Agilent Technologies 8163A User Manual page 251

The PACT Application
Agilent 8163A/B, 8164A/B, and 8166A/B User's Guide, Fourth Edition
– <Continuous>, which sweeps continually at the speed you set.
Press Enter.
N O T E Continuous sweep mode is not available for the Agilent 81689A
Tunable Laser module.
[Dynamic]
The [Dynamic] parameter, which is only relevant for <Continuous>
sweep mode, allows you to achieve a higher dynamic range than is
possible using one wavelength sweep. Depending on the menu item
you choose, the Tunable Laser will be swept once, twice, or three times
and the chosen Power Meters will be set to different power ranges for
each wavelength sweep. The sweeps are combined using a "stitching"
process to generate the final results.
This feature is useful when you wish to measure the transmission
characteristics of a component that transmits or absorbs specific
wavelengths selectively, for example, a Fiber Bragg Grating.
17 Move to [Dynamic], press Enter, and move to one of the following:
– <Low>, the wavelength is swept once, achieving a lower dynamic
range but sweeping more quickly,
– <Medium>, the wavelength is swept twice, achieving a medium
dynamic range and medium speed, and
– <High>, the wavelength is swept three times, achieving a higher
dynamic range but sweeping less quickly.
Press Enter.
18 If your Tunable Laser module has two optical outputs perform the
step below.
Move to [Optical Output] and press Enter. Use the Modify Knob to
move to one of the following:
– <High Power (2)>, a high power optical output, for example, for
use in tesing Erbium Doped Fiber Amplifiers (EDFAs), you see a
screen similar to Figure 63,
– <Low SSE (1)>, a lower power optical output with low Source
Spontaneous Emission (SSE), for example, for use in passive
component test, you see a screen similar to Figure 64,
– <Both (master:2)>, where both optical outputs can be enabled but
only the output of the high power optical output can be regulated,
and
– <Both (master:1)>, where both optical outputs can be enabled but
only the output of the low SSE optical output can be regulated.
Press Enter.
Applications
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