PM Manual Variable Optical Attenuator:the PM Manual Variable Optical Attenuator is designed and manufactured to reduce the output optical power, get the power suitable. It is with low insertion loss, high extinction ration, high return loss and low Adjustment Precision,The PM Attenuator is widely apllied at fiber laser ,fier CWDM/DWDM/OADM communication system.千赢国际专业研爆发产PM VOA,工业级PM VOA,是一个专业的PM VOA厂家,有很好的PM VOA价格。千赢国际专业研爆发产的PM VOA广泛应用于航天、航空、电力、铁路、医疗、交通、通信、等各大领域。