Optical waveguides – With disengagable mechanical connector – Structure surrounding optical fiber-to-fiber connection
Patent
1992-05-07
1993-05-25
Gonzalez, Frank
Optical waveguides
With disengagable mechanical connector
Structure surrounding optical fiber-to-fiber connection
385 71, 385 77, G02B 638
Patent
active
052147304
ABSTRACT:
A multifiber optical connector plug capable of realizing low reflection and low insertion loss, without using the refractive index matching material. The multifiber optical connector plug includes a connector plug member made of a plastic material, having a connecting facet on which endfaces of the optical fibers to be connected with other optical fibers are arranged in a transverse direction between the guide pin insertion holes, with the endfaces of the optical fibers projecting out of the connecting facet, the connecting facet being inclined with respect to an axial direction along optical axes of the optical fibers by an angle which is larger than a total reflection critical angle of light beams transmitted through the optical fibers. The connecting facet may have a flat surface shape or a convex ellipsoidal surface shape. A multifiber optical connector can be formed by a pair of such multifiber optical connector plugs with spring member for pressing the multifiber optical connector plugs toward each other in the axial direction and guide pins for aligning the multifiber optical connector plugs.
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patent: 5136681 (1992-08-01), Takahashi
S. Nagasawa et al.; A High-Performance Single-Mode Multifiber Connector Using Oblique and Direct Endface Contact between Multiple Fibers Arranged in a Plastic Ferrule; IEEE Photonics Technology Letters vol. 3, No. 10, Oct. 1991, New York, pp. 937-939.
W. C. Young et al.; Loss and Reflectance of Standard Cylindrical-Ferrule Single Mode Connectors Modified by Polishing a 10.degree. Oblique Endface Angle; IEEE Photonics Technology Letters vol. 1, No. 12, Dec. 1989, pp. 461-463.
Sakate et al.; Ultra High Density 50-Fiber Connector; The Transactions of the I.E.C.E. of Japan E70, Jul. 1987, No. 7, Tokyo, Japan, pp. 621-622.
Ashiya Fumihiro
Nagasawa Shinji
Satake Toshiaki
Gonzalez Frank
Nippon Telegraph and Telephone Corporation
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