Web based interactive educational software introducing semiconductor laser dynamics: Sound Of Lasers (SOL)

Consoli Barone, Antonio and Rodero Sánchez, Jorge and Rodriguez Horche, Paloma and Esquivias Moscardo, Ignacio (2013). Web based interactive educational software introducing semiconductor laser dynamics: Sound Of Lasers (SOL). In: "12th International Topical Meeting on Education & Training in Optics and Photonics (ETOP 2013)", 23/07/2013 - 26/07/2013, Porto, Portugal. pp. 1-5.

Description

Title: Web based interactive educational software introducing semiconductor laser dynamics: Sound Of Lasers (SOL)
Author/s:
  • Consoli Barone, Antonio
  • Rodero Sánchez, Jorge
  • Rodriguez Horche, Paloma
  • Esquivias Moscardo, Ignacio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 12th International Topical Meeting on Education & Training in Optics and Photonics (ETOP 2013)
Event Dates: 23/07/2013 - 26/07/2013
Event Location: Porto, Portugal
Title of Book: 12th International Topical Meeting on Education & Training in Optics and Photonics (ETOP 2013)
Date: 2013
Subjects:
Freetext Keywords: Learning, educational software, java applets, optical communications, semiconductor lasers, laser rate equations model, frequency chirp
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (237kB) | Preview

Abstract

In this work, educational software for intuitive understanding of the basic dynamic processes of semiconductor lasers is presented. The proposed tool is addressed to the students of optical communication courses, encouraging self consolidation of the subjects learned in lectures. The semiconductor laser model is based on the well known rate equations for the carrier density, photon density and optical phase. The direct modulation of the laser is considered with input parameters which can be selected by the user. Different options for the waveform, amplitude and frequency of thpoint. Simulation results are plotted for carrier density and output power versus time. Instantaneous frequency variations of the laser output are numerically shifted to the audible frequency range and sent to the computer loudspeakers. This results in an intuitive description of the “chirp” phenomenon due to amplitude-phase coupling, typical of directly modulated semiconductor lasers. In this way, the student can actually listen to the time resolved spectral content of the laser output. By changing the laser parameters and/or the modulation parameters,consequent variation of the laser output can be appreciated in intuitive manner. The proposed educational tool has been previously implemented by the same authors with locally executable software. In the present manuscript, we extend our previous work to a web based platform, offering improved distribution and allowing its use to the wide audience of the web.

More information

Item ID: 29790
DC Identifier: http://oa.upm.es/29790/
OAI Identifier: oai:oa.upm.es:29790
Deposited by: Memoria Investigacion
Deposited on: 20 Jul 2014 07:25
Last Modified: 22 Apr 2016 00:10
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM