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Proceedings Paper

Optimization of a Fabry-Perot Q-switch fiber optic laser
Author(s): Ivan Armas Rivera; Georgina Beltrán Pérez; Evgene Kuzin; Juan Castillo Mixcóatl; Severino Muñoz Aguirre
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Paper Abstract

Optical fiber Q-Switch lasers have been used in a variety of application areas in science as well as in industry owing to their multiple characteristics. A possible application is that owing to their high output power they can be used as pumping sources for supercontinuum generation. Such source can be employed in optical coherence tomography (OCT) focused to dermatology. Therefore it is important to develop sources with emission wavelength that are not injurious to human skin. In the present work erbium doped fiber (EDF) was used owing that its emission wavelength (1550 nm) is adequate for this purpose. The most efficient way of achieving high power in a Q-Switch laser is optimizing all the parameters involved in the pulses generation, such as pumping power, active medium length and modulation frequency. The results show that using a fiber length of 7 meters is possible to get 10 μJ of energy, a peak power of 140 W, an average power of 27.5mW with temporal widths of 500 ns. The laser uses an acousto-optic device to modulate the internal loses inside the cavity. As highly reflecting mirrors, a Sagnac Interferometer and a Fiber Bragg Grating was employed.

Paper Details

Date Published: 18 November 2013
PDF: 6 pages
Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785AK (18 November 2013); doi: 10.1117/12.2021710
Show Author Affiliations
Ivan Armas Rivera, Benemérita Univ. Autónoma de Puebla (Mexico)
Georgina Beltrán Pérez, Benemérita Univ. Autónoma de Puebla (Mexico)
Evgene Kuzin, Benemérita Univ. Autónoma de Puebla (Mexico)
Juan Castillo Mixcóatl, Benemérita Univ. Autónoma de Puebla (Mexico)
Severino Muñoz Aguirre, Benemérita Univ. Autónoma de Puebla (Mexico)


Published in SPIE Proceedings Vol. 8785:
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
Manuel Filipe P. C. Martins Costa, Editor(s)

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