JPS55164803A - Coupling method of semiconductor laser and optical fiber - Google Patents
Coupling method of semiconductor laser and optical fiberInfo
- Publication number
- JPS55164803A JPS55164803A JP7297779A JP7297779A JPS55164803A JP S55164803 A JPS55164803 A JP S55164803A JP 7297779 A JP7297779 A JP 7297779A JP 7297779 A JP7297779 A JP 7297779A JP S55164803 A JPS55164803 A JP S55164803A
- Authority
- JP
- Japan
- Prior art keywords
- face
- optical fiber
- light source
- light
- respect
- 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
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
- G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE:To enable the inexpensive removal of the unstability of a light source owing to reflected light by inclining the end face of an optical fiber with respect to the optical axis of a lens. CONSTITUTION:Light emitted from a light source 1 enters an optical fiber 4 through lenses 2, 3 of spherical or aspherical faces. At this time, the end face 5 of the optical fiber 4 is inclined by theta1 with respect to the face perpendicular to the central axis 6. If the laser light source and the fiber are coupled in this way, a greater portion of the light enters the optical fiber 4, but about 4% reflects from the end face 5. This reflected light 8 returns to the place deviated from the light emitting face of the laser light source 1. Hence, the unstability of the light source owing to the reflected light may be eliminated. Here, theta1 is suitably 2 deg.-4 deg.. The similar effect is also obtainable even by using the optical fiber 4 with its end face 5 being made perpendicular to the central axis 6 and incliding said end face 5 with respect to the optical axis 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7297779A JPS55164803A (en) | 1979-06-12 | 1979-06-12 | Coupling method of semiconductor laser and optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7297779A JPS55164803A (en) | 1979-06-12 | 1979-06-12 | Coupling method of semiconductor laser and optical fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55164803A true JPS55164803A (en) | 1980-12-22 |
Family
ID=13504949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7297779A Pending JPS55164803A (en) | 1979-06-12 | 1979-06-12 | Coupling method of semiconductor laser and optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55164803A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6015618A (en) * | 1983-07-08 | 1985-01-26 | Olympus Optical Co Ltd | Endoscope |
JPH0473706A (en) * | 1990-07-16 | 1992-03-09 | Hitachi Constr Mach Co Ltd | Back-talk effect preventing type optical fiber |
JPH08148755A (en) * | 1994-11-25 | 1996-06-07 | Nec Corp | Plane emitting laser device and its manufacture |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5238939A (en) * | 1975-09-23 | 1977-03-25 | Nippon Telegr & Teleph Corp <Ntt> | Optical coupler |
JPS5569115A (en) * | 1978-11-20 | 1980-05-24 | Mitsubishi Electric Corp | Optical coupling device |
-
1979
- 1979-06-12 JP JP7297779A patent/JPS55164803A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5238939A (en) * | 1975-09-23 | 1977-03-25 | Nippon Telegr & Teleph Corp <Ntt> | Optical coupler |
JPS5569115A (en) * | 1978-11-20 | 1980-05-24 | Mitsubishi Electric Corp | Optical coupling device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6015618A (en) * | 1983-07-08 | 1985-01-26 | Olympus Optical Co Ltd | Endoscope |
JPH0473706A (en) * | 1990-07-16 | 1992-03-09 | Hitachi Constr Mach Co Ltd | Back-talk effect preventing type optical fiber |
JPH08148755A (en) * | 1994-11-25 | 1996-06-07 | Nec Corp | Plane emitting laser device and its manufacture |
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