Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

High Efficiency and High Stability for SHG in a Nd : YVO4 Laser with a KTP Intracavity and Q-switching through Harmonic Modulation

Samuel Mardoqueo Afanador Delgado
,
Juan Hugo García López
ORCID logo ,
Rider Jaimes Reátegui
,
Vicente Aboites
ORCID logo ,
José Luis Echenausía Monroy
,
Guillermo Huerta-Cuellar
*
Version 1 : Received: 11 March 2023 / Approved: 20 March 2023 / Online: 20 March 2023 (08:51:44 CET)

A peer-reviewed article of this Preprint also exists.

Afanador Delgado, S.M.; García López, J.H.; Reátegui, R.J.; Aboites, V.; Echenausía Monroy, J.L.; Huerta Cuellar, G. High Efficiency and High Stability for SHG in an Nd:YVO4 Laser with a KTP Intracavity and Q-Switching through Harmonic Modulation. Photonics 2023, 10, 454. Afanador Delgado, S.M.; García López, J.H.; Reátegui, R.J.; Aboites, V.; Echenausía Monroy, J.L.; Huerta Cuellar, G. High Efficiency and High Stability for SHG in an Nd:YVO4 Laser with a KTP Intracavity and Q-Switching through Harmonic Modulation. Photonics 2023, 10, 454.

Abstract

In this paper, the stabilization and high efficiency of an unstable Second Harmonic Generation (SHG) of a Nd : YVO4 laser with a KTP intracavity is carried out by using a passive Q-switching crystal and a parametric modulation method (harmonic modulation) is shown. The harmonic modulation was defined as um(t) = Amsin(2π fmt), with modulation amplitude as Am(Vpp), and modulation frequency as fm(Hz), applied to the pumping of the Nd : YVO4 -KTP laser to control the amplitude and frequency of the emission, thus stabilizing the dynamic states of this laser. The promising application of this green light source is materialized when such light is necessary for high-density optics, such as in the treatment materials industry or in some aesthetic applications.

Keywords

Nd : YVO4 laser; Second Harmonic Generation; Q-switched Lasers; Frequency doubled

Subject

Biology and Life Sciences, Forestry

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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