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Title: Diode pumped low doped ND/sub 3+/ glass laser

Abstract

This patent describes a method for obtaining laser radiation, the steps of: optically pumping Nd/sup 3+/ lasant ions of a laser gain medium with the output optical radiation of a light emitting semiconductive diode; the gain medium comprises a glass member doped with the Nd/sup 3+/ lasant ions to a density of less than 10x10/sup 20/ cm/sup -3/ such that the laser gain medium has an optical loss at the wavelength of the lasant transition of less than 0.2 per meter and has a gain cross-section less than 8x10/sup -20/ cm/sup 2/; resonating coherent lasant optical radiation emitted by a lasant transition of the optically pumped lasant Nd/sup 3+/ ions of the gain medium within an optical resonator containing the optically pumped gain medium and having at least one concave reflector to obtain output laser radiation; and focusing the resonant lasant radiation within the optical resonator and within the gain medium such that the predominant focusing mechanism for focusing the resonant radiation within the gain medium is focusing from a concave optical focusing element disposed on the optical axis of the optical resonator.

Inventors:
; ;
Publication Date:
OSTI Identifier:
6747978
Alternate Identifier(s):
OSTI ID: 6747978
Patent Number(s):
US 4764933
Assignee:
Stanford University, Stanford, CA NOV; NOV-88-028189; EDB-88-185642
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 30 Oct 1986
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; NEODYMIUM LASERS; OPTICAL PUMPING; DESIGN; DOPED MATERIALS; FOCUSING; GAIN; GLASS; LASER MATERIALS; LASER RADIATION; LIGHT EMITTING DIODES; NEODYMIUM; OPTICAL SYSTEMS; RESONANCE; RESONATORS; AMPLIFICATION; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; LASERS; MATERIALS; METALS; PUMPING; RADIATIONS; RARE EARTHS; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES; SOLID STATE LASERS 420300* -- Engineering-- Lasers-- (-1989)

Citation Formats

Kozlovsky, W.J., Yee, T., and Byer, R.L. Diode pumped low doped ND/sub 3+/ glass laser. United States: N. p., 1988. Web.
Kozlovsky, W.J., Yee, T., & Byer, R.L. Diode pumped low doped ND/sub 3+/ glass laser. United States.
Kozlovsky, W.J., Yee, T., and Byer, R.L. Tue . "Diode pumped low doped ND/sub 3+/ glass laser". United States.
@article{osti_6747978,
title = {Diode pumped low doped ND/sub 3+/ glass laser},
author = {Kozlovsky, W.J. and Yee, T. and Byer, R.L.},
abstractNote = {This patent describes a method for obtaining laser radiation, the steps of: optically pumping Nd/sup 3+/ lasant ions of a laser gain medium with the output optical radiation of a light emitting semiconductive diode; the gain medium comprises a glass member doped with the Nd/sup 3+/ lasant ions to a density of less than 10x10/sup 20/ cm/sup -3/ such that the laser gain medium has an optical loss at the wavelength of the lasant transition of less than 0.2 per meter and has a gain cross-section less than 8x10/sup -20/ cm/sup 2/; resonating coherent lasant optical radiation emitted by a lasant transition of the optically pumped lasant Nd/sup 3+/ ions of the gain medium within an optical resonator containing the optically pumped gain medium and having at least one concave reflector to obtain output laser radiation; and focusing the resonant lasant radiation within the optical resonator and within the gain medium such that the predominant focusing mechanism for focusing the resonant radiation within the gain medium is focusing from a concave optical focusing element disposed on the optical axis of the optical resonator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {8}
}