Beamsplitter Compensation Plate, Fused Silica, 25mm Dia, NIR

Product Details λ/10 Fused Silica Substrates AR Coated for VIS and NIR Options Designed for use with TECHSPEC λ/10 Plate Beamsplitters TECHSPEC Beamsplitter Compensation Plates are designed to equalize the optical path length in systems using plate beamsplitters at a 45° angle of incidence. Manufactured from precision fused silica, these windows ensure both transmitted and reflected beams experience the same material thickness, preserving phase integrity and wavefront quality. When paired with TECHSPEC λ/10 Plate Beamsplitters , compensation plates help minimize dispersion and maintain high interference contrast in demanding optical systems. TECHSPEC Beamsplitter Compensation Plates feature a 30 arcmin wedge to minimize internal interference and back reflections making these compensators are an excellent choice for precision applications. These compensator plates are ideal for interferometry, metrology, and spectroscopy applications requiring precise beam path matching. When used in Michelson and other interferometers, beamsplitters can cause small differences in optical path length and dispersion due to their thickness. Compensation plates can correct for this difference and are especially useful in broadband systems. When selecting a compensation plate, the compensation plate should be of the same substrate and thickness as the beamsplitter used to ensure the correct adjustment in path length. Specifications Physical & Mechanical Properties Bevel: Protective as needed Clear Aperture (%): 90 Clear Aperture CA (mm): 22.50 Diameter (mm): 25.00 +0.00/-0.10 Edges: Fine Ground Thickness (mm): 3.00 ±0.20 Wedge Angle (arcmin): 30 ±1 Optical Properties Angle of Incidence (°): 45 Coating: 45 ° AOI BBAR (700-1100nm) Coating Specification: S1 & S2: R abs ≤ 2.0% from 700-1100nm @ 45° AOI R avg ≤ 1.0% from 700-1100nm @ 45° AOI Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) Surface Flatness (P-V): λ/10 @ 632.8nm Surface Quality: 20-10 Wavelength Range (nm): 700 – 1100 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 253: Compliant ×