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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 18 — Sep. 15, 2008
  • pp: 2038–2040

Coherence of supercontinua generated by ultrashort pulses compressed in optical fibers

J. W. Nicholson, A. D. Yablon, M. F. Yan, P. Wisk, R. Bise, D. J. Trevor, J. Alonzo, T. Stockert, J. Fleming, E. Monberg, F. Dimarcello, and J. Fini  »View Author Affiliations


Optics Letters, Vol. 33, Issue 18, pp. 2038-2040 (2008)
http://dx.doi.org/10.1364/OL.33.002038


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Abstract

Femtosecond fiber lasers together with nonlinear fibers are compact, reliable, all-fiber supercontinuum sources. Maintaining an all-fiber configuration, however, necessitates pulse compression in an optical fiber, which can lead to nonlinearities for subhundred femtosecond, nanojoule pulses. In this work we show that using large-mode-area fibers for pulse compression mitigates the nonlinearity, resulting in compressed pulses with significantly reduced satellite pulses. Consequently, supercontinua generated with these pulses are shown to have as much as a 10 dB increase in coherence fringe contrast. By using a hybrid highly nonlinear fiber–photonic crystal fiber, the continuum can be extended to visible wavelengths while still maintaining high coherence.

© 2008 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 27, 2008
Revised Manuscript: July 14, 2008
Manuscript Accepted: July 21, 2008
Published: September 4, 2008

Citation
J. W. Nicholson, A. D. Yablon, M. F. Yan, P. Wisk, R. Bise, D. J. Trevor, J. Alonzo, T. Stockert, J. Fleming, E. Monberg, F. Dimarcello, and J. Fini, "Coherence of supercontinua generated by ultrashort pulses compressed in optical fibers," Opt. Lett. 33, 2038-2040 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-18-2038


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