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Advanced filters: Author: Daniel Cletheroe Clear advanced filters

Analog optical computer for AI inference and combinatorial optimization

An analog optical computer that combines analog electronics, three-dimensional optics, and an iterative architecture accelerates artificial intelligence inference and combinatorial optimization in a single platform, paving a promising path for faster and sustainable computing.

Kirill P. Kalinin
Jannes Gladrow
Hitesh Ballani
ResearchOpen Access03 Sept 2025
Nature

Volume: 645, P: 354-361
Ultrafast optical circuit switching for data centers using integrated soliton microcombs

Optical technologies could enable fast and power-efficient networks for data centers. Here, the authors report Si₃N₄ microcomb based ultrafast photonic switching to provide enhanced performance for data center applications.

Arslan Sajid Raja
Sophie Lange
Hitesh Ballani
ResearchOpen Access15 Oct 2021
Nature Communications

Volume: 12, P: 1-7
Synchronous subnanosecond clock and data recovery for optically switched data centres using clock phase caching

A clock synchronization method, which is based on optical clock distribution and clock phase caching, can provide subnanosecond clock and data recovery times for fast optical switching in large-scale data centre networks using off-the-shelf commercial transceivers.

Kari A. Clark
Daniel Cletheroe
Zhixin Liu
Research22 Jun 2020
Nature Electronics

Volume: 3, P: 426-433