Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Ultra fast optical amplifier: silicon and erbium on one chip for the first time

Image of the chip including silicon optical waveguide (SOI: silicon on insulator) as well as erbium-doped aluminium oxyde.
Image of the chip including silicon optical waveguide (SOI: silicon on insulator) as well as erbium-doped aluminium oxyde.

Abstract:
Within optical microchips, light finds its way through channels, waveguides, made of silicon. Light from a glass fiber, for example, is led through a structure of optical channels with splitters and couplers. Silicon is the workhorse for this, but it is still passive conduction of light, with some losses as well. To be able to amplify the signal, or even to include a light source on the chip, extra steps are necessary. Other types of semiconductors, like Gallium Arsenide, are an option. But materials doped with the rare earth material erbium have good amplification properties as well.

Ultra fast optical amplifier: silicon and erbium on one chip for the first time

Enschede, Netherlands | Posted on September 22nd, 2012

Until now, no chip existed, on which both silicon and erbium-doped material were integrated. In her thesis, PhD candidate Laura Agazzi of the University of Twente demonstrates a working chip for the first time. It will be able to amplify light at speeds up to 170 Gbit/sec. The prototype chip has a signal gain of 7.2 decibel at infrared light (1533 nanometer).

The prototype is a starting point, but the results are very promising. One of the possibilities is a laser with an extremely narrow linewidth of 1.7 kHz. "In any application that needs emission or amplification of light, this integration of both materials is useful. It is not limited to telecom. You could use these chips for sensor purposes, for tracing extremely small particles, for example," Agazzi adds.

Trade-off

Laura Agazzi has investigated the optical properties of aluminium oxide doped with erbium, to understand the mechanisms that influence the amplification properties in a negative way. One of these is called energy-transfer up conversion (ETU), which is detrimental for good functionality."If you want a large amplification, you would like to put many erbium ions in the material, this in turn can cause a higher ETU. There are possibilities in adapting the host material, causing less interaction of the ions. With my models, I have gained better insight in these and other mechanisms that lower the amplification.

Laura Agazzi (1983, Vimercate, Italie) conducted her research within the Integrated Optical Microsystems (IOMS) of prof Markus Pollnau, which is part of the MESA+ Institute for Nanotechnology of the University of Twente. On Sep 20 she successfully defended her thesis Spectroscopic Excitation and Quenching Processes in Rare-Earth-Ion-Doped Al2O3 and their Impact on Amplifier and Laser Performance. Her thesis, or a summary, are available digitally.

####

For more information, please click here

Contacts:
Wiebe van der Veen
+31612185692

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

'Lasers rewired': Scientists find a new way to make nanowire lasers: Berkeley Lab, UC Berkeley scientists adapt next-gen solar cell materials for a different purpose February 12th, 2016

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

Chip Technology

A metal that behaves like water: Researchers describe new behaviors of graphene February 12th, 2016

Silicon chip with integrated laser: Light from a nanowire: Nanolaser for information technology February 12th, 2016

Research reveals carbon films can give microchips energy storage capability: International team from Drexel University and Paul Sabatier University reveals versatility of carbon films February 11th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Optical computing/ Photonic computing

Silicon chip with integrated laser: Light from a nanowire: Nanolaser for information technology February 12th, 2016

Nanoscale cavity strongly links quantum particles: Single photons can quickly modify individual electrons embedded in a semiconductor chip and vice versa February 8th, 2016

Scientists guide gold nanoparticles to form 'diamond' superlattices: DNA scaffolds cage and coax nanoparticles into position to form crystalline arrangements that mimic the atomic structure of diamond February 4th, 2016

Silicon-based metamaterials could bring photonic circuits February 1st, 2016

Discoveries

'Lasers rewired': Scientists find a new way to make nanowire lasers: Berkeley Lab, UC Berkeley scientists adapt next-gen solar cell materials for a different purpose February 12th, 2016

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

Announcements

Graphene leans on glass to advance electronics: Scientists' use of common glass to optimize graphene's electronic properties could improve technologies from flat screens to solar cells February 12th, 2016

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

Photonics/Optics/Lasers

'Lasers rewired': Scientists find a new way to make nanowire lasers: Berkeley Lab, UC Berkeley scientists adapt next-gen solar cell materials for a different purpose February 12th, 2016

Silicon chip with integrated laser: Light from a nanowire: Nanolaser for information technology February 12th, 2016

Scientists take nanoparticle snapshots February 10th, 2016

Scientists create laser-activated superconductor February 8th, 2016

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







Car Brands
Buy website traffic