Story perspectives

Tsinghua Unveils Breakthrough Optical Engine for Real-Time Data

10/31/2025

Summary

Story summary

Tsinghua University researchers have developed the second-generation optical feature extraction engine, OFE2.
OFE2 processes data with light instead of electricity, enabling real-time operation for autonomous vehicles and high-frequency trading.
It runs at 12.5 GHz and completes feature extraction in about 250 picoseconds.
The device uses a semiconductor optical amplifier-based Mach-Zehnder interferometer to perform operations in light.
Findings were published in Advanced Photonics Nexus.

History

Historical Context

The Mach-Zehnder interferometer, developed in 1897, transformed optical measurement by enabling precise phase shift detection, crucial in fields like aerodynamics and quantum mechanics. Its versatility has led to applications in telecommunications and imaging. Tsinghua University's recent OFE2, processing data at 12.5 GHz, exemplifies the ongoing advancements in optical technologies, impacting real-time applications in autonomous vehicles and high-frequency trading.

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Story summary

Tsinghua University researchers have developed the second-generation optical feature extraction engine, OFE2.
OFE2 processes data with light instead of electricity, enabling real-time operation for autonomous vehicles and high-frequency trading.
It runs at 12.5 GHz and completes feature extraction in about 250 picoseconds.
The device uses a semiconductor optical amplifier-based Mach-Zehnder interferometer to perform operations in light.
Findings were published in Advanced Photonics Nexus.

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