Photo-written waveguides in iron-doped lithium niobate crystal employing binary optical masks

Peng Zhang; D. X. Yang; Jianlin Zhao; Meirong Wang

doi:10.1117/1.2219443

1 July 2006 Photo-written waveguides in iron-doped lithium niobate crystal employing binary optical masks

Peng Zhang, D. X. Yang, Jianlin Zhao, Meirong Wang

Author Affiliations +

Optical Engineering, Vol. 45, Issue 7, 074603 (July 2006). https://doi.org/10.1117/1.2219443

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.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Peng Zhang, D. X. Yang, Jianlin Zhao, and Meirong Wang "Photo-written waveguides in iron-doped lithium niobate crystal employing binary optical masks," Optical Engineering 45(7), 074603 (1 July 2006). https://doi.org/10.1117/1.2219443

Published: 1 July 2006

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