Broadband Dielectric Beamsplitter, 50.8 mm, N-BK7, 700-950 nm
$207.00
Ex Tax: $207.00
Available Options
The 20B20BS.2 Broadband Dielectric Beamsplitter is made of N-BK7 glass, 50.8 mm in diameter, 9.4 mm thick, with a surface flatness of λ/10, and coated for 700-950 nm. Our broadband dielectric beamsplitters are designed to provide general purpose laser beam splitting and combining for visible through near infrared applications. Each coating is essentially achromatic across a wide spectral band so that a single optic will work for the entire range of a particular tunable laser, for several laser diode wavelengths, or for most visible laser wavelengths.
feature | |
Angle of Incidence | 45° |
Antireflection Coating | 700-950 nm |
Chamfers | 0.38-1.14 mm face width |
Chamfers Angle Tolerance | 45° ±15° |
Cleaning | See How to Clean Optics |
Clear Aperture | > central 80% of diameter |
Coating Code | BS.2 |
Damage Threshold | 500 W/cm2 CW, 0.5 J/cm2 with 10 nsec pulses, typical |
Diameter | 50.8 mm |
Diameter Tolerance | +0/-0.13 mm |
Durability | MIL-C-675C, moderate abrasion million cycles |
Efficiency | Ravg < 0.75% @ 660-1000 nm |
Material | Grade A N-BK7 |
Surface Flatness | λ/10 at 632.8 nm over the clear aperture |
Surface Quality | 15-5 scratch-dig |
Thickness | 9.4 mm |
Thickness Tolerance | ±0.38 mm |
Wedge | 30 ±15 arc min |