JPS57211789A - Driving method for diode laser - Google Patents
Driving method for diode laserInfo
- Publication number
- JPS57211789A JPS57211789A JP9774381A JP9774381A JPS57211789A JP S57211789 A JPS57211789 A JP S57211789A JP 9774381 A JP9774381 A JP 9774381A JP 9774381 A JP9774381 A JP 9774381A JP S57211789 A JPS57211789 A JP S57211789A
- Authority
- JP
- Japan
- Prior art keywords
- diode
- parallel
- diode laser
- polarity
- laser
- 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
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
-
- 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
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
-
- 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
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
-
- 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
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE:To allow light having two kinds of wavelength to be selectively emitted for preventing destruction due to a backward electromotive force, by a method wherein diode lasers are connected in parallel so as to be opposite in polarity to each other, and the direction of the driving current is changed over. CONSTITUTION:A first diode laser D1 and a second diode laser D2 having an oscillation wavelength different from that of the first diode laser D1 are connected in parallel so as to be opposite in polarity to each other to constitute a parallel diode structure. A laser-driving power source that can be changed over to positive and negative is connected across the parallel diode structure. By changing over the polarity of the power source, the first and second diode lasers D1, D2 are made to selectively emit light having wavelengths different from each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9774381A JPS57211789A (en) | 1981-06-23 | 1981-06-23 | Driving method for diode laser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9774381A JPS57211789A (en) | 1981-06-23 | 1981-06-23 | Driving method for diode laser |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57211789A true JPS57211789A (en) | 1982-12-25 |
Family
ID=14200365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9774381A Pending JPS57211789A (en) | 1981-06-23 | 1981-06-23 | Driving method for diode laser |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57211789A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0808521A1 (en) * | 1995-02-10 | 1997-11-26 | Opto Power Corporation | Laser package with reversed laser diode |
-
1981
- 1981-06-23 JP JP9774381A patent/JPS57211789A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0808521A1 (en) * | 1995-02-10 | 1997-11-26 | Opto Power Corporation | Laser package with reversed laser diode |
EP0808521A4 (en) * | 1995-02-10 | 1998-05-06 | Opto Power Corp | Laser package with reversed laser diode |
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