근접장 주사 현미경을 이용한 유체 클래딩을 가진 광 도파로의 특성 연구

초록

제8회 광전자 및 광통신 학술회의 (COOC 2001) 논문집, pp. 341-342 (2001. 5. 16~18). *** 무주 리조트, "" We utilized the near-field scanning optical microscope (NSOM) to measure the evanescent field near the core-cladding interface of a channel waveguide with a liquid cladding. Since the cladding region of waveguides is often composed of a solid material, one can not approach the fiber tip close to the core-cladding interface, and not observe the evanescent field from the real devices. Thus we could observe the evanescent field near the interface and understand the propagation characteristics of realistic waveguide devices. This problem can be resolve by filling the core region with the index matching liquid instead of the solid cladding.