wavelengths
 

Partial Reflectors

In the Ti:Sapphire range and other bands, tightly toleranced partial reflectors are needed to split the beams or to couple out a certain proportion while keeping the GDD under control.

Examples

If not mentioned otherwise, all values and diagrams are given

... for the standard substrate material used in the described wavelength area (mostly Fused Silica or CaF2).

... without consideration of the rear surface.

... with EBE coating technique for a good cost-performance ratio.

Customized coatings are available for all types.

 

–––– dashed lines show the zoomed curve with the stated magnification

R 83% 1020-1040 nm / 0° low GDD
[B-11074]R 83% 1020-1040 nm / 0° low GDD

1020–1040 nm: R ±0.5% vs. curve; | GDD (R) | < 20 fs² (IBS-coating)

R 99% 690-1050 nm / 20° p low GDD
[B-11214]R 99% 690-1050 nm / 20° p low GDD

690–1050 nm: R ±0.25% (goal ±0.1%) vs. curve (IBS-coating)

T 1-25% 680-1010 nm / 0° low GDD
[B-11263]T 1-25% 680-1010 nm / 0° low GDD

Tolerance for transmission: ±0.2% absolute or ±10% of target value (IBS-coating)

 top