| 摘要 |
An optical circulator having a minimum number of optical circulators, resulting in a lowered insertion loss, and a simplified structure for ease of assembly is presented. The optical circulator includes two birefringent crystals separated by a non-reciprocal rotator section. Optical circulators according to this invention exhibit reduced polarization mode dispersion. Additionally, the optical path through the optical circulators are free of epoxy, reducing insertion loss. Additionally, the optical circulator includes alignment prisms which insure that light beams traveling through the circulator are parallel with the optical axis of the circulator. The components of the optical circulator can be manufactured in such a way that there is a reduced need for matching individual components. Additionally, assembly is faster because there is no need to control the linear separation between components.
|
