The FOS22 from Flyin Optronics is a Fiber Optic Switch with Insertion Loss 0.6 - 0.8 dB, Operating Temperature -20 to 70 Degree C, Optical Power =500 mW, Polarization Dependent Loss 0.05 dB, Storage Temperature -40 to 85 Degree C. More details for FOS22 can be seen below.