Title:
OPTICAL FIBER CONNECTOR
Document Type and Number:
Japanese Patent JP3039852
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the connection loss fluctuation caused by performing and not performing PC coupling, and connection loss fluctuation caused by multiple reflection by constituting an optical fiber connector pulling core sections at the coupling end parts of optical fibers into a clad.
SOLUTION: In order to average a connection loss without performing PC coupling on the end faces of optical fibers to be coupled, the clad is pulled in more than the core on the end face of optical fiber. Namely, the top end position of end face of core is always positioned equally with the top end position of end face of clad or pulled inside more than it. On the end face of optical fiber 10 composed of a core 10a and a clad 10b surrounding it, for example, the core 10a is pulled with respect to the clad 10b while having a recessed curved surface. Otherwise, the clad and the core are formed into continuous recessed curved surface on the end face of optical fiber and the central section of core is most pulled inside. Otherwise, the outer peripheral edge of clad is rounded.
Inventors:
Kouji Kashihara
Hiroshi Kofujita
Hiroyasu Toyooka
Hiroshi Kofujita
Hiroyasu Toyooka
Application Number:
JP33601096A
Publication Date:
May 08, 2000
Filing Date:
December 16, 1996
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
G02B6/38; G02B6/40; (IPC1-7): G02B6/38
Domestic Patent References:
| JP6289254A | ||||
| JP63550A | ||||
| JP2226205A | ||||
| JP4336509A | ||||
| JP7294772A | ||||
| JP8313763A | ||||
| JP5385146U | ||||
| JP11502314A |
Other References:
【文献】米国特許5636298(US,A)
【文献】米国特許5245684(US,A)
【文献】英国特許出願公開1493992(GB,A)
【文献】米国特許5245684(US,A)
【文献】英国特許出願公開1493992(GB,A)
Attorney, Agent or Firm:
Yoshikazu Tani (1 person outside)