On chip optical interconnect roadmap software

This article is designed to provide a survey of on chip optical technologies covering the basic physics underlying the operation of optical technologies, optical devices, popular. New cmos chip can process both light and electricity. We propose and demonstrate an optical signal processor performing matrixvector multiplication, which is composed of lasermodulator array, multiplexer, splitter, microring modulator matrix and photodetector array. However, for this scenario to occur, one requires onchip optical modulators, detectors and waveguides, which add additional masks, process steps and cost. Propagation delay of silicon and polymer waveguides as compared to eis. Onchip optical interconnects versus electrical interconnects. A survey of onchip optical interconnects acm computing. Cmp network on chip overlaid with multiband rf interconnect. Flip chip oes 90deg beam turn simple io fc oes available high accuracy critic. Researchers at ibm have created an optical computer chip that can transmit and receive data at up to one terabit per second 1tbps. Friedman, title onchip optical interconnect roadmap. An overview of advanced interconnect solutions ta nfo rdu ivesy 2 ee311interconnect araswat outline current culowk paradigm. Optical bus for intra and interchip optical interconnects. Sockets 105 a and 105 b may be located at remote locations on the same circuit board 305 as illustrated to provide intraboard chip to chip optical communications, or on different circuit boards to provide boardtoboard.

May, 2008 chip to chip optical interconnect 100 enables ics 165a and 165b to communicate using a high bandwidth optical carrier. Multi chip modules in which electronics and photonics building blocks. We demonstrate recent advances in the area of optical rambased cache memory technology and in the area of optical interconnect technologies for allowing the deployment of a disintegrated computational setting where offchip optical cache modules can be connected to cachelight chip multiprocessors and dram modules. Christine chen, sharon hall, ron kaneshiro, larry mccollough, david meadowcroft, frederick w. Instead of using a large silicon interposer typically found in other 2.

An onchip optical interconnect of a light emitter, waveguide and photodetector based on pn junction ingangan multiple quantum wells mqws. Substratebased optical interconnect technologies photonic substrate packaging and embedding for optoelectronic and microoptical components. Intel silicon photonics update at interconnect day 2019. Therefore there is a need for radically different interconnect approaches and one of the most promising solutions is the use of an optical interconnect layer. For standalone optical transceivers, cmoscompatible optical interconnect. Development of optical interconnect pcbs for highspeed. Optical interconnect to silicon cmos chip page 2 of 2. Networkonchip design with rf interconnects for future chip. The communicationscentric nature of future high performance computing devices demands a fundamental change in intra and interchip interconnect. Intrachip optical interconnects ois have the potential to outperform electrical wires and to ultimately solve the communication bottleneck in highperformance integrated circuits. Optical interconnects for short reach applications 7 applications per link length within data center.

Optical interconnect and memory technologies for next. In order to control the optical signals inside the small ic package properly, microelectromechanical system mems technology can be used to integrate the optical components i. Roadmap for board level optical interconnects theyre coming sooner than you think. Albonesi, acm journal on emerging technologies in computing systems, special issue on nanophotonic communication technology integration, vol. Overview of optical interconnect technology sumita mishra, naresh k chaudhary, kalyan singh abstract optical interconnect is seen as a potential solution to meet the performance requirements of current and future generation of data processors. Around 2006 or 2007, we expect to see commerciallevel optical interconnect technology at the. Indeed, in our latest work, 6 we have shown see figure 2 that the plasmonic slot waveguide exhibits an excellent capability for slowing guided light inside it. Media oppptions for chiptochip communications technology examples distance comments embedded electronic.

Challenges and critical directions mikhail haurylau. Onchip optical communication for multicore processors. Department of electrical and computer engineering department of physics and astronomy university of rochester, rochester ny, 14627, usa. A low latency, high throughput on chip optical router architecture for future chip multiprocessors, m. Challenges and limitations alternatives c irc utahe a lc omb ns s technological solutions airgaps 3d technologies optical. Jing xue, alok garg, berkehan ciftcioglu, jianyun hu, shang wang ioannis savidis, manish jain, rebecca berman, peng liu michael huang, hui wu, eby friedman, gary wicks, duncan moore dept. Optical interconnect to silicon cmos chip electronics for you. To understand why optical connections may be important at short distances, we need first to understand the limitations of electrical wiring and where they come from. Optical bus for intra and interchip optical interconnects xiaolong wang omega optics inc. Picmarket is strongly dominated by inppics, and silicon photonics products are now becoming established as well. Optical interconnects have negligible frequency dependent loss, low.

Breakthrough speeds for chip to chip interconnnectivity and intrachip optical networking. An on chip optical interconnect of a light emitter, waveguide and photodetector based on pn junction ingangan multiple quantum wells mqws is fabricated to investigate the light coupling. Onchip optical interconnect using visible light springerlink. Outline perspective of optical backplane bus optical bus architectures based on fully. Integrated optical networks on chip could be good candidates to overcome predicted interconnect limitations, as identified by the itrs roadmap. In spite of that, optical interconnect still has ascendancy over electrical one with the same channel number. For guidedwave optical system, one can use a thin optical fibre cable, waveguide etc. Optics may allow interconnects to continue to scale to match the processing ability of future electronics chips, though very lowenergy optoelectronic devices and novel compact optics will be needed. Networkonchip design with rf interconnects for future. Photonics21, photonics roadmap, europes age of light. Abstract intrachip optical interconnects can outperform elec trical wires but the. Introduction continued device scaling enables microprocessors and. The proposed monolithic optical interconnect opens a promising way toward the diverse applications from inplane visible light communication to lightinduced artificial synaptic devices, intelligent display, onchip imaging, and optical sensing.

The article discusses how the performance of optical interconnect is better than of electrical interconnect and how optical interconnection between highspeed vlsi silicon cmos chips can enhance their performance further. To put this into perspective, the ddr3 interconnect between cpu. Permission to make digital or hard copies of all or part of this work for. Miller, fellow ieee the performance of silicon cmos chips is improving because of reduction in the feature size of integrated circuits.

Interconnect density the most obvious problem limiting interconnects over long wires is signal attenuation. In cooperation with the jeppix software partners the contents of. Terabus is based on a siliconcarrier interposer on an organic card containing 48 polymer waveguides. Silicon photonics is a combination of two of the most important inventions of the 20th centurythe silicon integrated circuit and the semiconductor laser. Iec optical backplane roadmap 86374dc 2010 20% reduction in power consumption. In this paper, we investigate the integration of cmoscompatible optical technology to onchip cachecoherent buses in future cmps. As a result, most efforts in this area have used separate chips. An onchip optical interconnect of a light emitter, waveguide and photodetector based on pn junction ingangan multiple quantum wells mqws is fabricated to investigate the light coupling. Optical navigation division optical interconnects for chip to chip communications mitchell fields, ph.

Optical interconnects an overview sciencedirect topics. A low latency, high throughput onchip optical router architecture for future chip multiprocessors, m. Although silicon optical technology is still in its formative stages, and the more nearterm application is chiptochip communication, rapid advances have been made in the development of onchip optical interconnects. We report on recent experimental results obtained within the fp7 project. Jeppix roadmap 2018 waferscale integration of photonics and. Intel has long held the vision of disaggregated compute, storage, and memory sleds for the data center, connected via silicon photonics optics.

Now, optical interconnect is showing promise for ultrashortreach applications in its ability to support far higher bandwidth than the metal wires that now carry data from board to. The traditional model of building generalpurpose enterprise compute boxes that endusers can configure with storage and networking to assemble their desired compute environments, has evolved to purposebuilt. An optical fibre having a diameter of up to 10 m can be used for onchip optical interconnect. Monolithic optical interconnect chip integrates the emitter, waveguide, base, and collector into a multicomponent system with a common base.

Challenges and limitations alternatives c irc utahe a lc omb ns s technological solutions airgaps 3d technologies optical interconnects wireless summary. Integrated optical networks onchip could be good candidates to overcome predicted interconnect limitations, as identified by the itrs roadmap. Doerr c et al 2014 singlechip silicon photonics 100gbs coherent transceiver optical fiber communications conf. Roadmap for semiconductors itrs has highlighted interconnect scaling as a problem for the semiconductor industry. Colorchip exhibiting family of 100g qsfp28 transceivers. All functional units can be ultimately monolithically. Haurylau et al onchip optical interconnect roadmap. Department of electrical and computer engineering department of physics and astronomy. Optical interconnects in engineered systems abstract.

Increasing passive device functional density on chip. Performance targets and critical directions for ics progress are yet to be fully. Optical interconnects for chiptochip communications. Optical interconnects are being incorporated into data centers and the. This article is designed to provide a survey of onchip optical technologies covering the basic physics underlying the operation of optical technologies, optical devices, popular. Onchip optical interconnects chip to chip optical interconnects incoming short laser pulse grating grating fiber receiver chip modulator chip signal wires reduce delay increase bandwidth clock distribution reduce jitter and skew io with very high bandwidth reduce power ta nfo rdu ivesy 16 ee311 interconnect araswat electrical. Embedded multidie interconnect bridge emib is an elegant and costeffective approach to inpackage high density interconnect of heterogeneous chips. Interconnect technology beyond the roadmap a white paper prepared for src. A new class of highspeed optical connectivity products. Colorchip exhibiting family of 100g qsfp28 transceivers, providing building block platform for optical interconnect solutions to 200400g and beyond. Although coppercontaining chips were introduced in 1998 with silicon. Potential of slot waveguides for siliconbased optical.

A software framework for rapid applicationspecific hybrid photonic. New design methodologies to minimize communication on a chip optical interconnects for onchip and chiptochip interconnects rfwireless interconnect for inter and intrachip communications threedimensional ics with multiple layers of active devices. Osa onchip cmoscompatible optical signal processor. Rationale and challenges for optical interconnects to. Slow light with photonic crystals for onchip optical. Leveraging optical technology in future busbased chip.

Rationale and challenges for optical interconnects to electronic chips david a. The highperformance server compute landscape is changing. In efforts toward creating practical chiplevel optical interconnects, researchers in canada present the first nanoscale tube based photodetector, compatible. But for ai to be useful, software solutions and computers will not be practical on. Optical interconnect to silicon cmos chip electronics. Integrated optical networksonchip could be good candidates to overcome predicted interconnect limitations, as identified by the itrs roadmap. Oct 27, 2017 suspended waveguides interconnect the emitter with the collector to form inplane light coupling. Most of the comparisons have been based on systemlevel analysis. Miller, fellow, ieee invited paper the various arguments for introducing optical interconnections to silicon cmos chips are summarized, and the challenges for optical, optoelectronic, and integration technologies are discussed. A survey of onchip optical interconnects acm computing surveys. In 2nd international conference on group iv photonics, pages 1719, antwerp, belgium, september 2005.

May 10, 2004 optical interconnect technology could begin to play a significant role by the middle of this decade. Challenges and critical directions, authormikhail haurylau and guoqing chen and hui chen and jidong zhang and n. Ieee journal of selected topics in quantum electronics 12, 6 2006, 16991705. It enables faster data transfer over longer distances compared to traditional electronics, while utilizing the efficiencies of intel. The 1999 international roadmap for semiconductors itrs emphasized an ongoing. The addressable market for the optical interconnect links could then quickly run into the billions of units. Breakthrough speeds for chiptochip interconnnectivity and intrachip optical networking. Optical networks already feature in the roadmaps of major processor manufacturers and most onchip optical devices are beginning to show signs of maturity. Low loss beam turn direct coupling oechip in cavity or. Optical networks already feature in the roadmaps of major processor manufacturers and most on chip optical devices are beginning to show signs of maturity. While traditional noc relies on electrical signals to transfer information, hence called electrical network on chip enoc, its performance and energy efficiency are bound by the significantly unbalanced scaling of on chip global metal wires comparing to transistors. We demonstrate recent advances in the area of optical rambased cache memory technology and in the area of optical interconnect technologies for allowing the deployment of a disintegrated computational setting where off chip optical cache modules can be connected to cachelight chip multiprocessors and dram modules. An intrachip freespace optical interconnect conference paper pdf available in acm sigarch computer architecture news 383. The signals from the photodiodes triggered of the circuitries at 5 ghz.

While traditional noc relies on electrical signals to transfer information, hence called electrical networkonchip enoc, its performance and energy efficiency are bound by the significantly unbalanced scaling of onchip global metal wires comparing to transistors. Potential advantages of optical interconnects over electrical interconnects have been extensively discussed in literature. Challenges and critical directions, ieee journal of selected. We report on recent experimental results obtained within. Optical interconnects for chiptochip communications mitchell fields, ph. The results of our studies 6 also demonstrate the great potential of the siliconbased slot waveguide as an optical interconnect, i. During intel interconnect day 2019, the company showed why its photonics have moved from a lab project to shipping in volume. Optical interconnects for some of the longest interconnects on the chip, optical links might give better performance than copper, when wavelength division multiplexing wdm is used. The broadest portfolio of highly reliable server storage products in the industry offers the connectivity, performance. However, for this scenario to occur, one requires on chip optical modulators, detectors and waveguides, which add additional masks, process steps and cost. Interconnect technology beyond the roadmap mafiadoc. This work is supported by nsf under grant 0829915 and also in part by grants 0747324 and 0901701.