The MEMS-44-3-5-1 from AGILTRON is a Fiber Optic Switch with Insertion Loss 1.2 - 2.0 dB, Operating Temperature -5 to 70 Degree C, Optical Power 300 - 500 mW, Polarization Dependent Loss 0.15 dB, Storage Temperature -40 to 85 Degree C. More details for MEMS-44-3-5-1 can be seen below.