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Operation
Agilent 81950A Compact TLS module, First Edition
Operation
Parameters
The instrument allows setting the following parameters:
• Laser State
• Optical Output Power
• Operation Mode ("Auto Mode" or "Grid Mode")
• Frequency, Wavelength
• Reference Frequency
• Grid Spacing
• Channel Number
• Frequency Offset (or "Fine Tune Frequency")
• Modulation
•
State
•
SBS suppression FM frequency
•
Signaling or trace tone AM level
The AM modulation is only available with the Agilent 81950A module
using the BNC connector at the module's front panel. The N7711A /
N7714A instruments platform features no such connector.
Output Frequency
The output frequency is calculated using this equation:
×
f Δ
f
=
fo
+
c
s
+
Limitations
• Reference frequency and grid spacing can only be changed when the
laser is off.
• Operation mode can only be changed when the laser is off.
• The maximum grid spacing value the underlying hardware can handle
is 3.2767 THz and depending on the specific instrument it may be less
than that.
Operating Instructions
33
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