JDS Uniphase SWS15100 - Polarization Dependent Loss Functions; Choosing between C and L Band

126 – Programming Guide
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 Description
getPDLReferences Gets all four zero loss references for all four polarization states S1,
S2, S3, and S4 required for a PDL measurement
acquirePDL Acquires all insertion loss data required for a PDL measurement
processPDL Processes the four insertion loss traces acquired through a call to
the function acquirePDL to compute PDL
getPDLTrace Gets all four PDL traces for a specific channel, after all acquired
channel traces have been computed by the processPDL function
getTracePolarization Determines the polarization state of the last trace collected
setPolarizationControl Sets the polarization flag that enables or disables polarization
change
getPolarizationControl Gets the status of the polarization flag
getChannelPolarization Retrieves the polarization of the trace for the specified channel in
cache memory.
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 Description
setBand Sets the wavelength band (C or L) to be processed next
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com