ZOOM
Allows you to zoom in on an area of interest. To Zoom IN, drag with the mouse
from top left to bottom right. To Zoom OUT or RESET the graph, drag the
mouse from bottom right to top left on the graph. The axes numbers will
update automatically.
TRACE
Allows you to select and deselect port traces as well as define which graphs are
visible in the WaveShaper App window.
3.5
Advanced
Spectral Range Control
This control allows the user to control the spectral range and, if
required, the repeat function, over which a filter function is
applied. The Window function is used to limit the applied
range of a UCF and also to define the region of the frequency
spectrum which is updated when the "Apply" button is
pressed. The control allows the user to set the 6 dB window
applied to the selected filter in 1 GHz increments from 10 GHz
up to the operating range of the unit. The change in the
window is symmetric around the center of the filter.
Adjustment of the Window is through direct editing in the
entry box.
Note:
The Window control is accurate for values
down to approximately 20 GHz. Below this value the
bandwidth approaches the instrument transfer function of
approximately 10 GHz.
Repeat Function
The repeat function allows the user to specify repeat
applications of this filter at a specified frequency gap for
a specified number of times (up to the operational limit
of the unit). The Window function is defined at 6 dB as
this is the value which is required to ensure that the
function can be stacked one-against-the-other for use
when switching signals using the WaveShaper 4000A or
16000A to emulate a Wavelength Selective Switch. For a
mathematical derivation of this, see the White paper
entitled "Filter Bandwidth Definition of the WaveShaper
S-series Programmable Processor" available on the Finisar
website.
WaveShaper A Series User Manual
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