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Title: Pump radiation distribution in multi-element first cladding laser fibres

Abstract

Pump radiation transfer is studied experimentally in multi-element first cladding laser fibres. A model of this process is proposed, which is in good agreement with experimental results. An all-fibre single-mode cw ytterbium laser based on a three-element first cladding fibre with an output power of 100W is fabricated. (lasers)

Authors:
; ; ; ; ;  [1]
  1. Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
21470855
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 35; Journal Issue: 11; Other Information: DOI: 10.1070/QE2005v035n11ABEH013029
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CLADDING; DISTRIBUTION; LASERS; OPTICAL FIBERS; PUMPING; RADIATION TRANSPORT; YTTERBIUM; DEPOSITION; ELEMENTS; FIBERS; METALS; RARE EARTHS; SURFACE COATING

Citation Formats

Mel'kumov, Mikhail A, Bufetov, Igor' A, Bubnov, M M, Shubin, Aleksei V, Semenov, S L, and Dianov, Evgenii M. Pump radiation distribution in multi-element first cladding laser fibres. United States: N. p., 2005. Web. doi:10.1070/QE2005V035N11ABEH013029.
Mel'kumov, Mikhail A, Bufetov, Igor' A, Bubnov, M M, Shubin, Aleksei V, Semenov, S L, & Dianov, Evgenii M. Pump radiation distribution in multi-element first cladding laser fibres. United States. doi:10.1070/QE2005V035N11ABEH013029.
Mel'kumov, Mikhail A, Bufetov, Igor' A, Bubnov, M M, Shubin, Aleksei V, Semenov, S L, and Dianov, Evgenii M. Wed . "Pump radiation distribution in multi-element first cladding laser fibres". United States. doi:10.1070/QE2005V035N11ABEH013029.
@article{osti_21470855,
title = {Pump radiation distribution in multi-element first cladding laser fibres},
author = {Mel'kumov, Mikhail A and Bufetov, Igor' A and Bubnov, M M and Shubin, Aleksei V and Semenov, S L and Dianov, Evgenii M},
abstractNote = {Pump radiation transfer is studied experimentally in multi-element first cladding laser fibres. A model of this process is proposed, which is in good agreement with experimental results. An all-fibre single-mode cw ytterbium laser based on a three-element first cladding fibre with an output power of 100W is fabricated. (lasers)},
doi = {10.1070/QE2005V035N11ABEH013029},
journal = {Quantum Electronics (Woodbury, N.Y.)},
number = 11,
volume = 35,
place = {United States},
year = {Wed Nov 30 00:00:00 EST 2005},
month = {Wed Nov 30 00:00:00 EST 2005}
}
  • Single-mode cw Yb-, Er-Yb, and Nd-doped fibre lasers are fabricated by using fibres of a complicated structure (a few silica fibres in optical contact with each other are surrounded by a polymer jacket). Such a structure allows the coupling of radiation from several pump sources into one active fibre, providing an increase in the output power of the fibre laser. The Yb-doped fibre lasers with the output power above 50 W and efficiency {approx}65% and the 1.608-{mu}m Er-Yb-doped fibre laser pumped to the absorption band of Yb are fabricated and studied. The Nd-doped fibre lasers based on such fibres andmore » emitting at 0.92 and 1.06 {mu}m are manufactured for the first time. (lasers)« less
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  • A method of increasing the pumping efficiency of active optical fibres doped with Er{sup 3+} ions by decreasing the diameter of the inner cladding is analysed. An active optical fibre is described by using the electrodynamic model of a three-layer dielectric waveguide. The dependence of the average pump power flux through the core on the ratio of the radii of the core and the inner cladding is obtained. It is shown that this dependence can also be interpreted as the dependence of the damping constant averaged over all the waves in the core and the cladding. (optical fibres and fibremore » lasers)« less