EXFO PM-1600 High-Speed Power Meter - Manual (Page 75)

Performing Typical Tests with Your PM-1600
High-Speed Power Meter 65
Using the Analog Output
Using the Analog Output
The analog output provides an electrical signal proportional to the optical
power input on the detector. On a dual-channel high-speed power meter,
this is only available for channel #1.
The analog output signal is the redirection of the signal after the first
amplification stage. Do not use the analog output while in Autorange mode
(see Setting Measurement Range on page 22) because the gain scales of
the first amplification stage are constantly changed to optimize
signal-to-noise ratio.
The following two figures illustrate typical use of the analog output.
HIGH-SPEED POWER METER PM-1600
dB W/W
ENTER
dBm/W Ref
Null
Chan
Range λ Avg Shift
Store
Recall
Program
Setup
Analog OutC1 C2 Ext. Trig Display
PM-1600
Digital oscilloscope
Analog output
HIGH-SPEED POWER METER PM-1600
dB W/W
ENTER
dBm/W Ref
Null
Chan
Range λ Avg Shift
Store
Recall
Program
Setup
Analog OutC1 C2 Ext. Trig Display
PM-1600
Analog output
Data logger
Performing Typical Tests with Your PM-1600
High-Speed Power Meter 65
Using the Analog Output
Using the Analog Output
The analog output provides an electrical signal proportional to the optical
power input on the detector. On a dual-channel high-speed power meter,
this is only available for channel #1.
The analog output signal is the redirection of the signal after the first
amplification stage. Do not use the analog output while in Autorange mode
(see Setting Measurement Range on page 22) because the gain scales of
the first amplification stage are constantly changed to optimize
signal-to-noise ratio.
The following two figures illustrate typical use of the analog output.
HIGH-SPEED POWER METER PM-1600
dB W/W
ENTER
dBm/W Ref
Null
Chan
Range λ Avg Shift
Store
Recall
Program
Setup
Analog OutC1 C2 Ext. Trig Display
PM-1600
Digital oscilloscope
Analog output
HIGH-SPEED POWER METER PM-1600
dB W/W
ENTER
dBm/W Ref
Null
Chan
Range λ Avg Shift
Store
Recall
Program
Setup
Analog OutC1 C2 Ext. Trig Display
PM-1600
Analog output
Data logger