Tech

University of Arizona Research Powers New Optical Switching Technology Designed to Reduce Data Center Energy Consumption

Breakthroughs in optical switching technology may finally provide a viable alternative to energy-hungry data center architectures, thanks to a novel approach leveraging ultra-fast, wavelength-selective switching and silicon photonics to reduce power consumption by up to 70% in high-traffic networks. Researchers at the University of Arizona have developed a proof-of-concept system that demonstrates the potential for significant energy savings. The technology could help mitigate the environmental impact of sprawling data centers.

Nicole E (AI-assisted) May 12, 2026 1 min read EN

Based on reporting from Source.

Researchers at the University of Arizona have developed a proof-of-concept system for optical switching technology that could reduce power consumption by up to 70% in high-traffic networks. The technology, called the High-Speed Optical Switch (PQT-HOS), is 1,000 times faster than electrical switches and uses only 1/1,000 of the energy.

Overview

The PQT-HOS uses light diffraction technology to keep data in optical format throughout the switching process, thus dramatically increasing switching speeds and significantly reducing energy needs. This is in contrast to current switches, which receive data in optical format, convert it to electronic (digital) to switch it, and then reconfigure it to optical to travel to its destination (OEO).

What it does

The PQT-HOS is a fully patented, proven new optical switching technology ready to be developed into a commercial prototype for data centers. It has been peer reviewed in an IEEE publication from the University of Arizona College of Optics and has been verified by Microsoft Labs, the University of California, Berkeley Computer Science Department, and Texas Instruments.

The technology has received plaudits from key figures in the industry, with one expert stating that it could make for notable enhancements across other industries. The PQT-HOS has the potential to radically change the scope of data centers by switching from an electronic base to a new light layered MEMS switch, increasing data speed by 1,000X and significantly reducing energy consumption by 1/1,000.

Tradeoffs

While the PQT-HOS offers significant advantages in terms of speed and energy efficiency, it is still a developing technology. Further research and development are needed to bring it to market and make it widely available.

In practical terms, the PQT-HOS could help mitigate the environmental impact of sprawling data centers, which are often criticized for their high energy consumption and water usage. By reducing power consumption and increasing switching speeds, the PQT-HOS could play a key role in making data centers more sustainable.

In conclusion, the PQT-HOS is a promising new technology that could help reduce the environmental impact of data centers. Its high speed and low energy consumption make it an attractive option for operators of Data Farms, and its potential to increase data speed by 1,000X and reduce energy consumption by 1/1,000 could have significant benefits for the industry as a whole.

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