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Title: A microchip laser with intracavity second-harmonic generation

Abstract

A short-pulse 'green' 532-nm Nd{sup 3+}:YVO{sub 4} and KTiOPO{sub 4} microchip laser with intracavity second-harmonic generation, which is pumped by a 809-nm semiconductor laser diode, is developed. (lasers. amplifiers)

Authors:
; ;  [1]
  1. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
21466515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 38; Journal Issue: 12; Other Information: DOI: 10.1070/QE2008v038n12ABEH013875
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; HARMONIC GENERATION; LASER CAVITIES; MICROELECTRONICS; NEODYMIUM IONS; PULSES; SEMICONDUCTOR LASERS; VANADATES; CHARGED PARTICLES; FREQUENCY MIXING; IONS; LASERS; OXYGEN COMPOUNDS; SEMICONDUCTOR DEVICES; SOLID STATE LASERS; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS

Citation Formats

Derzhavin, S I, Mashkovskii, D A, and Timoshkin, V N. A microchip laser with intracavity second-harmonic generation. United States: N. p., 2008. Web. doi:10.1070/QE2008V038N12ABEH013875.
Derzhavin, S I, Mashkovskii, D A, & Timoshkin, V N. A microchip laser with intracavity second-harmonic generation. United States. doi:10.1070/QE2008V038N12ABEH013875.
Derzhavin, S I, Mashkovskii, D A, and Timoshkin, V N. 2008. "A microchip laser with intracavity second-harmonic generation". United States. doi:10.1070/QE2008V038N12ABEH013875.
@article{osti_21466515,
title = {A microchip laser with intracavity second-harmonic generation},
author = {Derzhavin, S I and Mashkovskii, D A and Timoshkin, V N},
abstractNote = {A short-pulse 'green' 532-nm Nd{sup 3+}:YVO{sub 4} and KTiOPO{sub 4} microchip laser with intracavity second-harmonic generation, which is pumped by a 809-nm semiconductor laser diode, is developed. (lasers. amplifiers)},
doi = {10.1070/QE2008V038N12ABEH013875},
journal = {Quantum Electronics (Woodbury, N.Y.)},
number = 12,
volume = 38,
place = {United States},
year = 2008,
month =
}
  • An experimental study was made of lasing in dyes pumped by radiation from a cw YAG:Nd/sup 3 +/ laser with intracavity second harmonic generation in an LiIO/sub 3/ crystal. The parameters of the tunable dye laser radiation were not inferior to those obtained by pumping dyes with high-power argon laser radiation.
  • The average output power of the second harmonic can be increased and the construction of a laser can be simplified by using a nonlinear crystal not only for second harmonic generation, but also as an electrooptic switch for the separation of rays with different polarizations at the fundamental frequency. By way of example, the results are given of a continuously pumped YAG laser in which a switch for unpolarized radiation is in the form of a Pockels cell and a nonlinear lithium iodate crystal cut at an angle of 29/sup 0/ to the optic axis. It was found that suchmore » a laser configuration could ensure 77% conversion of the fundamental frequency radiation to the second harmonic at the wavelength of 0.53 ..mu.. and with an average power of 2.4 W.« less
  • An investigation was made of a method of selecting the TEM/sub 00/ mode in a laser by using birefringence induced in an active element during pumping. The reasons for astigmatism of the thermal lens in an active element with Brewster-cut faces were determined and an investigation was made of the structure of the radiation field of a laser using such an element. It is found that the optimal conditions for efficient emission of linearly polarized radiation in the dominant transverse mode in a laser with a Brewster active element are achieved by using an active element of rectangular cross sectionmore » with a specific ratio of the sides. A prototype YAG ring laser emitting linearly polarized radiation with a power of 15 W in the TEM/sub 00/ mode is described. By using an LiIO/sub 3/ nonlinear element, 0.43 W of cw radiation at the 0.53 ..mu.. wavelength is obtained.« less
  • We have achieved cw second-harmonic generation using an intracavity Ba/sub 2/NaNb/sub 5/O/sub 15/ doubler crystal in a low-power NdP/sub 5/O/sub 14/ laser pumped by a dye laser. Our results show the feasibility of obtaining visible (0.525 ..mu..m) second-harmonic radiation from similar lasers pumped by near-infrared semiconductor sources. (AIP)