A VOA(variable optical attenuator) is presented based on thermo optic polymer,in which a bypassing guide was adopted to improve attenuating efficiency and lower crosstalk as well.

• 提出一种旁路结构聚合物热光可变光衰减器 (variable optical attenuator；VOA)的设计 ；采用旁路波导可提高衰减效率并降低串扰 .