| Waveplate |
Illustration
|
Properties
and Application |
| Low-order Waveplate |
|
Its properties
are much better than the multi-order waveplate because
of its thinner thickness (less than 0.5mm). Better
temperature (380C), wavelength (1.5nm) and incident
angle (4.50) bandwidth and high damage threshold
make it widely used in common application. Also,
it is economical. |
| Zero order waveplate |
Cemented
waveplate
Optical contacted
waveplate |
|
It is
constructed of two multi-order waveplates with their
axis crossed. Thus, it performs as a zero-order
waveplate because of the effect of two plates counteracting
each other. It has wide temperature bandwidth and
wavelength bandwidth properties. Because it is cemented,
the damage threshold must be considered (about 10MW/cm2)
when used. |
Air
spaced
waveplate |
|
Its performance
is as good as cemented zero order waveplate. Additionally,
the air spaced construction enables it is suitable
for the high power laser application. The damage
threshold is more than 500MW/cm2. |
| True Zero order Waveplate |
Cemented |
|
The true
zero order waveplate means that the thickness of
waveplate is very thin (less than 0.1mm) which make
the true zero-order waveplate excellent in temperature,
wavelength and incident angle (about 20deg.) bandwidth.
Therefore, it is excellent choice for the highly
accurate application. It is cemented with a block
of glass which is limited to low and medium power
application. |
| Single
Plate |
|
In order
to enable the waveplate suitible for high damage
threshold (more than 1GW/cm2) application: Simphoton
provides a single plate of true zero-order waveplate
*The thickness of
this waveplate means handling can be difficult,
we can provide mounts upon request.
|
| Achromatic
Waveplate |
|
Achromatic
waveplate is similar to Zero-order waveplate except
that the two plates are made from different materials,
such as crystal quartz and magnesium fluoride. Since
the dispersion of the birefringence can be different
for the two materials, it is possible to specify
the retardation values at a wavelength range. Hence,
the retardation of the resulting waveplate can be
made to low sensitivity to wavelength change. |
| Double
Wavelength Waveplate |
|
In fact,
it is a low order or multi-order waveplate, but
which is suitable for two different wavelengths
with different retardation. The dual-wavelength
waveplate is often applied in laser harmonic generation. |
| Polarization
Rotator |
|
The polarization
plane of linearly polarized light will be rotated
by crystal quartz. |
