Design and simulation of a polymeric variable optical attenuator

2004 
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.
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