High power lasers, as well as short runs of singlemode fiber, can overdrive your receiving devices, resulting in damage or destruction of expensive equipment. Protect your system with this MU/UPC Male to Female Fiber Optic Attenuator. This fixed attenuator enables you to reduce optical power to a specific level that is safe for your receiving equipment. You can order these attenuators in 1dB attenuation increments, from 1 to 20dB. A power meter and light source can help you determine the specific amount of attenuation that your system requires. This attenuator has a male to female design, which enables it to be used in many applications without requiring additional adapters. The doped fiber within the attenuator allows for operation at both 1310nm and 1550nm wavelengths. This attenuator also features a UPC polished endface to minimize back reflections.