Measuring Pol-Mux (Polarization Mulitplexed ) Channels; Mux Mode - Viavi 8100 V2 Series User Manual

Chapter 9 OSCA-710 Optical Spectrum Measurement

Measuring POL-MUX (polarization mulitplexed ) channels

Measuring POL-MUX (polarization mulitplexed )
channels
Pre-setting the OSCA for an in-service OSNR
measurement in POL-MUX mode
As the out-of-band OSNR measurements might not provide the 'TRUE' OSNR value for
the above listed systems configurations, the POL-MUX OSNR measurement method
based on VIAVI's coherent spectral correlation technique must be selected.
1 Press S
2 Press
The instrument will be set for in-band OSNR measurements.
All Parameter settings will be done automatically:
The following parameters will be pre-set:
Sweep mode
Sweep range
Channel detection
Min channel spacing
OSNR method
noise Acq. BW
OSNR meas Type
Reference Correlation
Symbol rate
Manual Settings: Min Channel Spacing
Min channel spacing needs to be set according to the minimum present channel spacing
in a system.
328
until OSCA test setup appears.
ETUP
Test Auto PolMux-OSNR
single
C-band= 1527.6-1565.5nm 191.5T-196.25THz
permanent auto detection of channels & ch-spacing
std 50GHz, needs to be adjusted manually, see below
needs to be adjusted manually, see below
standard 0.1nm
S/N = indicates real signal to noise measurement
needs to be adjusted manually, see below
needs to be adjusted manually, see below
User Manual
button.
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