Thermal effects on the quantum efficiency of 3 μm erbium lasers

S. Georgescu; V. Lupei; T. J. Glynn; R. Sherlock

doi:10.1080/10420159508218785

Thermal effects on the quantum efficiency of 3 μm erbium lasers

S. Georgescu
, V. Lupei
, T. J. Glynn
, R. Sherlock

Physics

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

1 Citation (Scopus)

Abstract

The temperature dependence of the main energy transfer processes involved in the building of population inversion in 3 μm Erbium lasers, mainly upconversion fROU ⁴I₁ ₃/₂, ⁴I₁₁/₂, ^and cross-relaxation fROU ⁴l₉/₂, is investigated. In the temperature domain 20-100°C, which includes the usual working temperatures of solid-state lasers, the change of the quantum efficiency is mainly due to the modifications of the Stark sublevels populations involved in laser transitions. The contribution of the cross-relaxation fROU ⁴I₉/₂ is estimated using new experimental data for two Erbium-doped crystals: Er³⁺: YA1O₃ and Er³⁺:YLiF4.

Original language	English
Pages (from-to)	23-27
Number of pages	5
Journal	Radiation Effects and Defects in Solids
Volume	136
Issue number	1-4
DOIs	https://doi.org/10.1080/10420159508218785
Publication status	Published - 1995

Keywords

Energy transfer
Er3+
Solid-state lasers

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10.1080/10420159508218785

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title = "Thermal effects on the quantum efficiency of 3 μm erbium lasers",

abstract = "The temperature dependence of the main energy transfer processes involved in the building of population inversion in 3 μm Erbium lasers, mainly upconversion fROU 4I1 3/2, 4I11/2, and cross-relaxation fROU 4l9/2, is investigated. In the temperature domain 20-100°C, which includes the usual working temperatures of solid-state lasers, the change of the quantum efficiency is mainly due to the modifications of the Stark sublevels populations involved in laser transitions. The contribution of the cross-relaxation fROU 4I9/2 is estimated using new experimental data for two Erbium-doped crystals: Er3+: YA1O3 and Er3+:YLiF4.",

keywords = "Energy transfer, Er3+, Solid-state lasers",

author = "S. Georgescu and V. Lupei and Glynn, \{T. J.\} and R. Sherlock",

year = "1995",

doi = "10.1080/10420159508218785",

language = "English",

volume = "136",

pages = "23--27",

journal = "Radiation Effects and Defects in Solids",

issn = "1042-0150",

publisher = "Taylor and Francis Ltd.",

number = "1-4",

}

TY - JOUR

T1 - Thermal effects on the quantum efficiency of 3 μm erbium lasers

AU - Georgescu, S.

AU - Lupei, V.

AU - Glynn, T. J.

AU - Sherlock, R.

PY - 1995

Y1 - 1995

N2 - The temperature dependence of the main energy transfer processes involved in the building of population inversion in 3 μm Erbium lasers, mainly upconversion fROU 4I1 3/2, 4I11/2, and cross-relaxation fROU 4l9/2, is investigated. In the temperature domain 20-100°C, which includes the usual working temperatures of solid-state lasers, the change of the quantum efficiency is mainly due to the modifications of the Stark sublevels populations involved in laser transitions. The contribution of the cross-relaxation fROU 4I9/2 is estimated using new experimental data for two Erbium-doped crystals: Er3+: YA1O3 and Er3+:YLiF4.

AB - The temperature dependence of the main energy transfer processes involved in the building of population inversion in 3 μm Erbium lasers, mainly upconversion fROU 4I1 3/2, 4I11/2, and cross-relaxation fROU 4l9/2, is investigated. In the temperature domain 20-100°C, which includes the usual working temperatures of solid-state lasers, the change of the quantum efficiency is mainly due to the modifications of the Stark sublevels populations involved in laser transitions. The contribution of the cross-relaxation fROU 4I9/2 is estimated using new experimental data for two Erbium-doped crystals: Er3+: YA1O3 and Er3+:YLiF4.

KW - Energy transfer

KW - Er3+

KW - Solid-state lasers

UR - https://www.scopus.com/pages/publications/0029486696

U2 - 10.1080/10420159508218785

DO - 10.1080/10420159508218785

M3 - Article

AN - SCOPUS:0029486696

SN - 1042-0150

VL - 136

SP - 23

EP - 27

JO - Radiation Effects and Defects in Solids

JF - Radiation Effects and Defects in Solids

IS - 1-4

ER -

Thermal effects on the quantum efficiency of 3 μm erbium lasers

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Keywords

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