124 
Remote Commands
User Calibration Commands
This is done with the :UCALibration:STARt command
10.
λ=λ
Start
11. Repeat the following steps until λ>λ
Stop
.
a. Set 
λ on the tunable laser source, the attenuator and the 
power meter.
b. Read the power (Power).
c. Power = -Power.
d. Set the user calibration value to Power.
This is done with the :UCALibration:VALue command
e.
λ = λ + λ
Stepsize
12. Stop the user calibration.
This is done with the :UCALibration:STOP command
:UCALibration:STARt 
Syntax     :UCALibration:STARt <wsp> 
<start_value> , <step_value>
Description     This command starts the entering of the user 
calibration data.
You must send two values with this command, 
the wavelength of the first calibration point, 
and the spacing between the calibration points. 
The default units for both values are meters.
The minimum value for the start wavelength is 
1200nm, and the minimum value for the step 
size is 0.1nm, the maximum value for the step 
size is 10nm. Other than this, the start and step 
values must satisfy the formula
start value + ((number of step - 1) 
× step value} ≤ 1650nm
where the number of steps must be in the range 
10 to 401.
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