Description 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. Specifications Parameter Unit Value Center Wavelength nm 1310 1550 1064 Operating Wavelength Range nm ±40 ±40 ±20 Attenuation Range dB 0.6~60 0.6~60 0.6~60 Max.Insertion Loss dB 0.6 0.6 0.6 Min.Return Loss dB 50 Fiber Type - PM Panda fiber Adjustment Precision dB 0.02 Max.Polarization Dependent Loss dB 0.15 Max.Power Handling mW 500 Operating Temperature ℃ 0 ~ +70 Storage Temperature ℃ -40~+85 Packag Dimensions mm 26x18x8 For device with connector, IL is 0.3dB higher, RL is 5dB lower, ER is 2dB lower; The default connector key is aligned to slow axis;