A library, not just an app

The simulator is a Rust crate you can use on its own. Circuits compile per wavelength into a flat program: straight-through parts become SIMD multiply-adds over whole batches of inputs, and feedback loops get an LU factorisation computed once.

Exact

Steady state solved as a linear system; loops and resonances need no iteration limit.

Fast

Batched SIMD kernels with runtime CPU dispatch; wavelength sweeps run in parallel.

Composable

Rings, meshes, switch trees and WDM demultiplexers are blocks you can nest.

Compact files

Projects save in a binary .shine format, about five times smaller than JSON.

A Mach–Zehnder in a few lines

use shine::photonics::*;

let mut c = Circuit::new();
let laser = c.add(Laser::new(1.0, 1550.0));
let split = c.add(DirectionalCoupler::balanced());
let heat  = c.add(PhaseShifter::new(std::f64::consts::PI));
let join  = c.add(DirectionalCoupler::balanced());
let pd    = c.add(Detector::new());
c.connect(laser.output(0), split.input(0))?;
c.connect(split.output(0), heat.input(0))?;
c.connect(heat.output(0), join.input(0))?;
c.connect(split.output(1), join.input(1))?;
c.connect(join.output(0), pd.input(0))?;

let power = c.simulate(1550.0, &[])?.detected_power(pd); // 1.0

Read the library guide → · Source on GitHub →