Abstract
The present invention is a reflective type optical circulator, wherein an optical reflective device is used to reflect the incident beam from the optical port, so that the reflected beam passes through all optical devices distributed in the optical path again (i.e. various optical crystal), and it^s matched with an appropriate combination of reciprocal and non-reciprocal optical crystal to generate specific linear polarization direction, and the reflected light beam is guided to the next optical port, which has the function of repetitive usage of crystal, reducing the number of crystals, and reducing the length of the optical circulator. On the other hand, all optical ports are disposed on the same side of the optical circulator to achieve the effect of miniaturization and easy usage.