저손실 $Ti:LiNbO_3$ 광도파로제작 및 BPM 해석

BPM Analysis and Preparation of Low Loss $Ti:LiNbO_3$ Optical Waveguide

  • 김성구 (전자부품종합기술연구소) ;
  • 윤형도 (전자부품종합기술연구소) ;
  • 윤대원 (전자부품종합기술연구소) ;
  • 박계춘 (목포대학교 공과대학 전기공학부) ;
  • 이진 (목포대학교 공과대학 전기공학부)
  • 발행 : 1998.05.01

초록

We investigated the preparation and guided-mode properties of $Ti:LiNbO_3$ waveguides which were fabricated by Ti in-diffusion. The diffusion method to reduce the Li out-diffusion was proposed. The optical guided-mode and propagation loss based on butt-coupling pigtailed with PMF-input were measured. How to improve the polishing grade of waveguide endfaces is newly proposed in this paper. To show the mode propagations, the BPM simulations of channel waveguide are described.

키워드

참고문헌

  1. NTT R&D v.44 no.7 Waveguide-type high-speed LiNbO₃optical switches Osamu Mitomi;Hiroshi Miyazawa;Kazuto Noguchi
  2. IEEE Trans. on Components, Hybrids and Manufacturing Tech. v.13 no.4 Optical Components The new challenge in packaging Michael R.;Matthews, Braian M.;Macddold;Keith R. Preston
  3. in Tech. Digest PS'90 Ultra fast photonic packet switch with optical output buffer Shimazu, Y.;Tsukada, M.;Kikuchi, S.
  4. 월간전자부품 LiNbO₃수동광부품기술 김성구;윤형도;윤대원
  5. in Tech. Dig. OEC'94 20Gbit/s- 3000㎞ straight-line soliton transmissioin beyond Gordon-Haus limits Nakazawa, M.;Suzuki, K.;Kubota, H.;Yamada, E.;Kimura, Y.
  6. Electronics Letters v.22 no.14 Thin film polarizers for Ti:LiNbO₃waveguides at λ=1.3㎛ Ctyroky, J.;Henning, H. J.
  7. J. Appl. Phy. v.49 no.7 Optical properties in titanium diffused LiNbO₃strip waveguyides Fukuma, M.;Noda, J.;Iwasaki, H.
  8. Appl. Phys. Lett. v.51 no.6 Low-loss optical waveguides in titanium tantalate by vapor diffusion O. Eknoyan;D. W. Yoon;H. F. Taylor
  9. Appl. Optics v.27 no.23 Insertion loss reduction bewteen single-mode fibers and diffused channel waveguides Jacques Albert;Gar Lam Yip