Ring resonator simulation (from klayout) with interconnect

[Shehab2121]

Hi,

I am trying to simulate the response of a ring resonator in interconnect (layout in klayout), but I keep getting the errors:

Checking expression validity...
Unable to evaluate expression '%MC_uniformity_thickness%' for property 'MC_uniformity_thickness' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg1
Unable to evaluate expression '%MC_uniformity_width%' for property 'MC_uniformity_width' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg1
Unable to evaluate expression '%MC_uniformity_thickness%' for property 'MC_uniformity_thickness' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg2
Unable to evaluate expression '%MC_uniformity_width%' for property 'MC_uniformity_width' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg2
Invalid expressions found. Terminating simulation.

I have done the Functional Layout Check in klayout and it gives me no errors detected.

I also tried simulating other circuits (like MZIs, WBGs) and they do not show this these errors. So I am guessinig it only has to do with the ''ebeam_dc_halfring_straight'' component.

Simulating the component 'ring_doublebus' from the EBeam_Beta library shows similar error.

Any hint why is it failing to simulate?

Thanks in advance.

Full interconnect output message:

Starting simulation...
Checking for updated design kits
Switching to analysis mode...
Running setup scripts ...
ebeam_dc_halfring_straight: setup script
ebeam_dc_halfring_straight: setup script
Checking license...
Ansys Lumerical 2024 R2.3 INTERCONNET Engine Version 9.14.3941 (Windows 64bit)
expires (month/day/year): 12/30/2027
Using config file Ansys Licensing set with ANSYSLMD_LICENSE_FILE
Using license hosted at ..
Overriding the sample rate/frequency range of 1ring (1.6e+12 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_dc_halfring_straight_0 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_dc_halfring_straight_1 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_wg_integral_1550_9 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_gc_te1550_5 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_gc_te1550_4 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_gc_te1550_6 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_wg_integral_1550_2 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_wg_integral_1550_3 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_gc_te1550_7 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of ebeam_wg_integral_1550_8 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of wg2 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of wg1 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of wg2 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Overriding the sample rate/frequency range of wg1 (1.27417e+13 Hz) with the frequency range of ONA_1 (12741.7 GHz)
Checking broken references...
Checking element connections...
Checking expression validity...
Unable to evaluate expression '%MC_uniformity_thickness%' for property 'MC_uniformity_thickness' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg1
Unable to evaluate expression '%MC_uniformity_width%' for property 'MC_uniformity_width' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg1
Unable to evaluate expression '%MC_uniformity_thickness%' for property 'MC_uniformity_thickness' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg2
Unable to evaluate expression '%MC_uniformity_width%' for property 'MC_uniformity_width' in ::Root Element::1ring::ebeam_dc_halfring_straight_0::wg2
Unable to evaluate expression '%MC_uniformity_thickness%' for property 'MC_uniformity_thickness' in ::Root Element::1ring::ebeam_dc_halfring_straight_1::wg1
Unable to evaluate expression '%MC_uniformity_width%' for property 'MC_uniformity_width' in ::Root Element::1ring::ebeam_dc_halfring_straight_1::wg1
Unable to evaluate expression '%MC_uniformity_thickness%' for property 'MC_uniformity_thickness' in ::Root Element::1ring::ebeam_dc_halfring_straight_1::wg2
Unable to evaluate expression '%MC_uniformity_width%' for property 'MC_uniformity_width' in ::Root Element::1ring::ebeam_dc_halfring_straight_1::wg2
Invalid expressions found. Terminating simulation.
Total elapsed time: 00:00:01
Restoring the sample rate/frequency range of ebeam_dc_halfring_straight_0.
Restoring the sample rate/frequency range of ebeam_dc_halfring_straight_1.
Restoring the sample rate/frequency range of ebeam_wg_integral_1550_9.
Restoring the sample rate/frequency range of wg2.
Restoring the sample rate/frequency range of wg2.
Restoring the sample rate/frequency range of wg1.
Restoring the sample rate/frequency range of 1ring.
Restoring the sample rate/frequency range of ebeam_gc_te1550_5.
Restoring the sample rate/frequency range of ebeam_gc_te1550_4.
Restoring the sample rate/frequency range of wg1.
Restoring the sample rate/frequency range of ebeam_gc_te1550_6.
Restoring the sample rate/frequency range of ebeam_wg_integral_1550_2.
Restoring the sample rate/frequency range of ebeam_wg_integral_1550_3.
Restoring the sample rate/frequency range of ebeam_gc_te1550_7.
Restoring the sample rate/frequency range of ebeam_wg_integral_1550_8.
ebeam_dc_halfring_straight: setup script
ebeam_dc_halfring_straight: setup script