Non-silica microstructured optical fibers for mid-IR supercontinuum generation from 2 µm – 5 µm

Jonathan H. V. Price; Tanya M. Monro; Heike Ebendorff-Heidepriem; Francesco Poletti; Vittoria Finazzi; Julie Y. Y. Leong; Periklis Petropoulos; Joanne C Flanagan; Gilberto Brambilla; Xian Feng; David J. Richardson

doi:10.1117/12.660942

23 February 2006 Non-silica microstructured optical fibers for mid-IR supercontinuum generation from 2 μm - 5 μm

Jonathan H. V. Price, Tanya M. Monro, Heike Ebendorff-Heidepriem, Francesco Poletti, Vittoria Finazzi, Julie Y. Y. Leong, Periklis Petropoulos, Joanne C Flanagan, Gilberto Brambilla, Xian Feng, David J. Richardson

Author Affiliations +

Proceedings Volume 6102, Fiber Lasers III: Technology, Systems, and Applications; 61020A (2006) https://doi.org/10.1117/12.660942
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

We have performed numerical simulations to investigate the optimization of compound glass microstructured optical fibers for mid IR supercontinuum generation beyond the low loss transmission window of silica, using pump wavelengths in the range 1.55-2.25 mm. Large mode area fibers for high powers, and small core fiber designs for low powers, are proposed for a variety of glasses. Modeling results showed that for Bismuth and lead oxide glasses, which have nonlinearities ~10 x that of silica, matching the dispersion profile to the pump wavelength is essential. For chalcogenide glasses, which have much higher nonlinearities, the dispersion profile is less important. The pump pulses have duration of <1 ps, and energy <30 nJ. The fiber lengths required for generating continuum were <40 mm, so the losses of the fibers were not a limiting factor. Compared to planar rib-waveguides or fiber-tapers, microstructured fiber technology has the advantages of greater flexibility for tailoring the dispersion profile over a broad wavelength span, and a much wider possible range of device lengths.

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Jonathan H. V. Price, Tanya M. Monro, Heike Ebendorff-Heidepriem, Francesco Poletti, Vittoria Finazzi, Julie Y. Y. Leong, Periklis Petropoulos, Joanne C Flanagan, Gilberto Brambilla, Xian Feng, and David J. Richardson "Non-silica microstructured optical fibers for mid-IR supercontinuum generation from 2 μm - 5 μm", Proc. SPIE 6102, Fiber Lasers III: Technology, Systems, and Applications, 61020A (23 February 2006); https://doi.org/10.1117/12.660942

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