The 650-nm variable optical attenuator based on polymer/silica hybrid waveguide
Yu Yue-Yang1, Sun Xiao-Qiang1, 2, †, , Ji Lan-Ting1, He Guo-Bing1, Wang Xi-Bin1, 2, Yi Yun-Ji1, 2, Chen Chang-Ming1, 2, Wang Fei1, 2, Zhang Da-Ming1, 2
Schematic diagram of (a) cross-sectional view, and (b) top view of designed 650-nm optical attenuator.