Eine Laserdiode (auch Halbleiterlaser) ist ein mit der Leuchtdiode (LED) verwandtes Halbleiter-Bauteil, das jedoch Laserstrahlung erzeugt.
In Laserdioden wird ein p-n-Übergang mit starker Dotierung bei hohen Stromdichten betrieben. Die Wahl des Halbleitermaterials bestimmt dabei die emittierte Wellenlänge, wobei heute ein Spektrum von infrarot bis ultraviolett abgedeckt wird.
Die Emission von Licht entsteht durch Rekombinationsprozesse von Elektronen und Löchern am Übergang zwischen p- und n-dotiertem Bereich. Die Endflächen des Bauelements sind teilreflektierend und bilden somit einen optischen Resonator, in dem sich eine stehende Lichtwelle ausbilden kann. Liegt eine Besetzungsinversion vor, kann die stimulierte Emission zum dominierenden Strahlungsprozess werden. Die Laserdiode emittiert dann Laserstrahlung.
Das Erzeugen der Besetzungsinversion geschieht in Laserdioden durch elektrisches Pumpen, ein elektrischer Gleichstrom in Durchlassrichtung sorgt für stetigen Nachschub von Elektronen und Löchern. Der Pumpstrom, bei dem der Laserbetrieb einsetzt, wird auch als Laserschwelle oder Schwellenstrom Ith (von engl. threshold) bezeichnet.
| Artikelnummer | Hersteller | Beschreibung |
|---|---|---|
| LMH6533 | National Semiconductor | Four Channel Laser Diode Driver with Dual Output, LVDS Interface Oscillator |
| LMH6533SP | National Semiconductor | Four Channel Laser Diode Driver with Dual Output, LVDS Interface Oscillator |
| LMH6533SPX | National Semiconductor | Four Channel Laser Diode Driver with Dual Output, LVDS Interface Oscillator |
| EL6279C | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| EL6279CU | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| CXB1549 | Sony Corporation | Laser Diode Driver |
| CXB1549Q | Sony Corporation | Laser Diode Driver |
| CXB1818Q | Sony Corporation | Laser Diode Driver |
| OL395N-80 | electronic componets | High-Power Laser-Diode Coaxial Module |
| SLD326YT-3 | Sony Corporation | High Power Laser Diode |
| SLD327YT-3 | Sony Corporation | High Power Laser Diode |
| SLD342YT-3 | Sony Corporation | High Power Laser Diode |
| SLD343YT-3 | Sony Corporation | High Power Laser Diode |
| SLD344YT-3 | Sony Corporation | High Power Laser Diode |
| X9530 | Xicor Inc. | Temperature Compensated Laser Diode Controller |
| X9530B15I | Xicor Inc. | Temperature Compensated Laser Diode Controller |
| X9530B15I-T1 | Xicor Inc. | Temperature Compensated Laser Diode Controller |
| X9530B15I-T2 | Xicor Inc. | Temperature Compensated Laser Diode Controller |
| X9530V14I | Xicor Inc. | Temperature Compensated Laser Diode Controller |
| TA8573FN | Toshiba Semiconductor | HIGH-FREQUENCY MODULATION LASER DIODE |
| SY88902 | Micrel Semiconductor | LASER DIODE DRIVER WTIH OUTPUT ENABLE |
| SY88902KC | Micrel Semiconductor | LASER DIODE DRIVER WTIH OUTPUT ENABLE |
| SY88902KCTR | Micrel Semiconductor | LASER DIODE DRIVER WTIH OUTPUT ENABLE |
| SY88905 | Micrel Semiconductor | LASER DIODE CONTROLLER WITH |
| SY88905KC | Micrel Semiconductor | LASER DIODE CONTROLLER WITH |
| SY88905KCTR | Micrel Semiconductor | LASER DIODE CONTROLLER WITH |
| SY88922 | Micrel Semiconductor | SDH/SONET 2.5Gbps LASER DIODE DRIVER |
| SY88922KC | Micrel Semiconductor | SDH/SONET 2.5Gbps LASER DIODE DRIVER |
| SY88922KCTR | Micrel Semiconductor | SDH/SONET 2.5Gbps LASER DIODE DRIVER |
| LT050MS | Sharp Electrionic Components | Laser Diode |
| LT050PS | Sharp Electrionic Components | Laser Diode |
| LST0605-FC-A | Agilent(Hewlett-Packard) | Single Mode Connectorized Laser Diode Power) |
| LST0623-SC-A | Agilent(Hewlett-Packard) | Single Mode Connectorized Laser Diode Power) |
| LST0625-SC-A | Agilent(Hewlett-Packard) | Single Mode Connectorized Laser Diode Power) |
| LST0627-SC-A | Agilent(Hewlett-Packard) | Single Mode Connectorized Laser Diode Power) |
| MAX3261 | Maxim Integrated Products | Single Fully Integrated, 1.25Gbps Laser Diode Driver |
| MAX3261CCJ | Maxim Integrated Products | Single Fully Integrated, 1.25Gbps Laser Diode Driver |
| MAX3261ECJ | Maxim Integrated Products | Single Fully Integrated, 1.25Gbps Laser Diode Driver |
| MAX3262 | Maxim Integrated Products | Single Fully Integrated, 155Mbps Laser Diode Driver |
| MAX3263 | Maxim Integrated Products | Single Fully Integrated, 155Mbps Laser Diode Driver |
| MAX3263CAG | Maxim Integrated Products | Single Fully Integrated, 155Mbps Laser Diode Driver |
| EL6276C | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| EL6276CU | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| AD9661A | Analog Devices | Laser Diode Driver with Light Power Control |
| AD9661AKR | Analog Devices | Laser Diode Driver with Light Power Control |
| AD9661AKR-REEL | Analog Devices | Laser Diode Driver with Light Power Control |
| EL6249C | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| EL6249CU | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| EL6253 | Elantec Semiconductor | 3-Channel Laser Diode Driver Oscillator |
| EL6253C | Elantec Semiconductor | 3-Channel Laser Diode Driver Oscillator |
| EL6253CU | Elantec Semiconductor | 3-Channel Laser Diode Driver Oscillator |
| M66510 | Mitsubishi Electric Semiconductor | LASER-DIODE DRIVER |
| M66510FP | Mitsubishi Electric Semiconductor | LASER-DIODE DRIVER |
| M66510P | Mitsubishi Electric Semiconductor | LASER-DIODE DRIVER |
| AD9660 | Analog Devices | Laser Diode Driver with Light Power Control |
| AD9660KR | Analog Devices | Laser Diode Driver with Light Power Control |
| AD9660KR-REEL | Analog Devices | Laser Diode Driver with Light Power Control |
| Q62702-P1678 | Siemens Semiconductor Group | Laser Diode TO-220 Package with FC-connector 0.75 Class Laser Product |
| EL6286C | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| EL6286CU | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| SLD131UL | Sony Corporation | GaAlAs Laser Diode |
| Q62702-P1631 | Siemens Semiconductor Group | Laser Diode TO-220 Package with FC-connector 0.75 Class Laser Product |
| EL6274C | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| EL6274CU | Elantec Semiconductor | 4-Ch Laser Diode Driver Oscillator |
| OL5200N | electronic componets | 1.55 Laser-Diode Module |
| OL5200N-5 | electronic componets | 1.55 Laser Diode Module |
| EL6257 | Elantec Semiconductor | 4-Channel Laser Diode Driver Oscillator |
| EL6257C | Elantec Semiconductor | 4-Channel Laser Diode Driver Oscillator |
| EL6257CU | Elantec Semiconductor | 4-Channel Laser Diode Driver Oscillator |
| M66515 | Mitsubishi Electric Semiconductor | LASER-DIODE DRIVER/CONTROLLER |
| M66515FP | Mitsubishi Electric Semiconductor | LASER-DIODE DRIVER/CONTROLLER |
| EL6273CU | Elantec Semiconductor | 3-Channel Laser Diode Driver w/Oscillator Amplifier |
| EL6245CU | Elantec Semiconductor | 3-Channel Laser Diode Driver w/Oscillator Amplifier |
| Q62702-P358 | Siemens Semiconductor Group | Laser Diode Submount Class Laser Product |
| RLD65MZT2 | Rohm | DVD-ROM, Combination laser diode |
| SLD304XT | Sony | 1000mW High Power Laser Diode |
| SY88822V | Micrel Semiconductor | LASER DIODE DRIVER WITH OUTPUT ENABLE |
| M66512P | Mitsubishi Electric Semiconductor | LASER-DIODE DRIVER |
| M66516FP | Mitsubishi Electric Semiconductor | LASER-DIODE DRIVER/CONTROLLER |
| ML725B16F | Mitsubishi Electric Semiconductor | 2.5Gbps InGaAsP LASER DIODE |
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