JPS57171307A - Optical fiber coupler connecting light emitter and optical fiber - Google Patents

Optical fiber coupler connecting light emitter and optical fiber

Info

Publication number
JPS57171307A
JPS57171307A JP56055865A JP5586581A JPS57171307A JP S57171307 A JPS57171307 A JP S57171307A JP 56055865 A JP56055865 A JP 56055865A JP 5586581 A JP5586581 A JP 5586581A JP S57171307 A JPS57171307 A JP S57171307A
Authority
JP
Japan
Prior art keywords
optical fiber
diode
face
light emitter
size
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56055865A
Other languages
Japanese (ja)
Inventor
Shuichi Oota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56055865A priority Critical patent/JPS57171307A/en
Publication of JPS57171307A publication Critical patent/JPS57171307A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
    • G02B6/4203—Optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms

Abstract

PURPOSE:To increase the coupling factor between an optical fiber and a light emitting diode and to increase the light receiving region, by increasing the diamters of both the core and cladding parts at the end of the optical fiber toward each end face. CONSTITUTION:Both the core and cladding parts 10 and 20 have a size equal to a normal optical fiber at the base end part respectively. These parts 10 and 20 are, however, formed so that each diameter is incresed toward a light emitting diode 5. Thus the diameter of the part 10 is set equal to or larger than that of the diode 5. The end face of the part 10 contacts with a window 8 provided to a case 7, and the window 8 has a size in accordance with the size of the end face of the part 10. As a result, the greater part of the light delivered from the diode 5 can be led to the part 10. Thus the coupling factor is increased between the diode 5 and the optical fiber.
JP56055865A 1981-04-14 1981-04-14 Optical fiber coupler connecting light emitter and optical fiber Pending JPS57171307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56055865A JPS57171307A (en) 1981-04-14 1981-04-14 Optical fiber coupler connecting light emitter and optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56055865A JPS57171307A (en) 1981-04-14 1981-04-14 Optical fiber coupler connecting light emitter and optical fiber

Publications (1)

Publication Number Publication Date
JPS57171307A true JPS57171307A (en) 1982-10-21

Family

ID=13010957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56055865A Pending JPS57171307A (en) 1981-04-14 1981-04-14 Optical fiber coupler connecting light emitter and optical fiber

Country Status (1)

Country Link
JP (1) JPS57171307A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188509A (en) * 1985-02-16 1986-08-22 Nippon Hoso Kyokai <Nhk> Optical coupling device
EP0683410A1 (en) * 1994-05-17 1995-11-22 SEIKOH GIKEN Co., Ltd. Optical fiber light coupling interface with an enlarged incident surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188509A (en) * 1985-02-16 1986-08-22 Nippon Hoso Kyokai <Nhk> Optical coupling device
EP0683410A1 (en) * 1994-05-17 1995-11-22 SEIKOH GIKEN Co., Ltd. Optical fiber light coupling interface with an enlarged incident surface

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