Sealed enclosing system for coupling an optoelectronic device and an optical fibre

• US 4,192,574 A
• Filed: 04/10/1978
• Issued: 03/11/1980
• Est. Priority Date: 04/13/1977
• Status: Expired due to Term

• Current Assignee: Thomson-CSF
• Original Assignee: Thomson-CSF
• Inventors: Henry, Raymond, Resneau, Jean-Claude, Bouvet, Jean-Victor
• Primary Examiner(s): Corbin, John K.
• Assistant Examiner(s): Lee, John D.
• Application Number:
  US05/895,224
• Time in Patent Office: 701 Days
• Field of Search: 350/96.15, 350/96.17, 350/96.18, 350/96.20, 250/227
• US Class Current: 385/94
• CPC Class Codes: G02B 6/4202 for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
• CPC Class Codes: G02B 6/421 the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
• CPC Class Codes: G02B 6/4212 the intermediate optical element being a coupling medium interposed therebetween, e.g. epoxy resin, refractive index matching material, index grease, matching liquid or gel
• CPC Class Codes: G02B 6/4248 Feed-through connections for the hermetical passage of fibres through a package wall see provisionally also G02B6/4428
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/8592 Applying permanent coating, e.g. protective coating
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 31/0203 Containers; Encapsulations , e.g. encapsulation of photodiodesfor photovoltaic devices H01L31/048; for organic photosensitive devices H10K30/80

Abstract

A sealed enclosing system for coupling an emitting or receiving optoelectronic device with an optical fibre. A metal cap has an optical fibre passing therethrough in a sealed manner. A bellows tube is mounted on a base and thus provides an elastic element for connecting the fibre to an optoelectronic diode mounted on the tube. The seal is completed by a welding of the cap to the base and by passing electric supply connections through the passage ways formed by glass beads.

Claims

1. A sealed system for coupling an optoelectronic device and an optical fiber, comprising:

a first enclosure consisting of a metal cap having, at its top, a sealed passageway for an optical fibre, said cap being welded onto a base;

a second enclosure, located in said first enclosure, consisting of a length of bellows tube closed by a metallic plate at one end and welded to said base at the other end, said base being common to both of said enclosures;

a platform adapted to support said optoelectronic device and being integral with said metallic plate.

2. A system as claimed in claim 1, wherein said common base is bored to allow said second enclosure to be filled by a polymerizable resin.

3. A system as claimed in claim 1, wherein said second enclosure comprises an internal heat dissipator positioned in contact with said base.

4. A system as claimed in claim 1, wherein said common base comprises sealed passageways for conductors adapted to supply the optoelectronic device with electrical polarization and to transmit optoelectronic signals.

5. A system as claimed in claim 1, wherein said platform is supplied with an electrically insulating and thermally conductive disc destined to be inserted between said platform and said optoelectronic device.