Fabrication of integrated Ti:LiNbO3 waveguide polarizer

Vadim Dobrusin; Shlomo Ruschin

doi:10.1117/1.3046714

Fabrication of integrated Ti:LiNbO₃ waveguide polarizer

Vadim Dobrusin^*, Shlomo Ruschin

^*Corresponding author for this work

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The design and fabrication of an integrated waveguide polarizer in z-cut LiNbO₃ crystals are reported. Single-polarization guiding is achieved by careful selection of Ti diffusion parameters exploiting the transverse electric/transverse magnetic (TE/TM) refractive index anisotropy. Fabricated Ti:LiNbO₃ waveguide polarizers of 1.5cm length exhibit less than 0.2-dB/cm propagation loss at TM and 33-dB extinction ratio as measured at 1.55-μm wavelength.

Original language	English
Article number	120504
Journal	Optical Engineering
Volume	47
Issue number	12
DOIs	https://doi.org/10.1117/1.3046714
State	Published - 2008

Keywords

diffusion
integrated optics
lithium niobate
polarizer
waveguides

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10.1117/1.3046714

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AB - The design and fabrication of an integrated waveguide polarizer in z-cut LiNbO3 crystals are reported. Single-polarization guiding is achieved by careful selection of Ti diffusion parameters exploiting the transverse electric/transverse magnetic (TE/TM) refractive index anisotropy. Fabricated Ti:LiNbO3 waveguide polarizers of 1.5cm length exhibit less than 0.2-dB/cm propagation loss at TM and 33-dB extinction ratio as measured at 1.55-μm wavelength.

KW - diffusion

KW - integrated optics

KW - lithium niobate

KW - polarizer

KW - waveguides

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Fabrication of integrated Ti:LiNbO₃ waveguide polarizer

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