Patent ID: 6791751
Filing Date: 2004-09-14
Classification: G02B

Abstract:
A three-port optical polarization combiner installed among a first optical port, a second optical port, and a third optical port, the second optical port being disposed on the same side as the third optical port, the three-port optical polarization combiner comprising:a non-spherical lens, which is installed on the same side as the second optical port and the third optical port for receiving beams with orthogonal polarizations output from the second optical port and the third optical port and deviating their output directions; a wedge crystal, which receives beams with orthogonal polarizations output from the non-spherical lens and deviating their output directions; and a birefringent crystal, which is in direct contact with the wedge crystal and installed on the same side as the first optical port for receiving beams with orthogonal polarizations output from the wedge crystal and combining them into the first optical port.