Laser diode bistability as sensor of optical signal parameters

Ana P. Gonzalez-Marcos; Jose Antonio Martin-Pereda; Antonio Hurtado

doi:10.1117/12.567341

16 November 2004 Laser diode bistability as sensor of optical signal parameters

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

Proceedings Volume 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers; (2004) https://doi.org/10.1117/12.567341
Event: Photonics North, 2004, Ottawa, Ontario, Canada

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. Lased diodes were acting, in 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, 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 will be analyzed and their application in sensing reported. It will be reported the dependence on wavelength, spectral width, input power and phase variations, mainly for a Fabry-Perot Laser structure as basic configuration.

Citation Download Citation

Ana P. Gonzalez-Marcos, Jose Antonio Martin-Pereda, and Antonio Hurtado "Laser diode bistability as sensor of optical signal parameters", Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); https://doi.org/10.1117/12.567341

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