Zhengxuan Yang

Apr 16, 2024 | opg.optica.org | Rongqing Xu |Tao Chen |Zhen Zhao |Zhengxuan Yang

Herein we report an electronically controlled tunable fiber-optic attenuator that leverages the microfluidic electro-wetting effect, which enables a fine-tuning of the solid-liquid interface wetting angle to control the micro-reflector, thus regulating the lens fiber coupling efficiency. Theoretical calculations indicated an optical attenuation regulation effect of 0–45.0 dB in the voltage range of 0–30.0 V.