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Proceedings Paper

Non-silica microstructured optical fibers for mid-IR supercontinuum generation from 2 µm – 5 µm
Author(s): 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
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Paper 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.

Paper Details

Date Published: 23 February 2006
PDF: 15 pages
Proc. SPIE 6102, Fiber Lasers III: Technology, Systems, and Applications, 61020A (23 February 2006); doi: 10.1117/12.660942
Show Author Affiliations
Jonathan H. V. Price, Univ. of Southampton (United Kingdom)
Tanya M. Monro, Univ. of Adelaide (Australia)
Heike Ebendorff-Heidepriem, Univ. of Adelaide (Australia)
Francesco Poletti, Univ. of Southampton (United Kingdom)
Vittoria Finazzi, Univ. of Southampton (United Kingdom)
Julie Y. Y. Leong, Univ. of Southampton (United Kingdom)
Periklis Petropoulos, Univ. of Southampton (United Kingdom)
Joanne C Flanagan, Univ. of Southampton (United Kingdom)
Gilberto Brambilla, Univ. of Southampton (United Kingdom)
Xian Feng, Univ. of Southampton (United Kingdom)
David J. Richardson, Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 6102:
Fiber Lasers III: Technology, Systems, and Applications
Andrew J. W. Brown; Johan Nilsson; Donald J. Harter; Andreas Tünnermann, Editor(s)

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