JPS5669886A - Semiconductor luminous device - Google Patents
Semiconductor luminous deviceInfo
- Publication number
- JPS5669886A JPS5669886A JP14826979A JP14826979A JPS5669886A JP S5669886 A JPS5669886 A JP S5669886A JP 14826979 A JP14826979 A JP 14826979A JP 14826979 A JP14826979 A JP 14826979A JP S5669886 A JPS5669886 A JP S5669886A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- projected
- spherical lens
- optical fiber
- thickness
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
- H01S5/02326—Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE:To obtain high coupling efficiency to an optical fiber by decreasing deflection from a spherical lens formed in the case when installing an up-side-up. CONSTITUTION:A heat sink 5 is projected from an end surface of a luminous section 3 of a semiconductor laser, and a spherical lens 2 is placed on a projecting section 5a and glued to the luminous section 3. Projecting length L is made approximate equal to the thickness t of the laser 1 or slight larger than the thickness (t). A radius of the lens 2 is made approximate similar to the dimensions (t). If a diameter of the lens 2 is 150mum and (t) is 80mum, coupling efficiency does not lower remarkably because the deflection of beams projected is about 4 deg. and is smaller than an angle of light receiving of an optical fiber. When the projected beams of a small spot are required, the spherical lens may be formed in a small diameter and placed on a necessary pedestal, and an optical axis may be adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14826979A JPS5669886A (en) | 1979-11-12 | 1979-11-12 | Semiconductor luminous device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14826979A JPS5669886A (en) | 1979-11-12 | 1979-11-12 | Semiconductor luminous device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5669886A true JPS5669886A (en) | 1981-06-11 |
Family
ID=15448984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14826979A Pending JPS5669886A (en) | 1979-11-12 | 1979-11-12 | Semiconductor luminous device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5669886A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012212734A (en) * | 2011-03-30 | 2012-11-01 | Nichia Chem Ind Ltd | Semiconductor laser device |
JP2017054883A (en) * | 2015-09-08 | 2017-03-16 | シャープ株式会社 | Optical element, optical apparatus, and projection apparatus |
-
1979
- 1979-11-12 JP JP14826979A patent/JPS5669886A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012212734A (en) * | 2011-03-30 | 2012-11-01 | Nichia Chem Ind Ltd | Semiconductor laser device |
JP2017054883A (en) * | 2015-09-08 | 2017-03-16 | シャープ株式会社 | Optical element, optical apparatus, and projection apparatus |
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