Patent ID: 6295393
Filing Date: 2001-09-25
Classification: G02B,H01S

Abstract:
A polarized light synthesizing apparatus for synthesizing a pair of polarized light beams, which are inputted from a pair of input optical fibers, and outputting a synthesized light beam, which has synthesized the pair of light beams, to an output optical fiber, comprising:a lens assembly comprising,a securing member to secure both ends of said pair of input optical fibers, each input optical fiber serving to propagate a first polarized light having a polarization characteristic different from that of a second polarized light which is propagated by the other optical fiber; anda lens that converts the first and second polarized light, which is emitted from said pair of input optical fibers, into individual collimated beams and outputs the individual collimated beams of the first and second polarized light; anda birefringent member, located downstream of the lens assembly, that synthesizes the individual collimated beams emitted from the lens in such a manner that the individual collimated beams have a common optical axis.