T-1000-1040-31.8x24.8-94 Finisar

High Efficiency Pulse Compression Transmission Grating T-1000-1040 Series T-1000-1040 series lithographically patterned diffraction transmission grating is designed to be used in demanding industrial applications. It is characterized by high efficiency, low polarization sensitivity and high power handling. Gratings produced by LightSmyth undergo extensive quality assurance, have proven reliability track record and competitively priced. The polarization independent transmission grating has 1000 lines/mm and designed to operate near 1040 nm central wavelength at 31.3 angle of incidence (AOI). Extended wavelength range performance and angular sensitivity information is provided below. 100 100 98 95 96 90 94 85 92 80 90 75 88 70 86 65 S S pol 84 60 P P pol 82 55 Average 80 50 1.01 1.04 1.07 20 25 30 35 40 Wavelength (m) AOI (deg) Typical absolute diffraction efficiency at AOI 31.3 * Diffraction efficiency at 1000 nm as a function of AOI * Extended operational range: The grating may operate over broader wavelength range provided that suitable anti-reflective coating and angle of incidence is used. The plot below shows simulated performance* over extended range assuming fixed input angle (designed Littrow angle of 31.3), not accounting for AR coating losses. Optimal input angle for each wavelength is shown on the right. 100 40 80 35 60 30 40 S 25 20 P Average 0 20 0.4 0.9 1.4 850 950 1050 1150 1250 Wavelength (m) Wavelength (nm) Typical absolute diffraction efficiency at AOI 31.3 * Optimal input angle for each wavelength (Littrow condition) * simulated performance shown (for guidance only) Di raction E ciency (%) Di raction E ciency (%) Littrow Angle (degrees) Di raction E ciency (%)Input Beam High Efficiency Pulse Compression Transmission Grating T-1000-1040 Series Optical Description Value Units Line Density 1000.0 Lines/mm Line Density Uniformity 0.001 Lines/mm 1 Angle of Incidence (AOI) 31.3 1 Wavelength Range 1040 20 nm Optimal polarization Any 2 Diffraction Efficiency 94 (average polarization) % 1 Notes: Optical grating performance will remain substantially similar over a 5 variation in angle of incidence. 2 Worst case in the operational wavelength range for average polarization. Mechanical Dimension tolerances 0.2 for grating size and width Substrate Thickness 0.675 0.050 mm or 0.95+/- 0.05 mm Material Fused silica, dielectric layers 3 Scratch/Dig 60/40 standard, 40/20 and 20/10 custom 3 Note: As per MIL-PRF-1380B in the clear aperture no requirements outside of the clear aperture. Substrate dimension options 4 4 5 5 Part Number Substrate width, mm Substrate height, mm Clear aperture width, mm Clear aperture height, mm T-1000-1040-3212-95 31.8 12.3 30.8 11.3 T-1000-1040-3225-94 31.8 24.8 30.8 23.8 T-1000-1040-13012 130 12.3 125 11.3 T-1000-1040-13025 130 24.8 125 23.8 Custom dimensions Any rectangle fitting within 135 mm diameter circle (e.g. 130x20 mm) 4 Notes: Width is perpendicular to grating grooves, height is along the grating grooves. 5 Clear aperture is centered on the substrate. Transmission Typical Optical Layout Grating The transmission grating is designed to operate in Littrow configuration, where the angle of incidence and diffraction are the same for the central operational wavelength. Light is dispersed in the plane perpendicular to the grooves. Incidence Angle Diraction Angle LightSmyth Technologies www.LightSmyth.com Tel + 1-541-431-0026 2016 LightSmyth Technologies. All rights reserved. LightSmyth is a pending trademark of Finisar Corporation. Features and specifications are subject to change without notice. 12/16 Diracted Beam