Optical Chopper System
18488-D02 Rev G, September 24, 2012 Page 14 www.thorlabs.com
Selecting the REFERENCE OUT signal
If operated as a stand-alone unit, the external reference out signal will most likely be set to the inner
(INNER) mode. This will set the external reference out and display information to the inner slot
frequency and phase of the blade.
If two units are to be synchronized in a master-slave configuration, the master unit will act as the
frequency generator for the slave by connecting the reference out (REF OUT) of the master to reference
in (REF IN) of the slave.
Master:
• Blade – (MC1F2)
• Ref. In – (INTERNAL)
• Ref. Out – (OUTER)
• Freq. – Set to the desired frequency.
• Phase – Set to the desired phase.
Slave:
• Blade – (MC1F2)
• Ref. In – (EXTERNAL)
• Ref. Out – (INNER)
• Freq. – Set to the desired frequency.
• Phase – Set to the desired phase.
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