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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 6 — Mar. 15, 2010
  • pp: 877–879

Femtosecond second-harmonic generation in periodically poled lithium niobate waveguides written by femtosecond laser pulses

Zhangchao Huang, Chenghou Tu, Shuanggen Zhang, Yongnan Li, Fuyun Lu, Yaxian Fan, and Enbang Li  »View Author Affiliations


Optics Letters, Vol. 35, Issue 6, pp. 877-879 (2010)
http://dx.doi.org/10.1364/OL.35.000877


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Abstract

We present in this Letter the second-harmonic generation of femtosecond pulses in double-line-written waveguides fabricated in periodically poled lithium niobate (PPLN) with femtosecond laser pulses. In a 10-mm-long sample, a normalized conversion efficiency of 12.6 % W 1 cm 2 has been achieved for 40 fs pump pulses with the wavelengths centered at 1550 nm. Simulation results show that in PPLN waveguides the FWHM of wavelength tuning curve for 40 fs pump pulses is 42 nm, which is 15 times of that for 40 ps pump pulses.

© 2010 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(160.4330) Materials : Nonlinear optical materials
(140.3515) Lasers and laser optics : Lasers, frequency doubled

ToC Category:
Materials

History
Original Manuscript: October 26, 2009
Revised Manuscript: January 9, 2010
Manuscript Accepted: January 27, 2010
Published: March 15, 2010

Citation
Zhangchao Huang, Chenghou Tu, Shuanggen Zhang, Yongnan Li, Fuyun Lu, Yaxian Fan, and Enbang Li, "Femtosecond second-harmonic generation in periodically poled lithium niobate waveguides written by femtosecond laser pulses," Opt. Lett. 35, 877-879 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-6-877

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