Dispersion-Compensating Prism
Features：
•Apex Angle Tolerance: ±15 arcmin
•Surface Flatness: λ/4 at 633 nm
•Use to Compensate for Dispersion
•Fabricated from CaF2, Fused Silica, SF10, or N-SF14
These Dispersion-Compensating Prism Pairs are designed to compensate for the pulse broadening effects that occur in ultrafast laser systems without introducing significant power losses. Four large-index-of-refraction prism materials are offered to provide various group velocity dispersion (GVD) values, thereby compensating for different pulse dispersion conditions.
Applications：
Prism pairs such as these have multiple applications. They can be used to create an optical filter; simply insert a knife edge to attenuate the short- or long-wavelength components. If the prism pair is placed inside a laser resonator, they can be used for wavelength tuning. Alternatively, prism pairs can be used for dispersion compensation. Each time light passes through the optical elements within a laser cavity, positive (commonly referred to as normal) dispersion occurs. The prism pair also contributes positive dispersion.
Specifications：
|
Item
|
Fused Silica
|
SF10
|
SF14
|
CaF2
|
|
Wavelength
|
185-2100nm
|
380-2400nm
|
365-2400nm
|
1800-8000nm
|
|
Dimension Tolerance
|
+0.0，-0.1mm
|
|||
|
Angle Tolerance
|
3 arc min(Standard) / 10 arc sce(High Precision)
|
|||
|
Clear Aperture
|
>85%
|
|||
|
Surface Quality
|
60/40（Standard）/ 20/10（High Precision）
|
|||
|
Flatness
|
λ/ 4(Standard) / λ/10（High Precision）per 25mm@633nm
|
|||
|
Chamfer
|
<0.25mm*45°
|
|||
|
Coating
|
Uncoated
|
|||
Standard：
|
Part No
|
Material
|
A
|
B
|
C
|
Angele(°）
|
|
Fused Silica
|
15.0
|
15.0
|
10.0
|
69.0
|
|
|
DSP-SF10
|
SF10
|
15.0
|
15.0
|
10.0
|
60.6
|
|
DSP-SF14
|
SF14
|
15.0
|
15.0
|
10.0
|
59.6
|
|
DSP-CaF
|
CaF2
|
15.0
|
15.0
|
10.0
|
69.9
|