Keysight Technologies N4374B, User Manual

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User Interface Reference
Keysight
N4374B Lightwave Component Analyzer, User’s Guide 67
• Length (m) and Refractive Index can only be used
together. That is, you cannot give a value just for the
refractive index or just the length.
The value for the Refractive Index of a single-mode fiber is
typically 1.467 at 1310 nm and 1.468 at 1550 nm.
The value for the Refractive Index of a graded index multi-
mode fiber is 1.49 for 62.5µm at 850nm, 1.475 for 50µm at
850nm and 1.465 for 50µm at 1300nm.
• Attenuation (dB) can be used alone, or with the values
for length and refractive index.
• File lets you use the results of a measurement of the optical
path to characterize the source or receiver optical path.
These results need to be in the form of a 2-port S-parameter
data files (also known as Touchstone .s2p data files).
Only the s21 values of the file are used for correction of the
transmission properties. All other parameters are ignored.
To assign a file,
a Click at the right of the field to which you want to
assign a file.
b Locate and select the file in the explorer window.
RF Path Deembedding
Enable
Select if you want the LCA to compensate for the RF
connections to the DUT.