The Fiber Optical Attenuator Low back reflection from TTI Fiber Communication Co.,Ltd. is a Fiber Optic Attenuator with Attenuation 1 to 30 dB, Operating Temperature -25 to 75 Degree C, Polarization Dependent Loss =0.1dB, Return Loss PC:=50 UPC: =55 APC: =60 dB, Storage Temperature -40 to 85 Degree C. More details for Fiber Optical Attenuator Low back reflection can be seen below.