Lithium Niobate Polarization Splitter Fabricated Using One-Step Diffusion

Author

Chih-Fan Huang ; Chia-Hsing Kang ; Hsiang-Lin Chen ; Wan-Shao Tsai ; Way-Seen Wang

Author_Institution

Grad. Inst. of Photonics & Optoelectron., Nat. Taiwan Univ., Taipei, Taiwan

Volume

27

Issue

10

fYear

2015

fDate

May15, 15 2015

Firstpage

1037

Lastpage

1039

Abstract

Polarization splitters with zinc-nickel and gallium indiffusion optical waveguides fabricated on Z-cut lithium niobate substrates are presented. The device fabrication process needs only one diffusion step and, therefore, is greatly simplified. Experimental results show that, at 1.55-μm wavelength, the extinction ratios for the TE and TM modes are 27.8 and 24.5 dB, respectively.

Keywords

gallium; lithium compounds; optical beam splitters; optical fabrication; optical materials; optical polarisers; optical waveguides; optical wavelength conversion; zinc compounds; Ga; LiNbO₃; TE modes; TM modes; Z-cut lithium niobate substrates; ZnNi; device fabrication; diffusion step; extinction ratios; gallium indiffusion optical waveguides; lithium niobate polarization splitter; one-step diffusion; wavelength 1.55 mum; zinc-nickel; Lithium niobate; Nickel; Optical device fabrication; Optical polarization; Optical waveguides; Zinc; Polarization splitter; diffusion; extinction ratio; gallium; lithium niobate; nickel; zinc;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2405578

Filename

7045596