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.
1020–1040 nm: R ± 0.5% vs. curve; | GDD (R) | < 20 fs² (IBS-coating)
690–1050 nm: R ± 0.25% (goal ± 0.1%) vs. curve (IBS-coating)
Tolerance for transmission: ± 0.2% absolute or ± 10% of target value (IBS-coating)
Every coating type can be optimized
• substrate material
• reflection / transmis-
• angle of incidence
• GDD value
Alternatively we can create
a totally new design for you.