XLD905-50W-M 905nm 50W Near Infrared Laser Diode pulse laser ranging light source uses laminated tunnel junctiontechnology, bonded metal package, can achieve 5ow pulse power output, and theworking pulse is adjustable with width 1-100ns, light source size is 150um *10um;Mainly used for laser ranging, laser sensing, laser radar. With low cost, long reliability, it will be your best choice. Pulse laser diodes are semiconductor devices that produce laser light pulses when electricity is passed through them. They are widely used for various applications, including fiber-optic communication, laser rangefinders, barcode scanners, medical equipment, and military equipment.
905nm 50W Near Infrared Laser Diode Specifications:
Pulsed laser diodes (PLDs) are semiconductor-based devices that emit high-intensity, short-duration pulses of laser light. They are widely used in numerous applications such as optical communication, material processing, biomedical instrumentation, and printing technologies.
| Parameters | Symbol | Unit | Typical Numerical Value |
| Optical Parameter (@25°C) | |||
| central wavelength | λ | nm | 905 |
| tolerance | λo | nm | ± 10 |
| spectral width | △λ | nm | ≤ 5 |
| working mode | Pulsed | ||
| power | Po | W | 50 |
| luminous size | L | μm∙ μm | 150*10 |
| beam-divergence angle | θ⊥ | ° | ≤ 30 |
| θ∥ | ° | ≤ 10 | |
| beam directivity | θ | ° | ≤±3 |
| Electrical Properties (@25°C) | |||
| threshold current | Ith | A | 1 |
| working current | Iop | A | 20 |
| working voltage | Vop | V | 17 |
| working pulse width | t | ns | 100 |
| repetition frequency | f | kHz | 5 |
| duty cycle | D | - | 0.05% |
| Thermal Property | |||
| working temp | Tc | ºC | -40~70 |
| storage temp | Tstg | ºC | -40~85 |
| wavelength temperature coefficient | -- | nm/ºC | 0.28 |
| welding temperature | Ts | ºC | 260 |
905nm 50W Near Infrared Laser Diode Overall Dimensions (unit: mm):
Pulsed laser diodes are composed of a p-n junction that emits laser light when a voltage is applied to the device. The device is activated by the injection of electrons and holes in the p-n junction. The electrons and holes combine to form excited states that emit light when they decay back to their ground states. The decay process is facilitated by feedback from the optical cavity, which is formed by the reflective surfaces at the ends of the laser diode. The feedback from the cavity causes the emi9tted light to amplify, resulting in high-intensity laser pulses.
Features of Pulsed Laser Diodes：
PLDs are characterized by several features that make them suitable for a wide range of applications. The following are some of the key features of pulsed laser diodes:
1. High-intensity: Pulsed laser diodes can emit high-intensity laser pulses, typically in the range of nanoseconds (ns) to picoseconds (ps).
2. Repetition rate: PLDs can generate a high repetition rate of pulses, which can vary from tens to hundreds of kilohertz (kHz).
3. Wavelength: Pulsed laser diodes can generate laser light at specific wavelengths depending on the material used in the p-n junction.
4. Temperature: PLDs are sensitive to temperature changes and require temperature stabilization to maintain consistent operation.
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| 1.Power - Current Relationship | 2.Current - Voltage Relationship |
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| 3.Curve of Spectrum |
4.Wavelength/Temperature Curve |
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5.Wavelength Distribution
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6.Luminous Effect Picture |
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Vertical Divergence Angle
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Horizontal Divergence Angle
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Applications of Pulse Laser Diodes:
Fiber-optic communication: Pulse laser diodes are used in fiber-optic communication to transmit information at high speeds. The laser light is modulated with a digital signal, and the resulting pulses are transmitted through optical fibers.
Laser rangefinders: Pulse laser diodes are used in laser rangefinders to determine the distance between a target and an observer. A laser pulse is fired at the target, and the time taken for the pulse to return is used to calculate the distance.
Barcode scanners: Pulse laser diodes are used in barcode scanners to read barcodes. The laser light is scanned across the barcode, and the resulting reflections are used to decode the barcode.
Medical equipment: Pulse laser diodes are used in medical equipment such as ophthalmic lasers and dermatological lasers. The lasers are used to remove tissue or to coagulate blood vessels.
Military equipment: Pulse laser diodes are used in military equipment such as rangefinders, target designators, and guided missiles. The lasers are used to guide and target the missiles.
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