8163A/B, 8164A/B, 8166A/B User’s Guide 147
Tunable Lasers 5
How to Perform a Wavelength Sweep
What is a Wavelength Sweep ?
A wavelength sweep is performed when the instrument changes the
optical wavelength of the optical output across a user-defined wavelength
range. You can use a wavelength sweep to measure the
wavelength-dependent loss of an optical component.
How to Set the Wavelength Sweep
The Sweep Parameters
These are the parameters for the wavelength sweep:
• [
λ Start], the wavelength at which the sweep begins,
• [
λ Stop], the wavelength at which the sweep ends,
•[Step], the size of the change in the wavelength for each step of a
stepped sweep,
•[Cycles], the number of times the sweep is repeated,
•[Dwell], the amount of time spent at the wavelength during each step,
for a stepped sweep
•[Vsweep], the speed of a continuous sweep,
•[Sweep mode], see How to Perform a Sweep on page 149,
•[Repeat mode], see How to Set the Repeat Mode on page 148.
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 165.
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