 1490-m-long few-mode fiber. The compensator shows negative dispersion over a wavelength region of 5 nm. Its figure of merit is estimated to be 370 ps/(nm dB).
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