Agilent Technologies 8163A Programming Manual page 101

Signal Generation – The SOURce Subsystem
command:
syntax:
description:
NO TE
NO TE
parameters:
response:
example:
affects:
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave Multichannel
System, Third Edition
[:SOURce[n]][:CHANnel[m]]:POWer[:LEVel][:IMMediate][:AMPLitude]
[:SOURce[n]][:CHANnel[m]]:POWer[:LEVel][:IMMediate][:AMPLitude]<wsp><value>
[PW|NW|UW|MW|Watt|DBM]
Sets the power of the laser output.
If an optical attenuator is installed, the power value returned is dependent on
whether you are using power or attenuation mode (see
"[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation:AUTO" on page 99).
• If you are using power mode, the value returned is the output power.
• If you are using attenuation mode, the value returned is the laser output power,
and you must also use the attenuation value to calculate the output power (see
"[:SOURce[n]][:CHANnel[m]]:POWer:ATTenuation[l]" on page 98).
The values for the output power that you set in the Power Mode, and the laser
output power that you set in the Attenuation Mode, are stored and used
independently.
The instrument may not be able to output a signal with the maximum
programmable power, it will output a signal with the maximum power. Use the
"[:SOURce[n]][:CHANnel[m]]:POWer[:LEVel][:IMMediate][:AMPLitude]" on
page 101 to query the power being output.
The default units are DBM or W, depending on the unit selected using the following com-
mand: "[:SOURce[n]][:CHANnel[m]]:POWer:UNIT" on page 104.
Any value in the specified range (see the appropriate User's Guide).
Also allowed are: MIN: minimum programmable value
MAX: maximum programmable value
DEF: This is not the preset (*RST) default value, but is half the
sum of the minimum programmable value and the maximum pro-
grammable level
none
sour2:pow 23uW
All tunable laser and DFB source modules
Measurement Operations & Settings
101