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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 11 — May. 26, 2008
  • pp: 7832–7841

Fabrication of spatial modulated second order nonlinear structures and quasi-phase matched second harmonic generation in a poled azo-copolymer planar waveguide

Jian Hung Lin, Ngoc Diep Lai, Chau Han Chiu, Chi-Yuan Lin, Georg W. Rieger, Jeff F. Young, Forest Shih-Sen Chien, and Chia Chen Hsu  »View Author Affiliations

Optics Express, Vol. 16, Issue 11, pp. 7832-7841 (2008)

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This work demonstrates that arbitrary types of spatially modulated second-order susceptibility (χ(2)) structures such as 1D and 2D, periodic and quasi-periodic structures can be obtained by using the combination of corona poling and direct laser writing (DLW) techniques. The fabrication technique is based on the photodepoling of azo-dye molecules caused by one-photon or two-photon absorption during the DLW process. Polarization and second harmonic generation (SHG) images of the fabricated structures were measured by electrostatic force microscope and SHG mapping techniques, respectively. Furthermore, quasi-phase-matched (QPM) enhanced SHG from a 1D periodically poled azo-copolymer planar waveguide is demonstrated using an optical parametric oscillator laser by scanning wavelength from 1500 to 1600 nm. The resonant wavelength of the QPM enhanced SHG is peaked at 1537 nm with FWHM≅2.5nm.

© 2008 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Nonlinear Optics

Original Manuscript: March 25, 2008
Revised Manuscript: May 5, 2008
Manuscript Accepted: May 6, 2008
Published: May 15, 2008

Jian Hung Lin, Ngoc Diep Lai, Chau Han Chiu, Chi-Yuan Lin, Georg W. Rieger, Jeff F. Young, Forest Shih-Sen Chien, and Chia Chen Hsu, "Fabrication of spatial modulated second order nonlinear structures and quasi-phase matched second harmonic generation in a poled azo-copolymer planar waveguide," Opt. Express 16, 7832-7841 (2008)

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