Optical Variable Attenuator
TW3303 - Techwin(China) Industry Co., Ltd (Techwin)
The Perfect Handhold Tester Series Optical Variable Attenuator TW3303 TW3303 handhold optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, there, thereforeTW3303 can be used in the digital system of communication devices (such as: PHD, SDH) and also in the system of adopting analog modulation (CATV