What's the application of optical isolator ?

Optical isolators' applications is to prevent a variety of reasons in its path to the transmission of light of the negative effects of light source and optical path system. Between semiconductor laser source and optical transmission systems, for example, install an optical isolator, can largely reduce the reflected light of the negative effects of spectral power output stability of light source. In high-speed direct modulation and direct detection in optical fiber communication system, after the transfer will generate additional noise, light, degrade the performance of the system, it also need optical isolator to eliminate. Doped optical fiber in optical fiber amplifier at both ends of the glazing isolator, can improve the operation stability of the optical fiber amplifier, without it, after the reflected light will enter the source (laser), the volatility of signal source.In a coherent light long-distance optical fiber communication system, every some distance to install a optoisolator, can reduce the power loss caused by stimulated brillouin scattering. Therefore, the optical isolator in optical fiber communication, optical information processing system, optical fiber sensing and precision optical measurement plays an important role in the system.