A statistically enabled grating coupler model generated by directly using measured S-parameter data.
For more information on how to create statistical compact models for passive components, see Creating statistical passive compact models directly from measured s-parameter data.
For information on statistical CMLs, see Statistical CMLs.
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Grating Coupler (Statistical Using Measured S-Parameter Data) - Lumfoundry Template
Template: gc_raw_spar_stat_te_c
Photonic Model: sparsweep_pcell
Quality Assurance Test: sparsweep_pcell QA
Statistically Enabled Parameters: wafer_no, device_no
Parameters: None
Virtuoso/Verilog-A Support: No (support available only for nominal models)
Required Data
Parameter Script File
[[snippet||7206598577555]]
Statistical Parameter Variables (statistical compact models only)
Variable | Type | Description |
---|---|---|
stat_measurement_data | struct |
The ‘stat_measurment_data’ variable is used when creating a statistically enabled s-parameter element by using raw measurement data directly. It contains information about the parameterization of the raw data in terms of the GLOBAL and LOCAL sample numbers. The variable is defined as a struct with the following fields: GLOBAL: Defined as a struct with fields
LOCAL: Defined as a struct with fields
Note: If all the measurements are from the same GLOBAL set then the N_sample field in GLOBAL should be set to 1. |
QA Variables
[[snippet||7206702503443]]
Statistical QA Variables (statistical compact models only)
[[snippet||7206915108115]]
Data File
S_parameter |
A text file containing the grating coupler s-parameters in the 'S-Parameter file sweep' option defined in Optical N Port S-Parameter format (see "S-Parameter file sweep option"). The s-parameters must be defined for at least two frequency points. The parameters in the S-Parameter data of this template consists only of statistical parameters. The number of parameters always should be two with the first parameter defining the GLOBAL group number and the second parameter defining the LOCAL group number. For more information about these two parameters, see Creating statistical passive compact models directly from measured s-parameter data. Note: It's preferable to include group delay, as this allows for accurate modelling of the group delay between the different ports of the element. For more information on providing group delay, see group delay specification in s-parameter elements. |