Controlling a laser output through an active saturable absorber

M. Wilson, V. Aboites, A. Pisarchik, V. Pinto, Y. Barmenkov

Abstract


Using the modified Statz - De Mars equations to describe a two laser optical system, it is shown how a saturable absorber can be made into an active control device when an external Electro Optic Modulator modulated low-intensity laser pumps directly into a saturable absorber inside a dye laser cavity. The direct modulation enables to control when and how the pulse train coming from the saturable absorber is released. The results here presented show that the pulse characteristics such as width, intensity and pulse frequency coming from the dye laser cavity, depend on the absorber characteristics and the modulation frequency.

Keywords


Laser; optical resonator; laser dynamics

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REVISTA MEXICANA DE FÍSICA, year 67, issue 1, January-February 2021. Bimonthly Journal published by Sociedad Mexicana de Física, A. C. Departamento de Física, 2º Piso, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Alcaldía Coyacán, C.P. 04510 , Ciudad de México. Apartado Postal 70-348. Tel. (+52)55-5622-4946, https://rmf.smf.mx/ojs/rmf, e-mail: rmf@ciencias.unam.mx. Chief Editor: José Alejandro Ayala Mercado. INDAUTOR Certificate of Reserve: 04-2019-080216404400-203, ISSN: 2683-2224 (on line), 0035-001X (print), both granted by Instituto Nacional del Derecho de Autor. Responsible for the last update of this issue, Technical Staff of Sociedad Mexicana de Física, A. C., Fís. Efraín Garrido Román, 2º. Piso, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Alcaldía Coyacán, C.P. 04510 , Ciudad de México. Date of last modification, January 4, 2021.

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