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http://dx.doi.org/10.3740/MRSK.2002.12.4.254

Fabrication of High Speed Optical Matrix Wwitch by Ti:Ti:LiNbO3  

Yang, U-Seok (Optical Research Center, Korean Electronics Technology Institute)
Kwak, Yong-Seok (Cominet Corporation)
Kim, Je-Min (Optical Research Center, Korean Electronics Technology Institute)
Yoon, Hyeong-Do (Optical Research Center, Korean Electronics Technology Institute)
Lee, Han-Yeong (Optical Research Center, Korean Electronics Technology Institute)
Yoon, Dae-Ho (Dept. of Advanced Materials Engineering, Sungkyunkwan University)
Publication Information
Korean Journal of Materials Research / v.12, no.4, 2002 , pp. 254-258 More about this Journal
Abstract
To realize channel cross-connecting in optical communications systems, a high speed optical matrix switch was fabricated using z-cut $LiNbO_3$. For switch fabrication was design bending structure and coupling length and four $2{\times}2$ directional couplers were integrated on one substrate far construction of a $4{\times}4$ switch. Single-mode optical waveguides were formed by Ti-diffusion at a wet $O_2$ atmosphere. Ti-diffusion profile, refractive index variation and waveguide morphology were analyzed by Prism coupler and optical microscopy, respectively.
Keywords
Lithium niobate; electro-optic effect; optical switch; optical waveguide; Ti-indiffusion; directional coupler; bending loss; normal mode theory; beam propagation method;
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