Sawyer Law Group LLP
Method and system for splitting or combining optical signal
A method and system for providing a splitter/combiner is disclosed. The splitter/combiner includes a first birefringent wedge having a first optic axis and a first wedge angle and a second birefringent wedge having a second optic axis and a second wedge angle. The second birefringent wedge is optically coupled with the first birefringent wedge. The second wedge angle is complementary to the first wedge angle. The second optic axis is perpendicular to the first optic axis such that an extraordinary signal for the first birefringent wedge is an ordinary signal for the second birefringent wedge. The first and second birefringent wedges establish a first path for a first portion of a first optical signal and establish a second path for a second portion of the first optical signal. The first path and the second path are separated by an angle. The first optical signal travels from the first birefringent wedge to the second birefringent wedge. The first birefringent wedge and the second birefringent wedge also combine a second optical signal travelling along the first path with a third optical signal travelling along the second path. The second optical signal and the third optical signal travel from the second birefringent wedge to the first birefringent wedge.
Oplink Communications, Inc.
G G G
G02B G02B G02B
inventional inventional inventional
Yanfeng Wei Zhong
Yang Li