AMPLITUDE Magma 200 Manual de solución rápida de problemas - Página 5
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Imprimir página2.1.3. Synchronisation signals
2.1.3.1.
Check 'Channels' tab of the SelectPulse to see if the required channels are ON. If a diode's
channel is disabled, set the diode(s) current to 0 % before activating it; then increase the
current by steps of 10 %.
2.1.3.2.
When power up, it can happen that the delays of the Front-end unit are not really applied
(even though the reading in the Magma 25 module says so). To check is the signals are really
applied, plug the 'Pockels monitor' and 'Pulse picker monitor' BNC cables from the Front-end
in an oscilloscope to see if the timings match the controls (check the delays and width of both
signals). If not, lower the pump diode of the regen to 50 % and proceed to reset the settings:
remove and add 1 ns on each control with the arrows on the right.
2.1.4. Pump diode is not on
Check that the power supply and output controls are both ON and that the 'Set current' is not
at 53 % or more. If the diode is not turned on, set the current to 0 %, turn it on and proceed
to increase the current up to 50 % and follow the start-up procedure.
2.1.5. Shutter is closed.
This can be seen if the shutter button on the Front-End unit is not lit green. The shutter has
several controls which must all be opened:
-
Key 'Front-End' on the key rack unit (note: if the key is OFF the oscillator is not running
either, the regen will not operate at all)
-
'Shutter' button in the main tab of the Magma 25 module is OFF
2.1.6. Room temperature
If the room temperature has drifted up or down by more than 3 °C, adjust the room
temperature. Otherwise the regen cavity will need to be aligned for the new temperature.
5
Magma 200
Quick troubleshooting guide
Version 1.00
SelectPulse
Magma 25 – Synchro tab
-
Figure 1 - Regen diode control module
Amplitude Laser Group
11 avenue de Canteranne, Cité de la Photonique - Bâtiment MEROP A 33600 Pessac - France
Headquarters
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Capital social: 317 100 €
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Siret 434 637 005 - APE 6420Z
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Fax: +33 (0)5 56 46 06 94
Headquarters
/
11 avenue de Canteranne, Cité de la Photonique - Bâtiment MEROPA 33600 Pessac - France
Capital social : 320 925 €
Amplitude Laser Group
/
Tel: +33 (0)5 56 46 40 60
/
N°TVA Intracom: FR 70 434 637 005
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/ [email protected] / www.amplitude-laser.com
/
SIRET: 434 637 005 - APE 6420Z
/
N°TVA Intracom: FR 70 434 637 005
Fax: +33 (0)5 56 46 06 94
/
/ www.amplitude-laser.com