780nm–940nm Infrared Laser Diodes for Sensing & Detection Systems
The 780nm–940nm Infrared Laser Diode Series provides semiconductor laser sources for optical sensing, detection, measurement, machine vision, and customized infrared equipment.
Unlike visible red, green, blue, and violet laser diodes, infrared laser emission is outside the normal visible range. This makes infrared wavelengths suitable for optical systems where the laser source is intended to work with sensors, detectors, cameras, or other optical components rather than provide a visible positioning reference.
STSZ Laser offers multiple infrared wavelength options for equipment manufacturers, optical system integrators, and OEM customers.
Infrared Wavelength Options
The series covers several commonly used infrared wavelengths:
- 780nm IR laser diode
- 808nm IR laser diode
- 850nm IR laser diode
- 940nm IR laser diode
These wavelengths should not be treated as identical alternatives. The appropriate wavelength depends on the detector, sensor, camera, optical filter, material response, and overall design of the equipment.
For OEM projects, wavelength selection should therefore begin with the requirements of the complete optical system.
780nm–940nm Laser Diodes for Optical Sensing
Infrared laser diodes can be used as an optical emission source in sensing and detection systems.
A typical system may combine the infrared diode with:
IR laser diode → optical lens → target → detector / camera
The laser provides the optical source while the remaining components determine how the emitted light is delivered, detected, and processed.
Potential applications include:
- Optical sensing
- Detection systems
- Machine vision
- Measurement equipment
- Infrared optical instruments
- Sensor systems
- Customized optical equipment
- OEM laser assemblies
The actual application suitability depends on the selected wavelength and the characteristics of the complete optical system.
Choosing Between 780nm, 808nm, 850nm and 940nm
The main difference between the models is their emission wavelength.
When selecting an infrared diode, customers should consider the response characteristics of the receiving device and other optical components.
For example, an OEM system may already specify a particular wavelength because of:
- Detector sensitivity
- Camera response
- Optical filter characteristics
- Lens transmission
- Material interaction
- Existing optical architecture
Therefore, replacing one infrared wavelength with another should only be done after confirming compatibility with the complete system.
Infrared Laser Diodes for Machine Vision
Infrared laser sources can be incorporated into machine vision and optical inspection equipment when the system is designed to operate with infrared illumination.
The diode can be combined with appropriate optics to deliver the required laser beam to the inspection area.
Depending on the equipment architecture, infrared laser illumination may be used as part of a sensing or imaging system rather than as a visible operator reference.
Power Configurations
STSZ Laser provides several power configurations for the infrared diode series.
Available options include:
20mW / 50mW / 100mW / 200mW
The required output power depends on the optical path, working distance, detector requirements, duty cycle, and system design.
The selected diode should be matched with a suitable laser driver and thermal management arrangement.
Package Options
Depending on the wavelength and model, available package configurations include:
- Standard TO-type packages
- Compact 10 × 6mm configurations
The package should be selected according to the mechanical space, mounting method, electrical connection, thermal conditions, and optical-axis requirements of the equipment.
OEM Infrared Laser Diode Integration
The infrared diode can be supplied as a semiconductor source for customers developing customized optical equipment or laser assemblies.
OEM requirements may include:
- 780nm wavelength
- 808nm wavelength
- 850nm wavelength
- 940nm wavelength
- Different optical power levels
- Package selection
- Optical module integration
- Customized mechanical design
- Equipment-specific requirements
- Bulk production supply
For applications requiring a complete laser assembly, the diode can also be integrated into a customized laser module according to the required optical and mechanical configuration.OEM Laser Module Manufacturing
Technical Specifications
| Item | Specification |
|---|---|
| Wavelength | 780nm / 808nm / 850nm / 940nm |
| Laser Type | Infrared Semiconductor Laser Diode |
| Output | Infrared |
| Power Options | 20mW / 50mW / 100mW / 200mW |
| Package | TO / 10 × 6mm options |
| Main Applications | Sensing, detection, machine vision, optical systems |
| Integration | Laser modules / OEM equipment |
| Customization | OEM / ODM available |
Specifications may vary according to the selected wavelength and model. Contact STSZ Laser for detailed technical parameters.
Infrared Laser Diode Safety Consideration
Infrared laser radiation may not be readily visible to the human eye. As a result, the absence of a visible beam does not mean that the optical output is harmless.
The appropriate laser classification, labeling, protective measures, and operating procedures should be determined according to the actual diode, complete laser product, applicable standards, and intended use.
780nm–940nm Infrared Laser Diode FAQ
- What wavelengths are available in the infrared series?
STSZ Laser provides 780nm, 808nm, 850nm, and 940nm infrared laser diode options. - What are infrared laser diodes used for?
Potential applications include optical sensing, detection, machine vision, measurement, and customized infrared optical systems. - How do I choose between 780nm, 808nm, 850nm and 940nm?
Selection depends on the detector or camera response, optical filters, lens transmission, material characteristics, and the requirements of the complete system. - Are infrared laser diodes visible to the human eye?
Infrared wavelengths in this range are outside normal visible vision. The actual visibility and safety characteristics depend on the wavelength and optical output. - What power options are available?
Available configurations include 20mW, 50mW, 100mW, and 200mW depending on the selected model. - What package options are available?
TO-type and 10 × 6mm configurations are available depending on the specific model. - Can infrared laser diodes be used for OEM projects?
Yes. STSZ Laser supplies infrared semiconductor laser sources for customized optical equipment and laser module integration.
Related Products
For visible positioning and alignment applications, explore the Laser Positioning Module series.
For customized laser assemblies and OEM projects:OEM Laser Module Manufacturing
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