公开(公告)号：WO8808547A2

公开(公告)日：1988-11-03

申请号：PCT/US8800783

申请日：1988-03-14

Applicant: HUGHES AIRCRAFT CO

Inventor： RAND STEPHEN C ,  WYSOKI JOSEPH

IPC: G02B6/024 ,  C03B37/027 ,  C03C25/10 ,  G02B6/10

CPC classification number: G02B6/105 ,  C03B37/027 ,  C03B37/02709 ,  C03B2203/02 ,  C03B2203/30 ,  C03C25/1061 ,  C03C25/1063

Abstract: An improved polarization preserving birefringent fiber optic member is provided having cross-sectional circular cladding and core members of soft glasses. A metallic coating of an approximately circular configuration, that is offset from the axis of the core and cladding members, is provided with sufficient thickness to provide an anisotropic variation in compressional strain on the core member to create the anisotropy of the refracted index of the core member for preserving polarization characteristics. The optical fiber can be formed by heating a mechanical composite of a core rod and cladding tube, drawing the core and cladding to form a fused fiber and transporting the drawn fiber through a coating bath to provide the variation in thickness.

公开(公告)号：WO8808547A3

公开(公告)日：1989-04-06

申请号：PCT/US8800783

申请日：1988-03-14

Applicant: HUGHES AIRCRAFT CO

Inventor： RAND STEPHEN C ,  WYSOKI JOSEPH

IPC: G02B6/024 ,  C03B37/027 ,  C03C25/10 ,  G02B6/10

CPC classification number: G02B6/105 ,  C03B37/027 ,  C03B37/02709 ,  C03B2203/02 ,  C03B2203/30 ,  C03C25/1061 ,  C03C25/1063

Abstract: An improved polarization preserving birefringent fiber optic member is provided having cross-sectional circular cladding and core members of soft glasses. A metallic coating of an approximately circular configuration, that is offset from the axis of the core and cladding members, is provided with sufficient thickness to provide an anisotropic variation in compressional strain on the core member to create the anisotropy of the refracted index of the core member for preserving polarization characteristics. The optical fiber can be formed by heating a mechanical composite of a core rod and cladding tube, drawing the core and cladding to form a fused fiber and transporting the drawn fiber through a coating bath to provide the variation in thickness.