JPS57124491A - Coupler for semiconductor laser and optical fiber - Google Patents
Coupler for semiconductor laser and optical fiberInfo
- Publication number
- JPS57124491A JPS57124491A JP1098481A JP1098481A JPS57124491A JP S57124491 A JPS57124491 A JP S57124491A JP 1098481 A JP1098481 A JP 1098481A JP 1098481 A JP1098481 A JP 1098481A JP S57124491 A JPS57124491 A JP S57124491A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- laser
- semiconductor laser
- reflector
- beams
- 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/1068—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using an acousto-optical device
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE:To reduce speckle noises by inserting a supersonic transmitting element between the semiconductor laser and a reflector and also coupling beams from the other side of the semiconductor laser with the optical fiber. CONSTITUTION:The output beams to the reverse side to the optical fiber 6 of the semiconductor laser 1 oscillating at a single wavelength are coupled with the reflector 5 through a lens 2. The supersonic transmitting element 3 is inserted between the lens 2 and the reflector 5 at that time. The beams emitted from the laser 1 transmit the element 3 twice by the reflector 5, the phase is modulated by supersonic waves, and the beams are recombined with the laser 1 again. Accordingly, the laser 1 oscillating originally at a single wavelength is oscillated at a large number of stable wavelengths, speckles are decreased when the output beams of the laser 1 are combined with the optical fiber 6, and the speckle noises are reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1098481A JPS57124491A (en) | 1981-01-26 | 1981-01-26 | Coupler for semiconductor laser and optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1098481A JPS57124491A (en) | 1981-01-26 | 1981-01-26 | Coupler for semiconductor laser and optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57124491A true JPS57124491A (en) | 1982-08-03 |
Family
ID=11765408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1098481A Pending JPS57124491A (en) | 1981-01-26 | 1981-01-26 | Coupler for semiconductor laser and optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57124491A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246883A (en) * | 1987-04-02 | 1988-10-13 | Agency Of Ind Science & Technol | Semiconductor laser device |
-
1981
- 1981-01-26 JP JP1098481A patent/JPS57124491A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246883A (en) * | 1987-04-02 | 1988-10-13 | Agency Of Ind Science & Technol | Semiconductor laser device |
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