Keysight Technologies N77 Series User Manual page 62

3 Specifications and Regulations
Compliance
N O T E
62
Insertion loss
Specifies the "Total loss" at a displayed attenuation of 0 dB
Conditions: Temperature range, wavelength range, source polarization
input polarization, input mode (multimode attenuators only) as
specified.
Measurement: With Fabry-Pérot Laser Source, polarization controller
(if applicable) and power meter, using high quality connectors in perfect
optical condition.
"Insertion loss excluding connectors" means connector loss is not part of the loss
value.
"Insertion loss including connectors" includes the additional insertion loss from
the connectors.
Linearity
Specifies the relative difference between the measured (displayed)
power ratio D /D and the actual (true) power ratio P
x 0
changing the power level from the reference level P
P .
x
Powers expressed in Watts.
Excluding "Noise pp (dark)" (see,
"Drift (dark)" (see, "Drift (dark)" on page
Conditions: Reference power level P
conditions as specified.
/P
x
to an arbitrary level
0
"Noise pp (dark)" on page 63
61).
= 0.01 mW (-20 dBm). Other
0
Keysight N77xx Series
, caused by
0
) and