Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > World record in silicon integrated nanophotonics - More energy efficiency in the data communication

Abstract:
Researchers of the Institute of Electrical and Optical Communications Engineering (INT) at the University of Stuttgart and the Institut für Mikroelektronik Stuttgart (IMS CHIPS) achieved a new world record in the energy efficient integration in silicon. This is an important step to decrease the energy consumption of data transfer in internet and telecommunication. The researchers optimized aperiodic grating couplers in the nanometer range with a new developed backside metal mirror. Through this new method a record coupling efficiency of 87 percent between optical fibers and photonic integrated waveguides on silicon wafers has been achieved.

World record in silicon integrated nanophotonics - More energy efficiency in the data communication

Stuttgart, Germany | Posted on July 4th, 2013

The internet and telecommunications are based on an optical core network that connects cities worldwide using glass fibers. These can carry light with very low losses over long distances. Based on a study published by CISCO, the mobile data transfer (smartphones) will solely increase from 885 petabytes per month (end of 2012) up to ten exabytes per month in the year 2017. To avoid a similar increasing energy consumption of our telecommunication systems, more efficient networks have to be developed, which represents nowadays a very interesting and actual research field.

Researchers of the INT and IMS CHIPS have developed a fabrication process to realize complex sender and receiver structures that are
integrated on silicon wafers. Hitherto existing optical senders and receivers are based on indium phosphide substrates, which are available only in small dimensions and to very high costs. Experts predict that optical connections will be necessary in the home computer of the year 2020 to exchange the huge amount of data between individual components of the computer. The used light has a frequency of around 192 Terahertz and hence can offer bandwidths of several Terahertz and data rates beyond 1 Terabit/s. Thus, worldwide researchers try to develop new components to make use of these tremendous data rates in commercial products. Since silicon is transparent at the used light frequency, this material can be utilized in waveguiding structures. Computing based on photons
in nanoelectronic circuits can be then achieved in future computer components.

For this purpose light has to be efficiently guided in silicon waveguides and coupled from one component to another. The resulting energy losses have to be kept as small as possible. Researchers of the University of Stuttgart achieved a new world record in coupling efficiency between optical fibers and integrated silicon waveguides based on the new developed aperiodic grating coupler structures that are fabricated using the technology process of IMS CHIPS. With a record of 87 percent and a bandwidth of around 40 nm the new structures can pave the way for more efficient integration of optical senders and receivers in silicon.

In this complementary-metal-oxide-semiconductor fabrication process other components such as polarization beam splitters based on grating structures are also realized. The University of Stuttgart and IMS CHIPS achieved here as well promising results, which makes them leading in the integration of optical components in silicon. The researches will be concretized in commercial products with the support of industrial partners to achieve cost effective integrated senders and receivers in silicon that enable data rates beyond 1 Terabit/s.

The results will be published in September at the European Conference on Optical Communications in London (www.ecoc2013.org/).

####

About University of Stuttgart
University with main emphasis on engineering and natural sciences, combined with the humanities and the social sciences.

About INT

The institute of Electrical and Optical Communications
Engineering belongs to the faculty of “Computer Science, Electrical Engineering
and Information Technology” at the University of Stuttgart. Under the direction
of Prof. Manfred Berroth, the INT employs 22 members, active in research,
teachings, and administration. The main competences of the institute are
modeling, design, and measurement of integrated electrical and photonic
circuits and efficient power amplifiers. The institute is also a member of the
Stuttgart Center of Photonic Engineering (SCoPE), which supports the
interdisciplinary cooperation between the different departments of physics,
electrical and mechanical engineering at the University of Stuttgart.

About IMS CHIPS

The Institut für Mikroelektronik Stuttgart (IMS CHIPS) is a
public law foundation in Baden-Württemberg. It is engaged in industry oriented research
and development in the fields of silicon technology, application specific integrated
circuits (ASIC), nanostructuring, and imaging sensors. The institute offers
complete solutions for small and medium enterprises and is a partner of
national and international large concerns. Under the direction of Prof. Joachim
Burghartz, IMS CHIPS is composed of 80 highly qualified employees, which are
involved in the development of new products in the microelectronics and
microsystems and their transfer into production lines.

For more information, please click here

Contacts:
Andrea Mayer-Grenu
+ 49.711.685-82176


Prof. Manfred Berroth
Wissem Sfar Zaoui
University of
Stuttgart
Institute of Electrical und Optical Communications Engineering
(INT)
Tel. 0711/685-67922, -67892
E-Mail: berroth (at) int.uni-stuttgart.de
wissem.sfarzaoui (at) int.uni-stuttgart.de

Prof. Joachim Burghartz
Dr. Jörg Butschke
und
Dr. Florian Letzkus
Institut für Mikroelektronik Stuttgart (IMS)
Tel: 0711/21855-200, -453, -451
E-Mail: burghartz (at) ims-chips.de
butschke (at) ims-chips.de
letzkus (at) ims-chips.de

Copyright © AlphaGalileo

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Haydale Secures Exclusive Development and Supply Agreement with Tantec A/S: New reactors to be built and commissioned by Tantec A/S represent another step forward towards the commercialisation of graphene October 24th, 2014

QuantumWise guides the semiconductor industry towards the atomic scale October 24th, 2014

MEMS & Sensors Technology Showcase: Finalists Announced for MEMS Executive Congress US 2014 October 23rd, 2014

Nanoparticle technology triples the production of biogas October 23rd, 2014

Discoveries

QuantumWise guides the semiconductor industry towards the atomic scale October 24th, 2014

Iranian, Malaysian Scientists Study Nanophotocatalysts for Water Purification October 23rd, 2014

Nanoparticle technology triples the production of biogas October 23rd, 2014

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

Announcements

Haydale Secures Exclusive Development and Supply Agreement with Tantec A/S: New reactors to be built and commissioned by Tantec A/S represent another step forward towards the commercialisation of graphene October 24th, 2014

QuantumWise guides the semiconductor industry towards the atomic scale October 24th, 2014

Advancing thin film research with nanostructured AZO: Innovnano’s unique and cost-effective AZO sputtering targets for the production of transparent conducting oxides October 23rd, 2014

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals

NYU Researchers Break Nano Barrier to Engineer the First Protein Microfiber October 23rd, 2014

Iranian Scientists Apply Nanotechnology to Produce Surgery Suture October 23rd, 2014

Iranian, Malaysian Scientists Study Nanophotocatalysts for Water Purification October 23rd, 2014

Strengthening thin-film bonds with ultrafast data collection October 23rd, 2014

Photonics/Optics/Lasers

Physicists build reversible laser tractor beam October 20th, 2014

Magnetic mirrors enable new technologies by reflecting light in uncanny ways October 16th, 2014

New VDMA Association "Electronics, Micro and Nano Technologies" founded: Inaugural Meeting in Frankfurt/Main, Germany October 15th, 2014

Nanodevices for clinical diagnostic with potential for the international market: The development is based on optical principles and provides precision and allows saving vital time for the patient October 15th, 2014

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE