ISLAS

Injected Spin Lasers

 Coordinatore UNIVERSITY OF ESSEX 

 Organization address address: WIVENHOE PARK
city: COLCHESTER
postcode: CO4 3SQ

contact info
Titolo: Ms.
Nome: Shereen
Cognome: Anderson
Email: send email
Telefono: +44 (0)1206 872169
Fax: +44 (0) 1206 873894

 Nazionalità Coordinatore United Kingdom [UK]
 Totale costo 169˙390 €
 EC contributo 169˙390 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2007-2-1-IEF
 Funding Scheme MC-IEF
 Anno di inizio 2009
 Periodo (anno-mese-giorno) 2009-01-01   -   2010-12-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITY OF ESSEX

 Organization address address: WIVENHOE PARK
city: COLCHESTER
postcode: CO4 3SQ

contact info
Titolo: Ms.
Nome: Shereen
Cognome: Anderson
Email: send email
Telefono: +44 (0)1206 872169
Fax: +44 (0) 1206 873894

UK (COLCHESTER) coordinator 0.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

spin    optical    polarised    enhanced    vcsels    model    fundamental    lasers    polarisation    injection    nonlinear    dynamics    chaos    injected   

 Obiettivo del progetto (Objective)

'This proposal is concerned with vertical-cavity surface-emitting lasers (VCSELs) where the output polarisation is controlled by the injection of spin-polarised electrons. These spin-polarised lasers offer many attractive advantages, including enhanced intensity and polarisation stability as well as a reduced threshold current. However, the focus of the present proposal is on the effects of polarised optical injection on the nonlinear dynamics of spin-polarised lasers. Nonlinear dynamics of optically-injected semiconductor lasers has been a fertile research topic for many years and the benefits are now beginning to be seen in stable injection-locked sources with very high bandwidths as well as in potential applications in encrypted communications systems based on chaos. By combining the hitherto disparate fields of spin-polarised VCSELs and optical injected lasers this proposal opens an entirely new research avenue of fundamental importance with many routes to potential applications. The effects of polarised optical injection in conventional VCSELs will be studied first, both experimentally and theoretically, and the model predictions will be compared with the experimental results. In addition to generating results of fundamental interest, these comparisons will be used to build confidence in the modelling capability and to adjust parameter values to optimise the model. This experience will then be used to develop a model for polarised optical injection in spin-polarised VCSELs and use it to analyse effects such as polarisation switching, bistability, limit cycle, period doubling and chaos, and to seek novel effects. This project will generate fundamental understanding of the dynamics of spin-controlled lasers that is required to unlock potential applications in coherent detection systems, cryptography, magneto-optical recording, optical switches, reconfigurable optical interconnects and telecommunications with enhanced bandwidth.'

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