Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > University of Twente provides alternative to optical semiconductor amplifiers: Potential optical amplification of more than one hundredfold

Electron microscope image of a waveguide structure, superimposed with a measured intensity profile of the light trapped within it.
Electron microscope image of a waveguide structure, superimposed with a measured intensity profile of the light trapped within it.

Abstract:
Researchers at the University of Twente's MESA+ research institute have developed a material capable of optical amplifications that are comparable to those achieved by the best, currently available semiconductor optical amplifiers. The researchers expect that this material will accelerate data communication and, ultimately, provide an alternative to short distance data communication (at the μm-cm scale). On 16 November, University of Twente researcher Dimitri Geskus will defend his PhD thesis based on this research, which he carried out at the Faculty of Electrical Engineering, Mathematics and Computer Science.

University of Twente provides alternative to optical semiconductor amplifiers: Potential optical amplification of more than one hundredfold

Enschede, The Netherlands | Posted on November 18th, 2011

The increasingly exacting requirements being imposed on data communication are boosting demand for high-speed optical amplifiers. Current optical amplifiers suffer from the drawback that their speed is limited. Researchers at the university have now developed a material capable of optical amplifications which match those achieved using the best, currently available semiconductor optical amplifiers, but at potentially higher data communication rates. This material consists of thin crystalline layers whose optical properties were specially designed for the optical circuits found on chips. The researchers can fine-tune the properties of these thin crystalline layers by changing their composition. Using a clever trick, they were able to embed much higher concentrations of optically active Ytterbium ions (Ytterbium is a rare-earth element) in the crystal. In this way, they have boosted the optical amplification of currently available rare-earth-doped materials by more than one hundredfold. This will ultimately pave the way for faster and cheaper optical data communication.

PhD research
Dimitri Geskus carried out his PhD research at the MESA+ research institute's Integrated Optical Microsystems department. His work was supervised by Prof. Markus Pollnau. The research was partially funded by Prof. Pollnau's personal VICI grant from the Dutch Organization for Scientific Research (NWO).
Details of this work, drawn from Mr Geskus' dissertation, were recently published in the leading scientific journal Advanced Materials.

####

For more information, please click here

Contacts:
Science Information Officer
Joost Bruysters
(+31-(0)53-4892773/+31-(0)6 1048 8228)

Copyright © University of Twente

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

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster: University of Leicester research team unlocks insights into creation of new nano-materials July 25th, 2014

Scientists Test Nanoparticle "Alarm Clock" to Awaken Immune Systems Put to Sleep by Cancer July 25th, 2014

Chip Technology

A*STAR and industry form S$200M semiconductor R&D July 25th, 2014

A Crystal Wedding in the Nanocosmos July 23rd, 2014

Nanometrics Announces Upcoming Investor Events July 22nd, 2014

Penn Study: Understanding Graphene’s Electrical Properties on an Atomic Level July 22nd, 2014

Optical Computing

NUS scientists use low cost technique to improve properties and functions of nanomaterials: By 'drawing' micropatterns on nanomaterials using a focused laser beam, scientists could modify properties of nanomaterials for effective applications in photonic and optoelectric applicat July 22nd, 2014

New NIST metamaterial gives light a one-way ticket July 2nd, 2014

Don't blink! NIST studies why quantum dots suffer from 'fluorescence intermittency' May 22nd, 2014

Scientists in Singapore develop novel ultra-fast electrical circuits using light-generated tunneling currents April 10th, 2014

Discoveries

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

New imaging agent provides better picture of the gut July 25th, 2014

Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster: University of Leicester research team unlocks insights into creation of new nano-materials July 25th, 2014

Announcements

Stanford team achieves 'holy grail' of battery design: A stable lithium anode - Engineers use carbon nanospheres to protect lithium from the reactive and expansive problems that have restricted its use as an anode July 27th, 2014

Iranian Scientists Produce Reusable Nanoadsorbent to Detect Sulfamide in Chicken July 27th, 2014

Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster: University of Leicester research team unlocks insights into creation of new nano-materials July 25th, 2014

Scientists Test Nanoparticle "Alarm Clock" to Awaken Immune Systems Put to Sleep by Cancer July 25th, 2014

Photonics/Optics/Lasers

NUS scientists use low cost technique to improve properties and functions of nanomaterials: By 'drawing' micropatterns on nanomaterials using a focused laser beam, scientists could modify properties of nanomaterials for effective applications in photonic and optoelectric applicat July 22nd, 2014

Carbyne morphs when stretched: Rice University calculations show carbon-atom chain would go metal to semiconductor July 21st, 2014

Tiny laser sensor heightens bomb detection sensitivity July 19th, 2014

Future Electronics May Depend on Lasers, Not Quartz July 17th, 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