Structured Manufacturing Data (2026)

Light Source (e.g., Laser Diode)

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Light Source (e.g., Laser Diode) used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Light Source (e.g., Laser Diode) is characterized by the integration of Semiconductor Chip and Package/Casing. In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor (e.g., Gallium Arsenide, Indium Phosphide) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An optical component that generates and emits light, typically coherent or specific-wavelength illumination, for sensing applications.

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Product Specifications

Technical details and manufacturing context for Light Source (e.g., Laser Diode)

Definition
Within an Optical Sensor Head, the Light Source (e.g., Laser Diode) is the critical component responsible for generating the optical signal used for measurement, detection, or analysis. It provides the necessary illumination that interacts with the target, and the resulting reflected, transmitted, or scattered light is then captured and processed by other sensor elements (like detectors or photodiodes) to derive information about the target's properties, position, or state.
Working Principle
Converts electrical energy into light energy. For a laser diode, this involves stimulating emission of photons through electron-hole recombination within a semiconductor p-n junction under forward bias, producing coherent, monochromatic, and directional light. Other light source types (e.g., LEDs) operate on similar electroluminescence principles but typically produce incoherent, broader-spectrum light.
Common Materials
Semiconductor (e.g., Gallium Arsenide, Indium Phosphide), Metal (for casing/contacts), Glass/Epoxy (for lens/window)
Technical Parameters
  • Central Wavelength - The primary wavelength of light emitted, critical for sensor compatibility and target interaction. (nm) Per Request
Components / BOM
  • Semiconductor Chip Part
    The active region where electron-hole recombination generates light.
    Material: Semiconductor (e.g., GaAs, InP)
  • Package/Casing Part
    Provides mechanical protection, heat dissipation, and electrical connections.
    Material: Metal (e.g., TO-can), Ceramic, or Plastic
  • Lens/Window Part
    Shapes, collimates, or focuses the emitted light beam.
    Material: Glass, Plastic, or Epoxy
  • Lead Pins Part
    Provide electrical connections for power input.
    Material: Metal (e.g., Kovar, Copper alloy)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Light Source (e.g., Laser Diode).

laser diode for optical sensing applications semiconductor light source for electronics manufacturing gallium arsenide laser diode components coherent light source for industrial sensors precision optical illumination for computer manufacturing

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Optical Sensor Head
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 2 bar (typical for sealed packages)
other spec: Wavelength stability: ±0.1 nm, Output power: 1 mW to 500 mW, Beam divergence: 5° to 30°
temperature: -40°C to +85°C (operating), -55°C to +100°C (storage)
Media Compatibility
✓ Clean dry air/nitrogen environments ✓ Optical fiber coupling systems ✓ Vacuum-sealed optical assemblies
Unsuitable: High humidity/condensing environments without hermetic sealing
Sizing Data Required
  • Required wavelength (nm) and spectral width
  • Desired optical output power (mW) and modulation frequency
  • Beam quality requirements (M² factor) and divergence angle

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Catastrophic Optical Damage (COD)
Cause: Thermal runaway due to excessive current, poor heat sinking, or optical feedback causing localized overheating and melting of the semiconductor material.
Gradual Output Power Degradation
Cause: Dark line defect formation and facet degradation from electromigration, oxidation, or contamination over time, accelerated by high operating temperatures and current densities.
Maintenance Indicators
  • Significant, sudden drop in optical output power or complete failure during operation.
  • Visible discoloration, darkening, or physical damage (e.g., burn marks, cracks) on the laser diode facet or housing when inspected under appropriate magnification.
Engineering Tips
  • Implement strict current and temperature control: Use precision constant current drivers with soft-start circuits and maintain junction temperature well below the maximum rated value using active cooling (e.g., thermoelectric coolers) and proper thermal interface materials.
  • Prevent optical feedback and electrostatic discharge (ESD): Employ optical isolators and anti-reflection coatings to minimize back-reflections into the diode cavity, and enforce rigorous ESD protection protocols (grounding, handling, packaging) throughout the component's lifecycle.

Compliance & Manufacturing Standards

Reference Standards
IEC 60825-1:2014 - Safety of laser products ISO 11146-1:2021 - Laser beam parameters ANSI Z136.1-2022 - Safe use of lasers
Manufacturing Precision
  • Wavelength: +/- 2 nm
  • Output power: +/- 5%
Quality Inspection
  • LIV (Light-Current-Voltage) testing
  • Beam profile analysis

Factories Producing Light Source (e.g., Laser Diode)

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the key applications of laser diodes in computer and electronic manufacturing?

Laser diodes are essential for precision sensing, optical data transmission, barcode scanning, alignment systems, and quality control inspection in electronics production lines.

How does the semiconductor material affect laser diode performance?

Gallium Arsenide and Indium Phosphide semiconductors determine the wavelength, efficiency, and thermal stability. GaAs typically produces infrared light ideal for sensing, while InP offers specific wavelength ranges for specialized applications.

What maintenance considerations are important for industrial laser diodes?

Regular thermal management monitoring, proper current regulation, lens cleaning, and protection from environmental contaminants ensure optimal performance and longevity in manufacturing environments.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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