000128299 001__ 128299
000128299 005__ 20181203021304.0
000128299 0247_ $$2doi$$a10.1364/AO.43.004446
000128299 022__ $$a0003-6935
000128299 02470 $$2DAR$$a5466
000128299 02470 $$2ISI$$a000222934800021
000128299 037__ $$aARTICLE
000128299 245__ $$aExperimental method based on wavelength-modulation spectroscopy for the characterization of semiconductor lasers under direct modulation
000128299 269__ $$a2004
000128299 260__ $$bOptical Society of America$$c2004
000128299 336__ $$aJournal Articles
000128299 490__ $$aAppl. Opt. (USA)
000128299 500__ $$aLab. of Nanophotonics & Metrol., Ecole Polytech. Fed. de Lausanne, Switzerland Copyright 2004, IEE 8162364 0003-6935 wavelength-modulation spectroscopy semiconductor lasers intensity modulation frequency modulation injection current modulation harmonic signals distributed-feedback laser CO2 absorption line 2 mum 400 Hz to 30 kHz CO2
000128299 520__ $$aAn experimental method is presented for characterization of the combined intensity and frequency modulation produced when the injection current of a laser diode is modulated. The reported technique is based on the analysis of the harmonic signals produced when a modulated laser is used to probe a gas absorption line by the so-called wavelength-modulation spectroscopy method. Based on a theoretical model of this technique, we present two methods that facilitate the determination of (i) the deviation in laser frequency and (ii) the phase shift between intensity and frequency modulation. These methods are illustrated experimentally by measurement of the modulation parameters of a 2-μm distributed-feedback laser by use of a CO2 absorption line. The experimental results have been compared with those obtained with another traditional method and have shown full agreement in the frequency range (400 Hz-30 kHz) considered
000128299 6531_ $$acarbon compounds
000128299 6531_ $$adistributed feedback lasers
000128299 6531_ $$afrequency modulation
000128299 6531_ $$aintensity modulation
000128299 6531_ $$amodulation spectroscopy
000128299 6531_ $$aoptical harmonic generation
000128299 6531_ $$aoptical modulation
000128299 6531_ $$asemiconductor lasers
000128299 6531_ $$aspectroscopic light sources
000128299 700__ $$0240237$$aSchilt, S.$$g107505
000128299 700__ $$0240503$$aThévenaz, Luc$$g106544
000128299 773__ $$j43$$k22$$q4446-53$$tApplied Optics
000128299 8564_ $$zURL
000128299 8564_ $$s287002$$uhttps://infoscience.epfl.ch/record/128299/files/Schilt-2004-Experimental%20method.pdf$$yPublisher's version$$zn/a
000128299 909C0 $$0252088$$pTHEVE$$xUS05033
000128299 909C0 $$0252591$$pSCI-STI-LT$$xU12146
000128299 909CO $$ooai:infoscience.tind.io:128299$$pSTI$$particle
000128299 917Z8 $$x106544
000128299 937__ $$aTHEVE-ARTICLE-2004-006
000128299 970__ $$a389/THEVE
000128299 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000128299 980__ $$aARTICLE