Cailabs CANUNDA-PULSE User manual
INSTALLATION MANUAL
2020/12
©Atypix
Table of contents
1. Safety ............................................................................................................................................. 4
2. Recommended equipment for installation ....................................................................................... 4
3. Installation ..................................................................................................................................... 5
3.1 Module preparation ...................................................................................................................................................... 5
3.2 Beam preparation ....................................................................................................................................................... 5
3.3 Module positioning ...................................................................................................................................................... 6
3.4 Module insertion .......................................................................................................................................................... 7
3.5 Power optimization ..................................................................................................................................................... 8
3.6 Beam shape veriication ............................................................................................................................................. 9
4
1. Safety
Beware of the risks involved when working with your laser. Check your laser eye safety class and follow the recommendations.
Follow the guidelines provided by the manufacturer of your laser source.
2. Recommended equipment
for installation
• Pedestals
• 2x Alignment mirrors (with kinematic mount)
• IR Card
• Graduated ruler
• Rail
• Power meter
• Beam proiler or camera
5
Equipment needed:
• Pedestals
Note: The module mounting brackets have M6 holes, hence
pedestals with M6 tapered holes are recommended.
3. Installation
3.1 Module preparation
The irst step is to determine the working beam height H, and
choose and install the appropriate pedestals to elevate the
CANUNDA-PULSE module at the correct working height.
The module input is 35 mm above the bottom surface of the
module mounting brackets. The beam height His then related
to pedestals height Hpby:
H=Hp+35 mm
Example: With 50 mm pedestals, the beam height His 85 mm
Turn on your laser source. For the whole installation procedure,
a laser power of 10 mW is enough.
As depicted in the previous picture and using the IR Card to
check the position of the laser beam, manipulate the alignment
mirrors to make sure that the beam is:
• Parallel to a line of breadboard holes
• With constant height H as determined in section 3.1
Locate the beam waist. The input laser beam must have a
500 µm waist located at a distance ≥150 mm from the last
mirror. If the laser beam is smaller or larger, use a beam
expander/reducer or a telescope to adapt the input beam
dimensions.
Equipment needed:
• 2x Alignment mirrors (with kinematic mount)
• IR Card
• Graduated ruler
3.2 Beam preparation
Position and secure the two alignment mirrors to the
breadboard as depicted in the picture below (the more
separation between the mirrors, the better).
6
After locating the beam waist position, determine the
expected longitudinal position of the module. Attach a rail to a
line of holes and perpendicularly to the beam direction so that
the rail is as close as possible to either the front or the back
pedestals, and push the module pedestals against the rail (see
picture below).
Equipment needed:
• CANUNDA-PULSE Module with pedestal installed.
• Graduated ruler
• Rail
3.3 Module positioning
The front surface of the module must be located 60 mm before the beam waist position, as depicted in the picture below.
7
Equipment needed:
• IR Card
3.4 Module insertion
Remove the input and output protective caps of the
CANUNDA-PULSE module and set the module’s input iris at
minimal aperture. Slide the module against the rail until the
laser beam is centered on the input iris.
Position an IR card at the output of the module
(alternatively, an IR viewer can be used along with a piece of
white paper as a difusor). Open the input iris, light should come
out of the module. If not, slide the module gently against the rail
around the starting position while monitoring the output until
you can see an output beam. When you do, secure the module
to the breadboard.
8
Equipment needed:
• Power meter
3.5 Power optimization
Be careful as you might encounter a local maximum. To make
sure you ind the position of the maximum power, do half a
revolution of each knob of the last mirror to see when the power
achieves its real maximum.
Fine tune the optimization using both mirrors horizontally and
vertically. Final transmission should be between 70 and 95%
depending on input beam quality.
Position a power meter at the module output and optimize
output power by manipulating the last mirror’s kinematic
mount, in order to have maximum transmission (see picture
below).
9
Equipment needed:
• Beam proiler or camera
3.6 Beam shape veriication
Position a beam proiler or a camera directly at the module
output (see picture below). Check the beam shape 20 mm after
the back surface of the module.
If the beam shape does not match the speciications, the power
optimization of the previous step may have been set to a local
maximum. In that case, try again the procedure described in
section 3.5.
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