The MMIS-13-14-15-P from AC Photonics is a Fiber Optic Isolator with Insertion Loss 0.6 dB to 0.8 dB, 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-P can be seen below.