HAN, YOUNG-GEUN Chang-Seok Kim Lee, Sang Bae 2024-01-13T08:02:20Z 2024-01-13T08:02:20Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/104450 English Tunable optical add-drop multiplexer based on evanescent field coupling with long-period fiber gratings Conference 1 OFC 2006 OFC 2006 US