Design and simulation of a polymeric variable optical attenuator
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Y-branch is an important optical passive component. It can be used as power splitter and mode conversion. In this paper, a variable optical attenuator was designed using an asymmetric Y-branch. The device was simulated by FDBPM (Finite Difference Beam Propagation Method). It has the characteristics of compact size, large scale dynamic attenuation and low power consumption.
[1] Yong Hyub Won,et al. PLC-type variable optical attenuator operated at low electrical power , 2000 .