IR optics
The dispersive mirror technology has already become well-established in systems based on Ti:Sa lasers (~800 nm) and near-infrared Yb:YAG lasers (~1030 nm). Recently, the interest has been broadened to thulium- and holmium-based lasers systems operating around 2 μm, as well as to novel technology based on 2.4 μm chromium doped zinc sulfide (Cr:ZnS) or chromium doped zinc selenide (Cr:ZnSe) extending the laser output to 3.2 μm. In order to further develop this technology, dispersive mirrors in the infrared spectral range of 1.6-4 μm are required.
> 2800nm
* GDD (fs2) = Group Delay Dispersion* CW (nm) = Central Wavelength* AOI = Angle of normal Incidence in degrees* Pol = Polarization
Name
Min (nm)
Max (nm)
CW (nm)
Reflectivity (%)
GDD (fs2)
AOI (°)
Pol
Comments
2600
3200
2900
99
450
5
p
Dispersive dichroic mirror
2300
3500
2900
99
-
0
p
Dichroic mirror
2000
4000
3000
99.5
-200
5
p
Broad-band complementary pair
2800
3400
3100
99
500
0
p
Broad-band mirror with positive dispersion
2800
3600
3200
99.96
500
5
p
Mirrror with positive dispersion
2700
3700
3200
99.9
400
5
p,s
Mirror with positive dispersion
2850
3700
3275
98
-
0
p
Beam splitter
3000
4000
3500
98
-500
5
p
Broad-band dispersive mirror
3100
3950
3525
98
-200
0
p
Broad-band dispersive mirror
HD1715
3200
4500
3850
99.95
100
5
p,s
Mirror with positive dispersion
3500
4500
4000
99
-
45
s
Dispersive mirror with high reflectivity
3750
4750
4250
99.5
300
0
p
Mirror with third order dispersion (TOD)
3850
4700
4275
90
0
0
p
Broad-band dispersive mirror
4000
4600
4300
99
-400
0
p
Broad-band dispersive mirror
4000
4600
4300
98
0
0
p
Broad-band dispersive mirror
4700
6300
5500
99
-
0
p
IR filter
4650
6550
5600
65
-
0
p
High-dispersive mirror
HD1715
Details Description of the design
Mirror with positive dispersion
Type
Mirror
Subtype
High(positive)-dispersion mirror
Angle of Incidence in degrees
5 °
Polarization regime (primary spectral range)
p,s
Spectral category
IR
Spectral working range low end
3200 nm
Spectral working range high end
4500 nm
Central wavelength
3850 nm
Nominal GDD
100 fs2
Minimum reflectance
99.95 %
Maximum reflectance
-
Minimum transmission
-
商品属性 [波长] 3850nm [反射率] 99.95% [偏振] p,s