1200nm, 25mm Diameter, Low GDD Dichroic Shortpass Ultrafast Filter

Product Details Reduced Thickness for Limited GDD Broad Transmission and Reflection Ranges Ideal for Ultrafast Laser Applications Controlled GDD Specification Using In-House Metrology TECHSPEC Low GDD Dichroic Shortpass Ultrafast Filters feature thin substrates and a low group delay dispersion (GDD) coating, making them ideal for use with ultrafast laser sources. Designed for a 45° angle of incidence and covering a range of wavelengths, these spectral filters can be used with Ti:sapphire, Nd:doped, and Yb:doped fiber or glass lasers, as well as with optical parametric oscillators and amplifiers. TECHSPEC Low GDD Dichroic Shortpass Ultrafast Filters are ideal for ultrafast laser applications including multi-photon microscopy, nonlinear fluorescence, and femtosecond stimulated Raman spectroscopy. Please contact us if your application requires an ultrafast optical filter with a custom size or wavelength range. Note: These filters are optimized for high spectral performance rather than high Laser Induced Damage Thresholds (LIDT). A typical LIDT for these filters is 1 J/cm 2 @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value. Specifications General Type: Dichroic Filter Physical & Mechanical Properties Diameter (mm): 25.00 Thickness (mm): 1.05 ±0.1 Dimensional Tolerance (mm): +0.0/-0.2 Optical Properties Angle of Incidence (°): 45 Cut-Off Wavelength (nm): 1,200.00 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) Coating: Hard Coated P-Polarization Transmission (%): >80 Reflection (%): >97 Average Polarization Reflection Wavelength (nm): 1260 – 1560 S-Polarization Transmission (%): >80 Surface Quality: 60-40 Transmission (%): >85 Average Polarization Transmission Wavelength (nm): 624 – 1152 Transmitted Wavefront, RMS: λ/4 Slope Factor (%): 3.00 Cut-Off Tolerance (%): ±2 S-Polarization Reflection (%): >95 P-Polarization Reflection (%): >95 Coating Specification: Surface 1: Hard Dielectric Sputtered Surface 2: AR Coated Wavelength Range (nm): 624 – 1560 GDD Specification (Transmission): 0 ±100fs 2 @ 840 – 1152nm 0 ±500fs 2 @ 624 – 1152nm Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 235: Compliant ×