Photonic memory · engineering preview

Memory,
refracted.

Prism stores data as a standing interference pattern of laser light, locked inside a photonic crystal lattice. No electrons to refresh, no capacitors to leak — just light, held still.

DDR5-compatible pinout JEDEC-adjacent protocol Samples ship Q1 2028
0.4 ns
Read latency
3.2 TB/s
Bandwidth per module
512 GB
Capacity per DIMM
0 mW
Standby power — no refresh cycles
How it works

Three steps from photon to bit.

Prism replaces the capacitor-and-transistor cell with a waveguide etched directly into a photonic crystal substrate. Data is written, held, and read entirely in light.

01

Encode

A laser diode array modulates incoming bits into a coherent photon pulse pattern, routed through waveguides etched into the lattice substrate.

02

Lock

The pulse interferes within the photonic crystal lattice, freezing the standing-wave pattern as a stable, non-volatile state — no power required to hold it.

03

Read

A low-power probe beam samples the interference pattern via phase-sensitive detection, returning data at picosecond resolution without disturbing the stored state.

Where it lands

Bandwidth, next to what you know.

Measured per-module sequential bandwidth. Log scale — each gridline is a 10× step.

1 10 100 1,000 10,000 NAND SSD 7 GB/s DDR5 DIMM 64 GB/s HBM3 819 GB/s Prism 3,200 GB/s
Module lineup

Three form factors, one lattice.

All modules share the same photonic die and JEDEC-adjacent pinout — pick the capacity and interconnect for your platform.

Consumer · C1

Prism C1

$349
  • Capacity32 GB
  • Bandwidth1.6 TB/s
  • Form factorSO-DIMM
Datacenter · D1

Prism D1

Contact sales
  • Capacity512 GB
  • Bandwidth3.2 TB/s
  • Form factorInterposer