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3
Operating Instructions
What is a Tunable Laser?
How to Set the Power
How to Set the Output Power of a CW Signal
46
A tunable laser is a laser source for which the wavelength can be varied
through a specified range. The Keysight Technologies Tunable Laser
modules also allow you to set the output power, and to choose between
continuous wave or modulated power.
The laser output can be either:
•
a continuous wave (CW) signal, fixed amplitude signal, see
the Output Power of a CW Signal
•
a modulated signal, see
•
a signal with increased line-width (coherence control), see
Increase Linewidth
If [Mod Src] is <Off>, a continuous wave signal is the chosen optical
output. A continuous wave signal is the default.
If any other [Mod Src] source is chosen, the chosen source modulates the
signal. For possible modulation sources, see
page 58.
How to Set Output Power
To set the output power to 555.000 mW:
1
Move to the power parameter, [P], and press [Pwr unit].
2
Move to <W> and press Enter.
3
Press Enter to start editing the output power value.
4
Enter 555.000, press [Unit+] or [Unit-], as required, to select mW as the
power units, and press Enter.
on page 46,
How to Modulate a Signal
on page 61.
How to Modulate a Signal
Keysight 81960A Compact TLS Module User's Guide
How to Set
on page 58, or
How to
on
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