The 500 W Fiber to Free Space Isolator from Advanced Fiber Resources (Zhuhai) Ltd. is a Fiber Optic Isolator with Optical Power 500 W (Average), Isolation 20 to 38 dB, Insertion Loss 0.4 dB, Wavelength 1064 nm, Return Loss 50 dB. More details for 500 W Fiber to Free Space Isolator can be seen below.