The MMIS-13-14-15 from AC Photonics is a Fiber Optic Isolator with Insertion Loss 0.6 to 0.8, Isolation 28 dB, Operating Temperature -20 to 70 Degree C, Optical Power 10 W, Polarization Dependent Loss 0.1 dB. More details for MMIS-13-14-15 can be seen below.