Agilent Technologies 83400 Series, User Manual, Page: 20 / 82

1-9
Getting Started
Entering Calibration Data into an Agilent 8702D
Entering Calibration Data into an Agilent 8702D
Agilent 83400-series lightwave sources and receivers have calibration data
which must be entered into the Agilent 8702. The data is supplied on a disk
and printed on a label. The most accurate data is contained on the disk. The
calibration data for newer lightwave sources and receivers is supplied on a
DOS formatted disk which can be read using the front-panel disk drive. On
older sources and receivers, the disk uses the LIF format.
Calibration standards come in the following forms:
• Already loaded in the Agilent 8702’s memory.
For optical transmission measurements, a thru connection (short length of
fiber-optic cable) is used. For reflection measurements, a Fresnel reflection
(3.5% reflected power) is used. This is a clean connector on the output of a
lightwave coupler. For electrical measurements, standard devices include
short circuit, open circuit, termination (for example, 50
Ω
load), and thru
connection. Electrical standards are packaged together as calibration kits.
• Provided with the device and must be loaded into the Agilent 8702’s memory.
For example, the Agilent 83400-series lightwave sources and receivers are
shipped with calibration data stored on a disk. This disk must be placed into
the instrument’s front-panel disk drive so that the data can be loaded into
memory.
• Calibration standards that you create for your own devices.
Loading calibration data into an Agilent 8702D
Before using your source or receiver with an Agilent 8702D lightwave compo-
nent analyzer, you must load the calibration data as described in this section.
Two simple procedures are provided in this section. Although both are easy to
perform, copying from a disk is slightly faster. The data on the disk provides
the most accurate model of the frequency response of the calibration stan-
dard. As an alternative, entering the coefficients that are printed on the label
(located on the source or receiver) provides lower accuracy.
For steps on entering calibration data into an Agilent 8702A/B, refer to
“Entering Calibration Data into an Agilent 8702A/B” on page 1-11 .