Path to optical links still dark
February 21, 2012 // Rick Merritt
Experts agree printed circuit boards and processors will eventually need optical interconnects. But just when and how the industry will get there is still unclear.
A byte-per-flop gap is opening up thats a major limit on architectures that gets worse and worse as we head to 2020 and beyond, said David Miller, an optical research lab at Stanford, speaking in an evening panel at the International Solid-State Circuits Conference.
We are getting close to the point where optical is more attractive, said John Stonick, a Synopsys scientist and chair of the panel. But optical interconnects have always been the next thing, and the big questions are when and how we get there, he said.
Keishi Ohashi, an optical expert from NEC Corp., said optical may follow a path like hard disk technologies. It took nearly twenty years for powerful magneto-resistive heads to emerge from their beginnings in labor-intensive magnetic coils, he said.
Bert Offrein, an optical expert with IBM Research, noted milestones and challenges IBM has seen. In 2008, the company built Roadrunner, the first petaflop computer, using optical interconnects to each server board.
Last year IBM created its Power P775 high-end server that brought optical links to the processor. It fused 56 fibre cables to modules with 56 transceivers integrated with help from Avago on to each IBM CPU.
It required 100 additional assembly steps to bring the optics to the chips in addition to building transceivers themselves, said Offrein. Thats justified for some high-performance systems, but for general servers we need something easier, he said.All news
Micrel's 10 criteria for choosing a MEMS foundry
April 18, 2014
Micrel Inc. (San Jose, Calif.) has prepared an article that lays out the 10 criteria to help guide someone in the choice ...
Superconducting qbits made immune to quasiparticle energy loss
The Filter Wizard: Just add a transistor
Mobile display revenues soar, leaving TV behind
European organic PV project aims for material gains
Nanomaterial-packed cathode extends range of EV lithium-sulfur batteries
April 17, 2014
Researchers at the USA's Department of Energy Pacific Northwest National Laboratory have developed a metal organic framework ...
Wearable computing market on 78% CAGR through 2018
OLED TV shipment delays stall OLED material growth
BMW updates navigation via mobile radio connection
- USB 5V 2.5A Output, 42V Input Synchronous Buck with Cable Drop Compensation
- Measurement applications across multiple test platforms
- Supplying DC input power to string inverters
- Supplying DC input power for HEV testing
InterviewHeartbleed challenges the Internet of Thing
The Heartbleed security bug is a key example of the fundamental security challenge for the Internet of Things says Green Hills Software as it launches a new security group.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Arrow Electronics is giving away ten XMC1200 lighting application kits, worth 100 Euros each, for EETimes Europe's readers to win.
Each kit combines Infineon’s brightness and colour control XMC1200 CPU board to drive flicker free LED dimming and colour changing, together with a colour LED card and a white LED card.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.