The Analysis About isolation and insertion Load of Walk-off Type Optical Isolator
Xiang Qin · Optical Communication Technology · 1996
The principle and the configuration of a polarization-independeat wall -off type optical isolator are presented in this paper. The factors infecting isolation and insertion loss are analyzed theoretically and experimentally. The limitation of isolation and insertion loss are calculated quantitatively resulting from material processing error, assemble error and extinction ratio of calcite and Faraday rotator, which provide scientific basis for selecting material,processing and assemble of optical isolator.