Diffraction Gratings for Telecommunication - DUV to IR

CASTECH offers high-performance diffraction gratings designed for the telecommunication industry, spanning from deep ultraviolet (DUV) to infrared (IR) wavelengths. These gratings are crafted using advanced projection photolithography, holographic, and ion etching technologies to ensure high diffraction efficiency and uniformity.

Product Features:

• Materials: Fused silica or ULE for low absorption and superior stability; other optical glass available upon request.
• Grating Types: Transmission or reflection grating.
• Line Density: Options include 940, 966.2, 1200, and up to 3000 lines/mm.
• Line Density Tolerance: ± 0.5 lines/mm.
• Wavelength Range: 1525-1575 nm.
• Central Wavelength: 1550 nm.
• Angle of Incidence (AOI): Littrow or customized.
• Optical Polarization: TE/TM.
• Diffraction Efficiency: ≥ 94.0%.
• Clear Aperture: ≥ 95%.
• Wavefront Distortion: λ/4 @ 632.8 nm.
• Surface Quality: 40-20 S/D.
• Parallelism: 0.1°.
• Coating Options: Gold (Au) or dielectric coatings.

Applications:

• Telecommunication: Ideal for Wavelength Selective Switches (WSS) and other optical communication devices.

Advantages:

• Customization: Custom dimensions and shapes are available to meet specific requirements.
• High Volume Production: Solutions available from prototype building to high volume production.
• Superior Performance: High diffraction efficiency and uniformity for reliable optical communication performance.

Specifications:

Why Choose CASTECH Diffraction Gratings?

• Advanced Fabrication: Employing state-of-the-art technologies for precision and high performance.
• Customization: Tailored solutions to meet your specific telecommunication needs.
• Reliability: High diffraction efficiency and stability ensure optimal performance in demanding applications.

For further information or to discuss your custom requirements, please contact us.