Partial Reflectance Plate Beamsplitters
These
beamsplitters provide definite split ratios at a particular laser wavelength.
They are designed for use either at 0° or 45°and are not intended for
use at other wavelengths. Substrate
material is usually BK7 or UV fused silica and the substrates are polished to
laser quality standards.
They
may be used to split a laser beam into separate components or to re-combine
branches of an optical system. Since
both substrates and coatings are made to laser quality standards, these
beamsplitters may be used with high power lasers.
They have a high laser damage threshold.
All
common laser wavelengths are offered: 193, 213, 248, 257, 266, 308, 325, 352,
355, 442, 488, 515, 527, 532, 543, 633, 670, 680, 694, 780, 800, 830, 905, 980,
1047, 1053, 1064, 1300, 1310, 1319, 1540, 1550, 2100, 2940 nm.
Reflectance
can be: 5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 65, 70, 75, 80, 85, 90, 95, 98 or
99 %
Usual
diameters are 10, 12.7, 19.1, 20, 25.4, 30, 38.1 and 50.8 mm but other sizes can
be supplied on request.