Omega Optical, LLC products

Diffraction Gratings - Echelle Gratings

Omega Optical - 31.6 Groove, 63° Echelle Grating, 12.5 X 25 mm, 6 mm Thickness

The 31.6 groove per millimeter, 63-degree echelle optical grating is designed for advanced spectroscopic applications. It features dimensions of 12.5 x 25 mm with a thickness of 6 mm, making it suitable for precision optical setups. Constructed from low CTE borosilicate, this grating ensures minimal thermal expansion, maintaining performance across a temperature range of -50°C to +200°C. The component is precision cut with a parallelogram angle of 90° ±0.50°, ensuring accurate alignment in optical systems. The optical surface quality is rated at 60-40, and the grating is aluminum-coated for enhanced reflectivity at 90%. It also boasts a damage threshold of 250 watts/cm², making it robust for high-power laser applications.