OxiPhoton 0.1.0 Released — Pure Rust Photonics Simulation & Optical Device Design

Another groundbreaking release on the same day for the COOLJAPAN ecosystem.

Today we shipped OxiPhoton 0.1.0 — a complete pure-Rust framework for electromagnetic wave propagation, optical device design, and photonics simulation.

3,908 passing tests.
Zero C/Fortran dependencies.
Type-safe optical units at compile time.

This is the day photonics and optical engineering finally have a sovereign, memory-safe Rust foundation.

Why OxiPhoton matters

Traditional photonics simulation tools (Lumerical, COMSOL, MEEP) are either proprietary, slow, or tied to heavy C++/Fortran backends.
OxiPhoton ends that dependency forever.

• 100% Pure Rust (built on OxiBLAS + OxiFFT)
• Type-safe units: Wavelength, Frequency, RefractiveIndex, Angle, Polarization
• Runs natively, in the browser (WASM), and on embedded devices
• GPU acceleration via wgpu + Rayon parallelism

What’s inside 0.1.0

• FDTD (2D/3D) with Yee-cell, CPML, Bloch BCs, dispersive & nonlinear materials
• Frequency-domain methods: Transfer Matrix Method (TMM), S-matrix, RCWA, BPM
• Mode solvers: 2D FD, FEM, coupled-mode, effective-index
• Silicon photonics device library (waveguides, couplers, resonators, modulators, AWG)
• Fiber optics: step/graded/PCF, NLSE, solitons, supercontinuum
• Photonic crystals, quantum photonics (Fock states, HOM, JC model), nonlinear optics (SHG, DFG, OPA)
• Built-in dispersive materials database (Si, SiO2, Au, Ag, GaAs, graphene, etc.)
• I/O: GDS, VTK, HDF5, Touchstone, Lumerical
• Inverse design & topology optimization

This is the foundation

OxiPhoton is now the photonics backbone for the entire COOLJAPAN stack — powering future optical computing, silicon photonics PIC design, quantum optics in oxilean, and advanced sensing in oxigdal / mielinOS agents.

Repository: https://github.com/cool-japan/oxiphoton

Star the repo if you’re building the optics and photonics systems of tomorrow.

More releases coming this week.

— KitaSan at COOLJAPAN OÜ
March 9, 2026