All Articles
A running archive of essays, tutorials, case studies, and field notes from the Flexcompute engineering team.
Format
Author
Topic
Archive results
- →Essay
Learning Auto-Routing by Building: From Brute Force to an Auto-Design Agent
How I learned auto-routing for photonic chips — a failed brute-force attempt, AI as a learning partner, interactive HTML arenas, a PhotonForge router, and an agent that iterates 27 designs in under three minutes.
- →Case Study
Predicting Peak Memory for an Electromagnetic Mode Solver
How we replaced a heuristic memory estimate with a calibrated model for Tidy3D mode solver workloads, eliminating under-predictions across the calibration set.
- →Essay
Can AI Agents Autonomously Design Components on Photonic Chips?
We gave AI agents a photonic simulator, a DRC engine, and four design challenges. They autonomously designed waveguide bends, crossings, splitters, and demultiplexers — some reaching near-perfect performance.
- →Tutorial
Designing a Photonic Chip Component with ~45 Lines of Python
A compact introduction to photonic inverse design with Tidy3D, using a pre-built simulation and a ~45-line optimization loop.
- →Case Study AI Engineering
"What Should We Work On Next?"
The story of building an 80,000-line autodiff library almost entirely through AI agents — and the verification infrastructure that made it possible.
- →Essay AI Engineering
The Agent Control Loop — Engineering for Tolerance
Why agent reliability isn't magic model behavior — it's an environment where correctness is continuously verified. A framework for deciding when and how to delegate to AI agents.
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