Keysight Technologies N4373D User Manual page 77

Keysight N4373D Lightwave Component Analyzer, User's Guide
• If you have selected to use the External Input, you can enter
the wavelength of the external source here. This wavelength
is used by the optical power meter.
Power [dBm]
Set the optical output power of the internal laser source.
If you select to use the optional External Input, enter the
average optical output power at the LCA transmitter output
connector.
Laser On
This control, which overrides the default behavior of the
Lightwave Component Analyzer, is only enabled in Advanced
mode and if you have not selected to use the optional External
Input.
Select to turn the laser source on for the following LCA
measurement.
Deselect to turn the laser source off for the following LCA
measurement.
External Input
This control, which overrides the default behavior of the
Lightwave Component Analyzer, is only enabled in Advanced
mode. The External Input is an optional extra for the Lightwave
Component Analyzer.
• Select to use a laser source connected to the external input
(on the rear of the optical test set.
• Deselect to use the laser source in the optical test set.
Optical Input
Select the input to which your device under test is connected.
• For input signals up to +7 dBm (calibrated up to +4 dBm),
use Input 1.
• For input signals up to +17 dBm (calibrated up to +14 dBm),
use Input 2.
User Calibration
Select the calibration data you want to use.
• None uses the factory calibration data only (no additional
user calibration data is used).
User Interface Reference
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