Ti:LiNbO 3 를 이용한 초고속 광 매트릭스 스위치 제조

양우석; 곽용석; 김제민; 윤형도; 이한영; 윤대호; W.S. Yang; Y.S. Kwak; J.M. Kim; H.D. Yoon; H.Y. Lee; D.H. Yoon

Korean Journal of Materials Research, Vol.12, No.4, 254-258, April, 2002

DOI10.3740/MRSK.2002.12.4.254 Export Citation

Ti:LiNbO 3 를 이용한 초고속 광 매트릭스 스위치 제조

Fabrication of High Speed Optical Matrix Wwitch by Ti:LiNbO 3

양우석^†, 곽용석¹, 김제민, 윤형도, 이한영, 윤대호²

전자부품연구원 광부품연구 센터
¹(주)커미넷
²성균관대학교 신소재 공학과

W.S. Yang^†, Y.S. Kwak¹, J.M. Kim, H.D. Yoon, H.Y. Lee, and D.H. Yoon²

Optical Telecommunication Components Lab., Electronics Tecnology Institute, Pyungtaek 451-865, Korea
¹Cominet Corporation, Bundang 460-070, Techno-park 151, Korea
²Department of Advanced Materials & Engineering, Sungkyunkwan University, Suwon 440-746, Korea

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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 2×2 directional couplers were integrated on one substrate far construction of a 4×4 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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