Industry-Verified Manufacturing Data (2026)

Diffraction Grating

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Diffraction Grating 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 Diffraction Grating is characterized by the integration of Substrate and Grating Surface. In industrial production environments, manufacturers listed on CNFX commonly emphasize Glass construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An optical component with a periodic structure that splits and diffracts light into several beams traveling in different directions.

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Product Specifications

Technical details and manufacturing context for Diffraction Grating

Definition
A diffraction grating is a critical component within an optical spectrometer that disperses incoming light into its constituent wavelengths by creating constructive interference at specific angles. It serves as the wavelength-separating element that enables spectral analysis by spatially separating different colors or wavelengths of light.
Working Principle
When light strikes the grating's periodic surface pattern (typically parallel grooves or lines), it undergoes diffraction. The constructive interference of diffracted waves at specific angles depends on the wavelength, grating spacing, and incident angle, allowing different wavelengths to be directed to different positions for detection.
Common Materials
Glass, Fused silica, Metal (for reflective gratings)
Technical Parameters
  • Grating density or groove frequency (lines/mm) Customizable
Components / BOM
  • Substrate
    Provides structural support and optical surface for grating pattern
    Material: Glass or fused silica
  • Grating Surface
    Contains periodic pattern of grooves or lines that diffract light
    Material: Aluminum coating (for reflective gratings) or etched glass
  • Protective Coating
    Prevents damage to grating surface from environmental factors
    Material: Dielectric coating or protective film
Engineering Reasoning
400-1100 nm wavelength, 0.1-10 mW incident power, 15-25°C operating temperature
Grating groove damage at >50 mW/mm² power density, structural deformation at >80°C, diffraction efficiency drop below 70% at design wavelength
Design Rationale: Thermal expansion mismatch between substrate (fused silica, CTE 0.55×10⁻⁶/K) and coating (aluminum, CTE 23.1×10⁻⁶/K) causing groove distortion; photon-induced surface damage at power densities exceeding ablation threshold
Risk Mitigation (FMEA)
Trigger UV radiation exposure at 193 nm wavelength exceeding 100 mJ/cm² fluence
Mode: Coating degradation and grating efficiency reduction below 60%
Strategy: Dielectric multilayer coating with HfO₂/SiO₂ stacks providing 99.5% reflectivity at 193 nm
Trigger Mechanical vibration at frequencies matching grating resonance (typically 500-2000 Hz) with acceleration >5 g
Mode: Periodic structure misalignment causing beam steering error >0.1 mrad
Strategy: Kinematic mounting with 6-axis adjustment and active vibration isolation using piezoelectric actuators

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Diffraction Grating.

high-resolution diffraction grating for spectroscopy custom reflective metal diffraction grating fused silica diffraction grating for lasers optical component for beam splitting applications precision diffraction grating for electronic manufactur

Applied To / Applications

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

Optical Spectrometer
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Spectrometer Unit
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 bar (vacuum compatible with proper mounting)
other spec: Wavelength range: 200-2000 nm, Groove density: 50-3600 lines/mm, Damage threshold: 0.5-5 J/cm² (pulsed)
temperature: -50°C to +150°C (typical for coated glass substrates)
Media Compatibility
✓ Laser spectroscopy systems ✓ Monochromators and spectrometers ✓ Telecom wavelength division multiplexing
Unsuitable: High particulate environments (dust/sand) that can damage grating surface
Sizing Data Required
  • Required wavelength range (nm)
  • Desired spectral resolution or groove density (lines/mm)
  • Beam diameter and required aperture size (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Surface contamination and fouling
Cause: Accumulation of dust, oils, or particulates on the grating surface, leading to reduced diffraction efficiency, scattering, and signal degradation. Often caused by improper handling, inadequate environmental controls, or exposure to contaminants during operation.
Mechanical damage or misalignment
Cause: Physical impacts, thermal stress, or improper mounting causing scratches, cracks, or angular displacement of the grating. This results in distorted diffraction patterns, wavelength inaccuracies, or complete failure. Root causes include shock/vibration exposure, thermal cycling beyond design limits, or installation errors.
Maintenance Indicators
  • Noticeable decrease in diffraction efficiency or signal intensity output compared to baseline measurements
  • Visible scratches, haze, or discoloration on the grating surface under inspection lighting
Engineering Tips
  • Implement strict handling protocols using cleanroom gloves and tools only, and maintain controlled environments (temperature, humidity, and particulate levels) during both storage and operation
  • Use kinematic or precision mounting systems to minimize stress, and regularly verify alignment with calibration sources while avoiding thermal shocks during operation

Compliance & Manufacturing Standards

Reference Standards
ISO 10110-7:2017 (Optics and photonics - Preparation of drawings for optical elements and systems - Part 7: Surface imperfection tolerances) ASTM E903-20 (Standard Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres) DIN 58196-2:2018 (Optical components - Diffraction gratings - Part 2: Definitions and parameters)
Manufacturing Precision
  • Groove spacing: +/-0.1 nm
  • Surface flatness: λ/10 at 632.8 nm
Quality Inspection
  • Spectroscopic efficiency measurement
  • Surface quality inspection (scratch-dig per MIL-PRF-13830B)

Factories Producing Diffraction Grating

Verified manufacturers with capability to produce this product in China

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✓ 93% Supplier Capability Match Found

S Sourcing Manager from Germany Mar 01, 2026
★★★★★
"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Diffraction Grating meets all ISO standards."
Technical Specifications Verified
P Procurement Specialist from Brazil Feb 26, 2026
★★★★☆
"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The Diffraction Grating arrived with full certification. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
T Technical Director from Canada Feb 23, 2026
★★★★★
"Great transparency on the Diffraction Grating components. Essential for our Computer, Electronic and Optical Product Manufacturing supply chain."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

11 sourcing managers are analyzing this specification now. Last inquiry for Diffraction Grating from Poland (1h ago).

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Frequently Asked Questions

What are the main applications of diffraction gratings in computer and electronic manufacturing?

Diffraction gratings are essential in optical data storage, fiber optic communications, laser systems, and spectral analysis equipment used in semiconductor manufacturing and electronic device testing.

How does the choice between glass and fused silica substrates affect grating performance?

Glass substrates offer cost-effectiveness for general applications, while fused silica provides superior thermal stability, lower thermal expansion, and higher UV transmission for precision optical systems and laser applications.

What protective coatings are recommended for industrial diffraction gratings?

Common protective coatings include dielectric coatings for enhanced reflectivity, aluminum with magnesium fluoride overcoat for durability, and gold coatings for infrared applications, all providing environmental protection and performance optimization.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Computer, Electronic and Optical Product Manufacturing sector.

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