Title:
AIRTIGHT SEAL STRUCTURE FOR OPTICAL FIBER LEAD-IN PART
Document Type and Number:
Japanese Patent JPH03259105
Kind Code:
A
Abstract:
PURPOSE:To seal the optical fiber lead-in part airtightly by removing the jacket material of an optical fiber, using a filler in a small hole which is formed in a housing body to an enough diameter for optical axis adjustment, and sealing and fixing the optical fiber. CONSTITUTION:The jacket material 10 is removed previously at the part of the optical fiber 6 positioned in the housing 2. Then a filler bank is formed nearby the small hole 12 formed in the side wall of the housing 2. When the diameter of the small hole 12 is about 1 mm, the optical axis can be adjusted while the optical fiber 6 is set penetrating the small hole 12. Then solder 18is charged between metal film 16 of Au, etc., formed at the part of the optical fiber 6 penetrating the small hole 12 and the small hole 12 to complete the airtight sealing. Consequently, the optical fiber lead-in part can be sealed airtightly while the optical axis is easily adjusted and deterioration in the airtight sealing due to secular change is small.
Inventors:
NAGANUMA NORIHISA
TERAI SEIJI
TAKAMATSU HISASHI
HAKOGI HIROTAKA
TERAI SEIJI
TAKAMATSU HISASHI
HAKOGI HIROTAKA
Application Number:
JP5662790A
Publication Date:
November 19, 1991
Filing Date:
March 09, 1990
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G02B6/36; G02B6/30; G02B6/42; (IPC1-7): G02B6/30; G02B6/36; G02B6/42
Domestic Patent References:
| JPH01229208A | 1989-09-12 | |||
| JPS5852887A | 1983-03-29 | |||
| JPS60195506A | 1985-10-04 | |||
| JPS5685715A | 1981-07-13 | |||
| JPS60242409A | 1985-12-02 | |||
| JPS63231307A | 1988-09-27 | |||
| JPS6352108A | 1988-03-05 |
Attorney, Agent or Firm:
Akira Matsumoto
Previous Patent: WAVEGUIDE TYPE TE-TM MODE SPLITTER
Next Patent: HIGH ELECTRON MOBILITY FIELD EFFECT SEMICONDUCTOR DEVICE
Next Patent: HIGH ELECTRON MOBILITY FIELD EFFECT SEMICONDUCTOR DEVICE