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#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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