Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2405578
