Fish & Richardson P.C.
Four-port PM circulator
A four-port circulator includes a first birefringent crystal, a structured polarization rotator, a first birefringent wedge, a second birefringent crystal, a non-reciprocal device, and a second birefringent wedge. The structured polarization rotator is coupled to the first birefringent crystal. The first birefringent wedge is coupled to the structured polarization rotator. The second birefringent crystal is coupled to the first birefringent wedge. The non-reciprocal device is coupled to the second birefringent crystal. The second birefringent wedge is coupled to the non-reciprocal device.
Oplink Communications, Inc.
G G
G02F G02B
inventional additional
Wei-Zhong
Li