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Optics Letters

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  • Vol. 28, Iss. 16 — Aug. 15, 2003
  • pp: 1442–1444

Group-velocity-matched cascaded quadratic nonlinearities of femtosecond pulses in periodically poled MgO:LiNbO3

Satoshi Ashihara, Tsutomu Shimura, Kazuo Kuroda, Nan Ei Yu, Sunao Kurimura, Kenji Kitamura, Jung Hoon Ro, Myoungsik Cha, and Takunori Taira  »View Author Affiliations


Optics Letters, Vol. 28, Issue 16, pp. 1442-1444 (2003)
http://dx.doi.org/10.1364/OL.28.001442


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Abstract

Large nonlinear phase shifts were generated with femtosecond pulses at 1560 nm through cascaded quadratic interactions in periodically poled MgO-doped LiNbO3 . The off-diagonal component of the nonlinear coefficient was utilized for simultaneous quasi phase matching and group-velocity matching. The effective nonlinear refractive index was varied from -2.9×10-14 to +3.3×10-14cm 2/W by tuning the phase-mismatch conditions.

© 2003 Optical Society of America

OCIS Codes
(160.3730) Materials : Lithium niobate
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.5940) Nonlinear optics : Self-action effects
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

Citation
Satoshi Ashihara, Tsutomu Shimura, Kazuo Kuroda, Nan Ei Yu, Sunao Kurimura, Kenji Kitamura, Jung Hoon Ro, Myoungsik Cha, and Takunori Taira, "Group-velocity-matched cascaded quadratic nonlinearities of femtosecond pulses in periodically poled MgO:LiNbO3," Opt. Lett. 28, 1442-1444 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-16-1442

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