The ISOS-14-L-1-2 from AFW Technologies is a Fiber Optic Isolator with Insertion Loss 0.5dB, Isolation 32 - 42 dB, Operating Temperature -5 to 50 Degree C, Optical Power 300 mw, Polarization Dependent Loss 0.05 dB. More details for ISOS-14-L-1-2 can be seen below.