Initial release

1 files changed, 76 insertions, 0 deletions

diff --git a/src/devices/mesh_col.h b/src/devices/mesh_col.h
new file mode 100644
index 0000000..e0a6066
--- /dev/null
+++ b/src/devices/mesh_col.h
@@ -0,0 +1,76 @@
+#pragma once
+
+#include <systemc.h>
+#include <specs.h>
+#include <spx_module.h>
+#include <mzi.h>
+#include <waveguide.h>
+
+/**
+ * This class implements a single column of an MZI mesh
+ * specified in the work: Optimal design for universal multiport interferometers
+ * by Clements et al. (2016).
+*/
+
+class MeshCol : public spx_module{
+public:
+    // Ports
+    vector<unique_ptr<spx::oa_port_in_type>> p_in;
+    vector<unique_ptr<spx::oa_port_out_type>> p_out;
+    vector<unique_ptr<sc_in<double>>> p_vphi;
+    vector<unique_ptr<sc_in<double>>> p_vtheta;
+
+    // Member variables
+    size_t m_N; // represents the number of inputs of the mesh (rows)
+    size_t m_j; // represents the current row being evaluated
+
+    // Parameters for the internal MZIs
+    double m_length_cm;
+    double m_attenuation_wg_dB_cm;
+    double m_attenuation_coupler_dB;
+    double m_attenuation_ps_dB;
+    double m_neff;
+    double m_ng;
+
+    // Submodules
+    vector<unique_ptr<MZI>> m_mzi;
+    vector<unique_ptr<Waveguide>> m_wg;
+
+
+    // Initialization functions
+    void init_ports();
+    void init();
+
+    void init_N_even_j_even();
+    void init_N_even_j_odd();
+
+    void init_N_odd_j_even();
+    void init_N_odd_j_odd();
+
+    /** Constructor for MZI Mesh Column
+     *
+     * @param name name of the module
+     * @param N number of rows contained in the module
+     * @param j current column being created, from 0 to N-1
+     * */
+    MeshCol(sc_module_name name, const size_t &N, const size_t &j,
+            const double &length_cm = 1e-2,
+            const double &attenuation_wg_dB_cm = 0, const double &attenuation_coupler_dB = 0,
+            const double &attenuation_ps_dB = 0,
+            const double &neff = 2.2111, const double &ng = 2.2637)
+        : spx_module(name)
+        , m_N(N)
+        , m_j(j)
+        , m_length_cm(length_cm)
+        , m_attenuation_wg_dB_cm(attenuation_wg_dB_cm)
+        , m_attenuation_coupler_dB(attenuation_coupler_dB)
+        , m_attenuation_ps_dB(attenuation_ps_dB)
+        , m_neff(neff)
+        , m_ng(ng)
+    {
+        assert(N > 1);
+        assert(j < N);
+
+        init_ports();
+    }
+};
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