Operating Basics
Perform Dark-Level and
User Wavelength Gain
Compensations
Perform a dark-level compensation to maximize the accuracy of the extinction
ratio and other optical automatic measurements. Perform a User Wavelength Gain
compensation to optimize an optical channel to your custom input signal.
Use the following procedure to perform either compensation.
NOTE.
These procedures compensate the selected module and its current
bandwidth and
fi
lter selection. The compensation values are not saved when
powering off the instrument.
This procedure applies only to optical modules.
NOTE.
This procedure shows images from the DSA8200 instrument user interface.
The DSA8300 UI, although different in appearance, has a similar UI layout as the
DSA8200 for most functions.
Overview
To perform optical compensations
Control elements and resources
Prerequisites
1.
Install the optical sampling module in the instrument.
Set the acquisition system to run continuously.
See the instrument user documentation and
online help for details on operating the instrument
controls.
Select the
waveform
2.
Use the Vertical buttons to select the channel to
compensate.
Access the
dark-level
compensation
3.
Click
Setup > Vertical
.
14
80C14 Optical Sampling Module User Manual