Optical Parametric Oscillators (OPO) also convert radiation of femtosecond lasers and allow tunable lasing in other wavelength ranges (see here). This conversion introduces more optical components into the total system and consequently more GDD that has to be managed. The diagrams demonstrate some examples of GDD optimized OPO coatings.
750-850 nm: Tp > 96%; 980-1620 nm: Rs,avg > 99.8%; 1750-4500 nm: Tp,avg > 80% (IBS-coating)
532 nm: R < 5%; 700-1000 nm: R > 99.9%; 1100-2100 nm: T > 90% (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.