Diffraction Grating

Ruled Gratings

Custom blazed groove structures for efficient wavelength separation

Introduction

Ruled gratings are diffraction gratings manufactured by mechanically forming precise grooves on an optical substrate using a controlled ruling process. The carefully defined groove profile enables efficient diffraction performance and allows the grating to be optimized for specific wavelength ranges and optical requirements.

Ruled gratings provide versatile spectral control by allowing optical systems to achieve efficient wavelength separation and precise light dispersion. Their established performance and adaptability make them widely used in applications where stable diffraction efficiency and predictable optical behavior are required.

Applications

  • Monochromators and wavelength selectors
  • Laser wavelength control systems
  • Optical calibration systems

Features & advantages

  • Optimized groove profiles for precise wavelength control
  • Customizable blaze wavelength for specific spectral requirements
  • Flexible groove density options for different wavelength resolutions
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Product specifications

Parameter Specification
Product Type Ruled grating
Dimensions (mm) 12.5 – 100
Thickness (mm) 3 – 10
Groove Density (grooves/mm) 50 – 3600
Blaze Wavelength 250 nm – 10 μm
Diffraction efficiency ≥75% (at blaze wavelength)
Surface Quality 60/40 S/D typical, tighter options available
Coating type Aluminum / gold / silver coatings

Specifications represent typical capabilities for ruled grating. Final parameters are confirmed according to specific optical and grating design requirements.

Technical capabilities & processing options

  • Precision Groove Ruling:
    Controlled ruling processes create accurate groove profiles with consistent spacing and geometry for reliable diffraction performance.
  • Blaze Angle Optimization:
    Groove geometry can be controlled to achieve optimized blaze performance for different wavelength ranges and optical applications.
  • Optical Surface Processing:
    Precision polishing and surface finishing maintain substrate quality and support high-performance diffraction components.
  • Optical Inspection and Verification:
    Inspection procedures verify surface quality, groove characteristics, and optical performance to ensure consistent product quality.

Need a Custom Ruled Grating?

Share your wavelength range, groove density, blaze requirements, and optical specifications. Our team can review grating parameters, coating options, and customization requirements for your application.

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