
Er:YLF/YAG • OPO
MIR > 2500 nm


- VAR
- DAR
- TAR
- BBAR
- MAR
- WAR

λ [nm] | AR (0°); R < | method | AR (45°); R < | method | ||
---|---|---|---|---|---|---|
2940 | 0.25% | on CaF2 | EBE | 1% | on CaF2 | EBE |
0.05-0.1% * | on Sapphire | IBS | 0.1%-0.6% * | on Sapphire | IBS | |
3300 | 0.3% | on CaF2 | EBE | 1% | on CaF2 | EBE |
4000 | 0.5% | on CaF2 | EBE | 1% | on CaF2 | EBE |
* depending on price, substrate size and laser power


- HR
- DHR
- BBHR
- MHR
- WHR
- Metal

λ [nm] | HR (0°); R > | method | HR (45°); R > | method | ||
---|---|---|---|---|---|---|
2810 | 99.8% | on CaF2 | EBE | 99.7% | on CaF2 | EBE |
2940 | 99.7% | on CaF2 | EBE | 99.7% | on CaF2 | EBE |
99.9xx%* | on YAG | IBS | 99.9xx%* | on YAG | IBS | |
3300 | 99.7% | on CaF2 | EBE | 99.7% | on CaF2 | EBE |
4000 | 99.5% | on CaF2 | EBE | 99.5% | on CaF2 | EBE |
* 99.9xx% means that we can optimize the reflection/transmission to your needs.


- TFP
- CP
- BBPOL

λ [nm] | AOI | method | |
---|---|---|---|
4000 | Tp > 95%, Ts < 2% | Brewster | EBE |


- VA
- GOC
- GP
- GNF
- GIF

λ [nm] | 0°→ 45°; T = | method | |
---|---|---|---|
2940 | 90% → 1% | on CaF2 | EBE |
LASEROPTIK has a dedicated EBE coating machine for infrared coatings made with non-radioactive materials. Due to national environmental regulations we do not use ThF4, but still cover a range of up to λ = 4 µm for reflecting systems and up to λ = 10.6 µm for anti-reflecting systems.
Coatings are applied on various IR substrates such as Ge, ZnSe, Sapphire, CaF2 and others. Metal coatings are also available for IR applications.
All values are given for standard coatings. Customized coatings available for all types.
Coating methods available:





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
Every coating type can be optimized
for every
• substrate material
• wavelength
• reflection/transmis-
sion value
• angle of incidence
• polarization
• GDD value
• ...
Alternatively we can create
a totally new design for you.