Rings, updated GC spacing min 60 µm (#15)

* Update EBeam_LukasChrostowski_rings.py

* Update EBeam_LukasChrostowski_rings.py

* Add oas and gds files produced from .py files

* Update EBeam_LukasChrostowski_rings.py

* Add oas and gds files produced from .py files

* Update EBeam_LukasChrostowski_rings.py

* Add oas and gds files produced from .py files

---------

Co-authored-by: lukasc-ubc <lukasc-ubc@users.noreply.github.com>

submissions/KLayout Python/EBeam_LukasChrostowski_rings.py

@@ -2,7 +2,7 @@
 Scripted layout for ring resonators using SiEPIC-Tools
 in the SiEPIC-EBeam-PDK "EBeam" technology
 
-by Lukas Chrostowski, 2023
+by Lukas Chrostowski, 2024
 
 Use instructions:
 
@@ -56,8 +56,8 @@ def dbl_bus_ring_res():
 
     # Configure parameter sweep  
     pol = 'TE'
-    sweep_radius = [3,       5, 5, 5,          10, 10, 10, 10, 10]
-    sweep_gap    = [0.07, 0.07, 0.08, 0.09, 0.07, 0.08, 0.09, 0.10, 0.11]
+    sweep_radius = [3,       5, 5, 5,         10, 10, 10, 10]
+    sweep_gap    = [0.07, 0.07, 0.08, 0.09, 0.08, 0.09, 0.10, 0.11]
     x_offset = 67
     wg_bend_radius = 5
 
@@ -84,7 +84,7 @@ def dbl_bus_ring_res():
     top_cell = cell
     dbu = ly.dbu
     cell = cell.layout().create_cell("RingResonator")
-    t = Trans(Trans.R0, 40 / dbu, 12 / dbu)
+    t = Trans(Trans.R0, 40 / dbu, 14 / dbu)
 
     # place the cell in the top cell
     top_cell.insert(CellInstArray(cell.cell_index(), t))
@@ -104,7 +104,8 @@ def dbl_bus_ring_res():
             x=0
         else:
             # next device is placed at the right-most element + length of the grating coupler
-            x = inst_dc2.bbox().right*dbu + gc_length + 1
+            # or 60 microns from the previous grating coupler, whichever is greater
+            x = max(inst_dc2.bbox().right*dbu + gc_length + 1, instGCs[0].trans.disp.x*dbu + 60)
 
         # get the parameters
         r = sweep_radius[i]