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Optical Engineering

Photo-written waveguides in iron-doped lithium niobate crystal employing binary optical masks
Author(s): Peng Zhang; D. X. Yang; Jianlin Zhao; Meirong Wang
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Paper Abstract

Photo-written waveguides employing binary optical masks are investigated in an iron-doped lithium niobate crystal. Planar and Y-branch waveguides are experimentally demonstrated. The index variations along the propagation direction of the writing beam in the crystal are experimentally measured and theoretically analyzed. The influence of the diffraction from the optical masks, which imposes a limitation for the applications of the waveguide fabrication method, is numerically specified. Additionally, the asymmetry of the index distribution in the waveguide region, which is related to the transport process of the photoexcited charge carriers, is revealed and qualitatively explained.

Paper Details

Date Published: 1 July 2006
PDF: 7 pages
Opt. Eng. 45(7) 074603 doi: 10.1117/1.2219443
Published in: Optical Engineering Volume 45, Issue 7
Show Author Affiliations
Peng Zhang, Northwestern Polytechnical Univ. (China)
D. X. Yang, Northwestern Polytechnical Univ. (China)
Jianlin Zhao, Northwestern Polytechnical Univ. (China)
Meirong Wang, Northwestern Polytechnical Univ. (China)

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