Laser diode bistability as sensor of optical signals parameters

Ana P. Gonzalez-Marcos, Jose A. Martin-Pereda, Antonio Hurtado

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Laser Diodes have been employed many times as light sources on different kinds of optical sensors. Their main function in these applications was the emission of an optical radiation impinging onto a certain object and, according to the characteristics of the reflected light, some information about this object was obtained. Laser diodes were acting, in a certain way, just as passive devices where their only function was to provide the adequate radiation to be later measured and analyzed. The objective of this paper is to report a new concept on the use of laser diodes taking into account their optical bistable properties. As it has been shown in several places, different laser diodes as, for example, DFB lasers and FP lasers, offer bistable characteristics being these characteristics a function of different parameters as wavelength, light polarization or temperature. Laser Bistability is strongly dependent on them and any small variation of above parameters gives rise to a strong change in the characteristics of its non-linear properties. These variations are analyzed and their application in sensing reported. The dependence on wavelength, spectral width, input power and phase variations, mainly for a Fabry-Perot Laser structure as basic configuration, is shown in this paper.

LanguageEnglish
Pages152-159
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5579
DOIs
Publication statusPublished - 16 Nov 2004

Fingerprint

Bistability
Laser Diode
optical communication
Semiconductor lasers
semiconductor lasers
Sensor
sensors
Sensors
Laser
lasers
Lasers
Radiation
Wavelength
DFB Laser
Fabry-Perot
Optical Sensor
Distributed feedback lasers
Optical sensors
optical measuring instruments
radiation

Keywords

  • laser diode bistability
  • optical measurements
  • optical sensor

Cite this

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Laser diode bistability as sensor of optical signals parameters. / Gonzalez-Marcos, Ana P.; Martin-Pereda, Jose A.; Hurtado, Antonio.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5579, 16.11.2004, p. 152-159.

Research output: Contribution to journalArticle

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