Polarization Dependent Loss Functions; Choosing Between C And L Band - JDS Uniphase SWS15100 User Manual

Polarization Dependent Loss Functions

The following functions are used to acquire PDL traces from the SWS.
It is not necessary to triggerTrace before calling getPDLreferences, as in the case of using
getReference for IL Zero Loss Reference.
Follow the programming flowcharts in the Programming Guide to tie these functions together.
Function Name
getPDLReferences
acquirePDL
processPDL
getPDLTrace
getTracePolarization
setPolarizationControl
getPolarizationControl
getChannelPolarization

Choosing between C and L Band

Use this function to toggle between C and L Bands when using a Dual Band Selector Switch
Module (DBSSM).
Function Name
setBand
126 – Programming Guide
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Description
Gets all four zero loss references for all four polarization states S1,
S2, S3, and S4 required for a PDL measurement
Acquires all insertion loss data required for a PDL measurement
Processes the four insertion loss traces acquired through a call to
the function acquirePDL to compute PDL
Gets all four PDL traces for a specific channel, after all acquired
channel traces have been computed by the processPDL function
Determines the polarization state of the last trace collected
Sets the polarization flag that enables or disables polarization
change
Gets the status of the polarization flag
Retrieves the polarization of the trace for the specified channel in
cache memory.
Description
Sets the wavelength band (C or L) to be processed next