The SSR730 from TOPTICA Photonics is a Fiber Optic Isolator with Optical Power 40 W, 4 kW/cm2, Isolation 35 to 43 dB, Wavelength 710 to 750 nm (Tunable), Operating Temperature 15 to 40 Degree C, Storage Temperature 0 to 60 Degree C. More details for SSR730 can be seen below.