wavelengths
 

OPO coatings

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.

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

HT 750-850 nm HR 980-1620 nm HT 1750-4500 nm / 4° GDD opt.
[B-11613]HT 750-850 nm HR 980-1620 nm HT 1750-4500 nm / 4° GDD opt.

750-850 nm: Tp > 96%; 980-1620 nm: Rs,avg > 99.8%; 1750-4500 nm: Tp,avg > 80% (IBS-coating)

HT 515-532 nm HR 650-1000 nm HT 1100-4000 nm / 0° GDD opt. on YAG / 
[B-07321]HT 515-532 nm HR 650-1000 nm HT 1100-4000 nm / 0° GDD opt. on YAG / 

best effort (IBS-coating)

HT 532 nm HR 700-1000 nm HT 1100-2100 nm‍ / 0° low GDD
[B-11546]HT 532 nm HR 700-1000 nm HT 1100-2100 nm‍ / 0° low GDD

532 nm: R < 5%; 700-1000 nm: R > 99.9%; 1100-2100 nm: T > 90% (IBS-coating)

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