FR2448274B1 - - Google Patents
Info
- Publication number
- FR2448274B1 FR2448274B1 FR7902764A FR7902764A FR2448274B1 FR 2448274 B1 FR2448274 B1 FR 2448274B1 FR 7902764 A FR7902764 A FR 7902764A FR 7902764 A FR7902764 A FR 7902764A FR 2448274 B1 FR2448274 B1 FR 2448274B1
- Authority
- FR
- France
- 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.)
- Expired
Links
Classifications
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- 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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
-
- 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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/504—Laser transmitters using direct modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/564—Power control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Led Devices (AREA)
- Semiconductor Lasers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7902764A FR2448274A1 (fr) | 1979-02-02 | 1979-02-02 | Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7902764A FR2448274A1 (fr) | 1979-02-02 | 1979-02-02 | Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2448274A1 FR2448274A1 (fr) | 1980-08-29 |
| FR2448274B1 true FR2448274B1 (US06168776-20010102-C00028.png) | 1982-10-01 |
Family
ID=9221549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7902764A Granted FR2448274A1 (fr) | 1979-02-02 | 1979-02-02 | Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2448274A1 (US06168776-20010102-C00028.png) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2494514A1 (fr) * | 1980-11-14 | 1982-05-21 | Lignes Telegraph Telephon | Dispositif de stabilisation de la puissance de sortie d'un module emetteur pour systeme de transmission sur fibre optique |
| FR2495870A1 (fr) * | 1980-12-09 | 1982-06-11 | Thomson Csf | Dispositif de protection d'une diode laser |
| FR2524230B1 (fr) * | 1982-03-26 | 1986-01-10 | Lignes Telegraph Telephon | Systeme de transmission d'informations sur une voie de service du type fibre optique |
| US4621376A (en) * | 1983-04-28 | 1986-11-04 | Kabushiki Kaisha Toshiba | Driving apparatus for stabilizing burst light output |
| DE3608930A1 (de) * | 1986-03-18 | 1987-09-24 | Standard Elektrik Lorenz Ag | Verfahren zur regelung der optischen leistung eines lasers und schaltung zur ausuebung des verfahrens |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4009385A (en) * | 1976-03-22 | 1977-02-22 | Bell Telephone Laboratories, Incorporated | Laser control circuit |
| JPS5851435B2 (ja) * | 1976-05-25 | 1983-11-16 | 富士通株式会社 | 発光素子の駆動方式 |
| US4109217A (en) * | 1976-12-10 | 1978-08-22 | Bell Telephone Laboratories, Incorporated | Stabilization circuit for junction lasers |
| GB1563944A (en) * | 1977-03-29 | 1980-04-02 | Post Office | Imjection lasers |
-
1979
- 1979-02-02 FR FR7902764A patent/FR2448274A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2448274A1 (fr) | 1980-08-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |