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VCSEL measurements and characterization for gas sensing

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dc.contributor.author VIERU, T.
dc.contributor.author DOROGAN, A.
dc.contributor.author VIERU, S.
dc.contributor.author DOROGAN, V.
dc.date.accessioned 2019-12-05T11:26:17Z
dc.date.available 2019-12-05T11:26:17Z
dc.date.issued 2012
dc.identifier.citation VIERU, T., DOROGAN, A., VIERU, S. VCSEL measurements and characterization for gas sensing. In: Telecommunications, Electronics and Informatics- ICTEI 2012: proc. of the 5th intern. conf., Technical University of Moldova, May 11-13, 2012. Chișinău, 2012, Vol. 1, pp. 196-202. ISBN 978-9975-45-082-9. en_US
dc.identifier.isbn 978-9975-45-082-9
dc.identifier.uri http://repository.utm.md/handle/5014/7294
dc.description.abstract The paper presents the results of measurements and analysis of parameters and characteristics of Vertical Cavity Surface Emitting Laser (VCSEL) Diode to use in gas detectors on the basis of the tunable diode laser spectroscopy method. Precise absorption spectra were obtained to determine the optimal wavelengths for gas sensing. The measurement results showed that the possibility of increasing the output power of VCSEL by enlarging the diameter of the tunnel junction being limited by the increase of the number of modes in the emission spectrum. The analysis of the encapsulated VCSEL modules had demonstrated high SMRS (above 40 dB), high temperature stability of the emission wavelength (dλ/dT≈ 0.05–0.08 nm/K), possibility of continuous change of emission wavelength with operation current, which allows efficient use of VCSEL for ammoniac detection by TDLS method. en_US
dc.language.iso en en_US
dc.publisher Technical University of Moldova en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject gas detectors en_US
dc.subject vertical cavity surface-emitting lasers en_US
dc.subject lasers en_US
dc.subject VCSELs en_US
dc.title VCSEL measurements and characterization for gas sensing en_US
dc.type Article en_US


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