ILX Lightwave LDC-3916338 User Manual page 85

o Front Panel
n Remote
The LASer:SYNCMDP? query returns the value of the selected channel's measured optical power, in mW.
SYNTAX DIAGRAM
PARAMETERS None. The response is an <nrf value> representing optical power in mW.
POINTS OF
INTEREST Optical power is derived from photodiode current. Optical power is defined as photodiode
current divided by CalPD, the photodiode responsivity.
This is a "synchronized" measurement: the measurement system is connected to the monitor
current-measure signal when this query is received. The photodiode current measurement is
made, optical power is calculated, and the result is returned as the response. After the
measurement is made, the measurement system returns to its normal function, switching
between the various signals and measuring them.
The response time to this query is from 200 msec to 250 msec, but the measurement is made as
soon as the query is received. In contrast, the laser:mdp? query returns immediately, but the
measurement can be up to 600 msec old.
EXAMPLES "LAS:syncmdp?" -response: 5.5, means the calculated optical power is 5.5 mW.
COMMAND REFERENCE
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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LAS
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LASer:SYNCMDP?
SYNCMDP ?
CHPT 4