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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 14 — Jul. 15, 2006
  • pp: 2190–2192

Narrow-linewidth near-degenerate optical parametric generation achieved with quasi-group-velocity-matching in lithium niobate waveguides

Xiuping Xie, Jie Huang, and M. M. Fejer  »View Author Affiliations


Optics Letters, Vol. 31, Issue 14, pp. 2190-2192 (2006)
http://dx.doi.org/10.1364/OL.31.002190


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Abstract

We demonstrate narrow-linewidth near-degenerate optical parametric generation in reverse-proton-exchange lithium niobate waveguides with quasi-group-velocity-matching, which is realized by using wavelength-selective directional couplers and tight-radius bends. With appropriate designs for 1.6 ps long pump pulses at 785.1 nm we obtained near-degenerate signal (idler) pulses with a time–bandwidth product as low as 1.1, compared with 10.5 for conventional devices without quasi-group-velocity-matching. This improvement in the temporal property is a result of both a pulse compression effect and a filter effect coming from our scheme of quasi-group-velocity-matching.

© 2006 Optical Society of America

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 5, 2006
Manuscript Accepted: May 5, 2006

Citation
Xiuping Xie, Jie Huang, and M. M. Fejer, "Narrow-linewidth near-degenerate optical parametric generation achieved with quasi-group-velocity-matching in lithium niobate waveguides," Opt. Lett. 31, 2190-2192 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-14-2190

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