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Cat. No. |
Qty. |
Description |
Illustration |
02.0500 |
1 |
Profile
rail OCM 650, 500 mm
The main components of the experimental systems are the
optical rails OCM 650. They are manufactured
distortion-free and are of thermally stabilized
aluminium. The surface is electro-polished and black
anodized. Because of the precise manufacturing, the
smoothness deviation is less than 25 µm/m and the
deviation of the symmetry axis of the rail is less than
10 µm/m, thus maintaining the optical axis during
displacement of the carrier.
The rail has a dovetail like profile. Gear racks can be
inserted and fixed into the slots. The profile rails are
available at various lengths up to 2 m.
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02.3022 |
1 |
XY-adjustment holder OCM 650 with 25 mm mount and
carrier 20 mm
This frequently needed component is ideal for the fine
adjustment of lenses, microscope objectives, diode
laser, etc. with respect to the optical axis of the rail
set-up. The displacement area is 5x5 mm. Different
mounts can be attached to the adjustment holder. This
model provides a holder for 25 mm cylindrical
components.
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05.0224
|
1 |
DIMO diode laser module
532 nm (green) HC |
No illustration |
07.0206
|
1 |
LDD-05 active power
supply |
No illustration |
07.0244 |
1 |
AOM-MK1
Driver for acousto optical modulator
This driver generates the necessary high frequency power
for the acousto optical crystal. It is matched to the
particular crystal. For the heterodyne detection a high
frequency synchronisation signal is present at the front
panel.
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 |
07.0246 |
1 |
HM-MK1
Heterodyne mixer
For heterodyne interferometers, the base frequency and
shifted frequency needs to be mixed in order to retrieve
the Doppler signal which has been generated by one of
the interferometer arms. Commonly the beat frequency of
the shifted signal plus the Doppler shift and the base
frequency are detected by means of a photo detector. By
mixing this signal with the modulation shift, the
Doppler shift remains as a wanted measuring signal. The
mixer has on its front panel the input for the photo
detector with subsequent amplifier and the input for the
reference frequency. On the back, side the pure Doppler
signal is available via a common BNC socket.
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 |
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09.0332 |
1 |
LV Beam splitting assembly
This unit forms the first part of a Mach Zehnder
interferometer. It splits the incoming laser beam into
two separate beams. In order to achieve the propagation
of both beams in one plane, the beam splitter cube as
well as the 90° bender prism is mounted on a precise
adjustment holder. A photo detector is attached in such
a way that it delivers the beat frequency of the two
modes of the Mach Zehnder interferometer.
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 |
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09.0333 |
1 |
LV Beam recombiner
This unit forms the second part of a Mach Zehnder
interferometer. It combines the laser beam of the index
and measurement arm into one beam. In order to achieve
the recombination of both beams collinear to each other,
the beam splitter cube as well as the 90° bender prism
is mounted on a precise adjustment holder.
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 |
09.0334 |
1 |
AOM - Acousto optic modulator
This element consists of a special crystal with attached
electrodes. If a high frequency electrical field is
applied, standing acoustic waves are generated inside
the crystal forming a so-called Bragg cell. An incident
laser beam is deflected and in addition its frequency is
shifted by the same value of the applied electrical
field. Such a unit is used inside an interferometer in
order to shift the frequency of, for example, the index
arm enabling the heterodyne detection technique
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 |
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09.0336 |
1 |
Speaker mounted on carrier 30
The speaker serves as an object to generate vibrations
which are measured by the laser vibrometer. It is
mounted on a 20 mm carrier in such a way that the centre
of the membrane lies in line with the optical axis of
the set-up.
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Required Options
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19.0140 |
1 |
Dual trace oscilloscope 100 MHz
Features:
Frequency Range: 150 kHz ~ 100MHz
Fully Digital Phase Locked Loop Technique Design
High Frequency Stability: ±10ppm
High Input Protection Level: +30dBm, ±25VDC
Reference Level Range: -30dBm ~ +20dBm
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Options
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19.0160 |
1 |
Digital Dual Channel Storage Scope
150MHz Bandwidth With Monochrome LCD Display
125 k Long Memory and 12 Division Horizontal Display
25 GS/s Sampling Rate for Repetitive Waveforms
Advanced Trigger:
Pulse Width, TV Line, Event Delay and Time Delay
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