Anritsu MS9710C - Page 159

Section 9 Details on Device Messages
9-20
Type 4: PMD measurement
• Value of
∆ t
∆ t indicates a differential group delay time.
The unit is always fs. A value is output down to the second decimal place.
When analysis is impossible, –1 is output.
• Value of λ 1st
λ 1st indicates the first peak wavelength.
The unit is always nm. A value is output down to the fourth decimal place.
When analysis is impossible, –1 is output.
• Value of λ last
λ last indicates the last peak wavelength.
The unit is always nm. A value is output down to the fourth decimal place.
When analysis is impossible, –1 is output.
• Value of PKcount
PKcount indicates a number of peaks. A positive integer is output.
When analysis is impossible, –1 is output.
Type 5: Optical AMP measurement
Type 5: Optical AMP measurement
• Value of G
G indicates the gain of the optical amplifier.
The unit is always dBm. A value is output down to the second decimal place.
When analysis is impossible, –999.99 is output.
• Value of NF
NF indicates a noise figure.
The unit is always dB. A value is output down to the second decimal place.
When analysis is impossible, –999.99 is output.
• Value of λ sig
λ sig indicates a signal light wavelength.
The unit is always nm. A value is output down to the third decimal place.
When analysis is impossible, –1 is output.
• Value of L ase
L ase indicates the ASE level per resolution.
The unit is always dBm. A value is output down to the second decimal place.
When analysis is impossible, –999.99 is output.
• Value of RES
RES indicates the resolution data used in the NF calculation.
The unit is always nm. A value is output down to the third decimal place.