MePS*
(Mechanical Polarization
Switch)
a
broadband
high power polarization rotator
|
|
Features
- Switching between two polarization states
- Broadband UV, visible, near-IR or IR
- High-power capability
- Large aperture
- Excellent transmission
- Excellent extinction ratio
- Excellent for ultrashort pulses and extreme wavelengths
|
The
device is based on the principle of the simple polarization rotating
periscope. Using a flip mirror and 90o
rotation of the device, the polarization and the orientation direction
of the
beam profile of almost any type of laser can be changed by 90o
without affecting the optical path length. The standard 1”-diameter
mirrors are
replaceable to adapt to different wavelength ranges and wavelength
discrimination
can be achieved using dichroic optics.
Specifications
|
Repeatability:
|
<
0.1 mrad
|
|
Polarization
purity:
|
>
106
|
|
Clear
aperture beam diameter in mm 1):
|
8
|
|
Wavelength
range in µm 2) :
|
0.15–
20 µm
|
|
Transmission
2):
|
>
99 %
|
|
Wavefront
distortion 2):
|
<
l/10
|
|
Damage
threshold 2):
|
cw:
1 MW/cm2 ; pulsed: 20 J/cm2
|
|
Dimension
of the rotating head in mm (L×W×H)
|
142
× 82 × 65
|
|
Outer
dimensions in mm (L×W×H)
|
200 × 120 × 110
|
1): Larger beam
diameters available upon request.
2): Depends on
the mirror
set.
|
|
|
|
Polarization maintaining
position
|
Polarization rotating
position
|
*:
Patent pending.
