Tunable Lasers How to Perform a Wavelength Sweep
130 Agilent 8163A/B, 8164A/B, and 8166A/B User’s Guide, Fourth Edition
12 Move to [Step] and press Enter.
13 Enter 1.000 and press Enter.
NOTE For a <Continuous> sweep, [Step] sets the wavelength interval
between output triggers, if you have set <Output Trigger Mode> to
<Step Finished>, see “How to Use Output Triggering” on page 141.
14 Press the [Active] hardkey on the front panel of your Tunable Laser
module to enable the optical output.
15 Press [Run Swp] to start the sweep.
NOTE The following table explains all possible configuration problems:
16 A continuous sweep can end in two ways:
a when the sweep is completed, or
b when you press [Stop].
368,LambdaStop <=Lamb-
daStart
start wavelength must be smaller than stop wavelength
369,sweepTime < min the total time of the sweep is too small
370,sweepTime > max the total time of the sweep is too large
371,triggerFreq > max the trigger frequency (calculated from sweep speed divided by
sweep step) is too large
372,step < min step size too small
373,triggerNum > max the number of triggers exceeds the allowed limit
374,LambdaLogging = On
AND Modulation = On
AND ModulationSource!
= CoherenceControl
The only allowed modulation source with the lambda logging
function is coherence control.
375,LambdaLogging = On
AND TriggerOut! =
StepFinished
lambda logging only works "Step Finished" output trigger
configuration
376,Lambda logging in
stepped mode
lambda logging can only be done in continuous sweep mode
377,step not multiple of
<x>
the step size must be a multiple of the smallest possible step
size
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