The 1050 1053nm High Power Optical Circulator 10W from OF-Link Communications is a Fiber Optic Circulator with Insertion Loss 1.3 to 1.6 dB, Isolation 22 to 25 dB, Operating Temperature -5 to 50 Degree C, Optical Power 500 to 10000 mW, Polarization Dependent Loss 0.2 dB. More details for 1050 1053nm High Power Optical Circulator 10W can be seen below.