What Is A Laser Source Module; A Description Of The Front Panel - Keysight Technologies 81663A User Manual

1 Getting Started with DFB Laser Sources
What is a DFB Laser Source Module?

A Description of the Front Panel

12
A distributed feedback (DFB) laser is a highly- coherent laser source that
emits radiation in a narrow spectral width. The Keysight Technologies DFB
laser source module may be tuned within a specific wavelength range, the
current wavelength is displayed on the user interface of your mainframe.
The center wavelength your module supports is displayed on the front
panel, see Figure
Figure 2
To insert these modules into your mainframe see your mainframe's User's
Guide.
How to Enable/Disable Laser Output
If the laser is on, the green LED on the front panel of the module is lit. If the
laser is off, green LED on the front panel of the module is unlit. You can
switch the module by pressing the Active button on the front panel of the
module.
2.
Front Panel of DFB Laser Source Module
Keysight DFB Laser Source Module User's Guide