ILX Lightwave FPM-8200, User Manual

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G P I B C O M M A N D R E F E R E N C E
GPIB Command Reference
01_10 FPM-8200
65
C H A P T E R
4
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Action Performs internal self−test, then reports results.
Response 0 = test completed with no errors.
Non−zero = test not completed, or was completed with errors.
Example TST?
Action Prevents the FPM−8200 from executing any further commands until OPC (operation complete) sta−
tus is true.
Note Operation complete is defined for the FPM−8200 as:
The controller is idle.
Internal non−volatile memory write cycles are completed.
A power measurement result is available.
No calibration processes are running.
This command can be used to make the FPM−8200 wait until an operation is complete before con−
tinuing.
Example *WAI
—
Wait until OPC status is true.
Action Sets the wavelength (in nanometers) to be used in calibrating detector response.
Value range 800 to 1600, in increments of 1
Notes The FPM−8200’s InGaAs detector produces current in proportion to light input. The amount of cur−
rent varies also with wavelength. For this reason, it is important to give the FPM−8200 correct
wavelength information.
Calibration points are every 10 nm. When you give the FPM−8200 a wavelength between two cali−
bration points, the resulting calibration factor is a linear interpolation between the two points.
Example WAVE 1552˙Set wavelength response to 1552 nm. The calibration factor will be interpolated to
include 20% of the change in calibration points from 1550 nm to 1560 nm.
Action Requests the wavelength to be used in calibrating detector response.
Response A GPIB−standard nrf value of the current wavelength setting.
See WAVE above.
Note This information is available on the FPM−8200 front panel.
Example WAVE?
—
Response 1552 means FPM−8200 wavelength response is set to 1552 nm. The
calibration factor will be interpolated to include 20% of the change in calibration points from 1550
nm to 1560 nm.
*TST?
Test?
C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
*WAI
Wait
C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
WAVE <nrf value>
C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
WAVE?
C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL