New forge coding added

2026-06-04 23:21:39 +08:00
parent 518eb06591
commit 8da92ced57
288 changed files with 52017 additions and 1913 deletions
@@ -0,0 +1,52 @@
+
+import numpy as np
+from ..primitives.passive import DC_bend
+
+
+class DC_bend_50_50_Cband(DC_bend):
+    
+    def __init__(self, w_wg: float, show_pins: bool=False) -> None:
+        '''
+        This is a wideband 50/50 Direction Coupler based on bend directional coupler, from 1500nm to 1600nm. 
+        '''
+        w_in = 0.45 
+        w_out = 0.45
+        gap = 0.2
+        r_in = 60
+        coupling_length = 19.08
+        theta_arc = coupling_length / (r_in+gap/2+w_in/2) * 180 / np.pi
+        super().__init__(w_in=w_in, w_out=w_out, gap=gap, r_in=r_in, theta_arc=theta_arc, w_wg=w_wg, theta_ext=10, xs_wg="strip", show_pins=show_pins)
+        self.cell = self.generate_gds(cellname="_50_50_Cband")
+
+
+class DC_bend_20_80_Cband(DC_bend):
+    '''
+    This is a wideband 20/80 Direction Coupler based on bend directional coupler, from 1500nm to 1600nm.
+    Through:    80%
+    Cross:      20% 
+    '''
+    def __init__(self, w_wg: float, show_pins: bool=False) -> None:
+        w_in = 0.45 
+        w_out = 0.45
+        gap = 0.2
+        r_in = 41
+        coupling_length = 19.6
+        theta_arc = coupling_length / (r_in+gap/2+w_in/2) * 180 / np.pi
+        super().__init__(w_in=w_in, w_out=w_out, gap=gap, r_in=r_in, theta_arc=theta_arc, w_wg=w_wg, theta_ext=10, xs_wg="strip", show_pins=show_pins)
+        self.generate_gds(cellname="_20_80_Cband")
+
+class DC_bend_4_96_Cband(DC_bend):
+    '''
+    This is a wideband 20/80 Direction Coupler based on bend directional coupler, from 1500nm to 1600nm.
+    Through:    96%
+    Cross:      4% 
+    '''
+    def __init__(self, w_wg: float, show_pins: bool=False) -> None:
+        w_in = 0.45 
+        w_out = 0.45
+        gap = 0.2
+        r_in = 30
+        coupling_length = 18.9
+        theta_arc = coupling_length / (r_in+gap/2+w_in/2) * 180 / np.pi
+        super().__init__(w_in=w_in, w_out=w_out, gap=gap, r_in=r_in, theta_arc=theta_arc, w_wg=w_wg, theta_ext=10, xs_wg="strip", show_pins=show_pins)
+        self.generate_gds(cellname="_4_96_Cband")