tag: photonics

Research Bits: April 23
By Jesse Allen - 23 Apr, 2024 - Comments: 0

Probabilistic computer prototype Researchers at Tohoku University and the University of California Santa Barbara created a prototype of a heterogeneous probabilistic computer that combines a CMOS circuit with a limited number of stochastic nanomagnets. It aims to improve the execution of probabilistic algorithms used to solve problems where uncertainty is inherent or where an exact solution... » read more

RF General-Purpose Photonic Processor
By Technical Paper Link - 17 Apr, 2024 - Comments: 0

A new technical paper titled "General-purpose programmable photonic processor for advanced radiofrequency applications" was published by researchers at Universitat Politècnica de València and iPronics. Abstract "A general-purpose photonic processor can be built integrating a silicon photonic programmable core in a technology stack comprising an electronic monitoring and controlling layer ... » read more

Linear Drive Optics May Reduce Data Latency
By Karen Heyman - 11 Apr, 2024 - Comments: 0

Optical and electrical are starting to cross paths at a much deeper level, particularly with the growing focus on 3D-ICs and AI/ML training in data centers, driving changes both in how chips are designed and how these very different technologies are integrated together. At the root of this shift are the power and performance demands of AI/ML. It can now take several buildings of a data cente... » read more

Fabrication Of Vertical-Taper Structures For Silicon Photonic Devices By Using Local-Thickness-Thinning Process
By Advantest - 09 Apr, 2024 - Comments: 0

Authors: Shunsuke Abe, Hideo Hara, Shin Masuda, and Hirohito Yamada. This paper describes a simple fabrication process of verticaltaper structures which can locally tune the thickness of silicon photonic devices. For low-loss spot-size conversion, taper angles less than 10° are required. To fabricate the gradual-slope shape of the vertical tapers, we have developed a step-andexposure lithog... » read more

Chip Industry Week In Review
By The SE Staff - 29 Mar, 2024 - Comments: 0

By Adam Kovac, Karen Heyman, and Liz Allan.  China introduced strict procurement guidelines aimed at blocking the use of AMD and Intel processors in government computers. Meanwhile, China urged the Netherlands to ease restrictions on deep ultraviolet (DUV) litho equipment, according to Nikkei Asia. DUV is an older technology, based on 193nm ArF lasers, but in conjunction with multi-p... » read more

Photonic Compact Chip That Seamlessly Converts Light Into Microwaves (NIST, et al.)
By Technical Paper Link - 15 Mar, 2024 - Comments: 0

A new technical paper titled "Photonic chip-based low-noise microwave oscillator" was published by researchers at NIST, University of Colorado Boulder, California Institute of Technology, UCSB, University of Virginia and Yale University. Abstract "Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has b... » read more

Photonics: The Former And Future Solution
By Karen Heyman - 14 Mar, 2024 - Comments: 0

Experts at the Table: Semiconductor Engineering sat down to talk about where photonics is in the hype cycle and its secure role in data centers, with James Pond, fellow at Ansys; Gilles Lamant, distinguished engineer at Cadence; and Mitch Heins, business development manager for photonic solutions at Synopsys. What follows are excerpts of that conversation. [L-R]: Ansys’ Pond, Cadence�... » read more

Reprogrammable Light-Based Processor (RMIT)
By Technical Paper Link - 12 Mar, 2024 - Comments: 0

A new technical paper titled "Programmable high-dimensional Hamiltonian in a photonic waveguide array" was published by researchers at RMIT University, ETH Zurich, Griffith University, Heriot-Watt University, University of Muenster Purdue University and others. Abstract "Waveguide lattices offer a compact and stable platform for a range of applications, including quantum walks, condensed m... » read more

Directly Writing and Rewriting Photonic Chips on Low-Loss Phase-Change Thin Films
By Technical Paper Link - 15 Feb, 2024 - Comments: 0

A technical paper titled “Freeform direct-write and rewritable photonic integrated circuits in phase-change thin films” was published by researchers at University of Washington, University of Maryland, and Tianjin University. Abstract: "Photonic integrated circuits (PICs) with rapid prototyping and reprogramming capabilities promise revolutionary impacts on a plethora of photonic technolo... » read more

Photonics: Harnessing The Power of Light
By Raha Vafaei - 15 Feb, 2024 - Comments: 0

All around us, light is at work. The cameras on our phones, the parking sensors in our cars, the monitors on our desks — all are using the power of light to improve our daily lives thanks to a field of study called “photonics.” What is photonics? Photonics is a multidisciplinary domain that involves the generation, control, manipulation, and detection of light. Light, a form of elect... » read more

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