tag: silicon photonics

Two Chip-Scale Photonic Systems For Optical Data Transmission & Microwave Photonics
By Technical Paper Link - 21 May, 2022 - Comments: 0

New research paper "Microcomb-driven silicon photonic systems" from Peking University, UCSB, and Peng Cheng Laboratory. Abstract "Microcombs have sparked a surge of applications over the past decade, ranging from optical communications to metrology. Despite their diverse deployment, most microcomb-based systems rely on a large amount of bulky elements and equipment to fulfil their desir... » read more

Week In Review: Manufacturing, Test
By Linda Christensen - 15 Apr, 2022 - Comments: 0

Photonic Chips Go Big In Europe PhotonDelta, a collaborative end-to-end supply chain for the application of photonics chips, secured €1.1 billion in conditional funding for a six-year initiative. Investments from the Netherlands government and other organizations “will be used to build 200 startups, scale up production, create new applications for photonic chips, and develop infrastructure... » read more

Graphene oxide 2D films integrated with nanowires and ring resonators for enhanced nonlinear optics
By Technical Paper Link - 12 Apr, 2022 - Comments: 0

New research paper from Optical Sciences Centre, Swinburne University of Technology. Abstract "We report enhanced nonlinear optics in nanowires, waveguides, and ring resonators by introducing layered two-dimensional (2D) graphene oxide (GO) films through experimental demonstration. The GO films are integrated on silicon-on-insulator nanowires (SOI), high index doped silica glass, and sili... » read more

Quantum well interband semiconductor lasers highly tolerant to dislocations
By Technical Paper Link - 11 Nov, 2021 - Comments: 0

Abstract "III-V semiconductor lasers integrated on Si-based photonic platforms are eagerly awaited by the industry for mass-scale applications, from interconnect to on-chip sensing. The current understanding is that only quantum dot lasers can reasonably operate at the high dislocation densities generated by the III-V-on-Si heteroepitaxy, which induces high non-radiative carrier recombination ... » read more

Analyzing Electro-Photonic Systems
By Brian Bailey - 30 Aug, 2021 - Comments: 1

The design and analysis of electro-optical systems is pushing tools into the complex multi-physics domain, making it challenging to create models that execute at reasonable cost — especially when they include thermal impacts. The lack of models and standards also is slowing the progression of the technology. Still the advantages are worth it to those willing to make the investment. Trad... » read more

Production Testing For Silicon Photonics Wafers
By David Viera - 10 Aug, 2021 - Comments: 0

Worldwide data centers and networks for communications currently consume about 8% of the Earth’s total energy produced. To meet the increasing demands for cloud storage, computing, and various emerging applications such as artificial intelligence, genomics revolution, and video transcoding, hyperscale data centers are being built around the world at an accelerated pace, with analysts predicti... » read more

11 Ways To Reduce AI Energy Consumption
By Bryon Moyer - 13 May, 2021 - Comments: 1

As the machine-learning industry evolves, the focus has expanded from merely solving the problem to solving the problem better. “Better” often has meant accuracy or speed, but as data-center energy budgets explode and machine learning moves to the edge, energy consumption has taken its place alongside accuracy and speed as a critical issue. There are a number of approaches to neural netw... » read more

Developers Turn To Analog For Neural Nets
By Bryon Moyer - 06 May, 2021 - Comments: 1

Machine-learning (ML) solutions are proliferating across a wide variety of industries, but the overwhelming majority of the commercial implementations still rely on digital logic for their solution. With the exception of in-memory computing, analog solutions mostly have been restricted to universities and attempts at neuromorphic computing. However, that’s starting to change. “Everyon... » read more

Testing Silicon Photonics In Production
By Bryon Moyer - 12 Jan, 2021 - Comments: 1

As silicon photonics costs come down, the technology is being worked into new applications, from connectivity to AI. But full commercial production requires testing those photonic circuits before shipping them. Photonics testing is only getting started. Volume production is still not happening, and test equipment and techniques are still being developed. What exists today is a blend of exist... » read more

Attaching Fibers To Photonic Chips
By Paul McLellan - 10 Dec, 2020 - Comments: 0

Recently, Cadence held its fifth photonics summit, CadenceCONNECT: Photonics Contribution to High-Performance Computing. You can read my earlier posts: Photonic Integration—From Switching to Computing How to Design Photonics If You Don't Have a PhD: iPronics and Ayar Labs The third day was all about how to connect the incoming and outgoing fibers to the photonics chips. I will cov... » read more

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