Material Versatility

• Material Range: From DUV to IR, offering flexibility across various wavelengths.
• Low Absorption: Fused silica or ULE with low absorption and superior stability.
• Custom Options: Other optical glasses available upon request for tailored solutions.

Customizable Parameters

• Dimension and Shapes: Custom dimensions and shapes to suit specific requirements.
• Wafer Type: Choose between Plano or Prism for diverse applications.
• Grating Type: Transmission or reflection gratings for varied optical setups.
• Line Density: Ranging from 940 to 3000 lines/mm with tight tolerances.

Optical Performance

• Wavelength Range: Designed for 1525-1575nm range with a central wavelength of 1550nm.
• Angle of Incidence: Littrow or Customized angles to optimize performance.
• Polarization: TE/TM options available for precise control over polarization.
• High Efficiency: Achieves over 94.0% diffraction efficiency for optimal signal management.
• Wavefront Distortion: Maintains λ/4@632.8nm for accurate wavefront control.
• Surface Quality: 40-20 S/D for high-quality optical performance.
• Parallelism: Ensures precise alignment with parallelism less than 0.1°.

Coating Options

• Coating Choices: Choose between Au or Dielectric coatings to suit specific applications.

Advanced Fabrication

• State-of-the-Art Technology: Utilizes projection photolithography, holographic, and ion etching for precise realization of grating designs.
• High Diffraction Efficiency: Ensures superior performance ideal for Wavelength Selective Switches (WSS) and other telecommunication applications.
• Custom Solutions: From prototype building to high-volume production, customized solutions available to meet diverse needs.

CASTECH's High Efficiency Telecommunication Gratings offer unmatched precision and performance for optical communication systems. With customizable options and superior fabrication techniques, they cater to the evolving demands of the industry, ensuring seamless integration and optimal signal management.