25.4mm Dia., 800nm T, 400nm R 45° Ti:sapphire Ultrafast Harmonic Separator

Product Details Separates Ultrafast Harmonic Wavelengths Ultrafast Beamsplitter Coating with Low GDD <λ/10 Wavefront Distortion Designs for Ti:sapphire and Yb:doped Femtosecond Lasers TECHSPEC Ultrafast Harmonic Separators, also known as Ultrafast Harmonic Beamsplitters, are used to reflect the second or third harmonic of femtosecond lasers while transmitting the fundamental pulse. The reflective surface is designed to have high reflectivity and a low Group Delay Dispersion (GDD) of ±20fs 2 to minimize pulse dispersion. The back surface is coated with an anti-reflection coating to enhance the transmission of the fundamental light. TECHSPEC Ultrafast Harmonic Separators provide low wavefront distortion and feature high quality, thin UV fused silica substrates with 10-5 surface quality. Designs for separating the harmonics of 800nm and 1030nm (Ti:sapphire and Yb:doped fiber) lasers are available. Please contact us if your application requires an Ultrafast Harmonic Separator designed for custom wavelengths. Specifications General Type: Harmonic Beamsplitter Physical & Mechanical Properties Clear Aperture (%): 80 Clear Aperture CA (mm): 20.32 Construction: Dichroic Diameter (mm): 25.40 +0.00/-0.10 Parallelism (arcmin): <3 Thickness (mm): 3.18 ±0.20 Optical Properties Angle of Incidence (°): 45 Coating Specification: S1: R>99% @ 376 – 425nm @ 45° AOI T>98% @ 700 – 900nm @ 45° AOI S2: R avg <1% @ 700 - 900nm Reflection Wavelength (nm): 400 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) Surface Flatness (P-V): λ/8 Surface Quality: 10-5 Transmission Wavelength (nm): 800 GDD Specification: S1: GDD r = ±20fs 2 @ 376 - 425nm @ 45° AOI Regulatory Compliance RoHS 2015: Compliant × Reach 205: Compliant × Certificate of Conformance: View ×