Estimation of thermal fracture limits in quasi continuous-wave end-pumped lasers through a time-dependent analytical model

E. H. Bernhardi; A. Forbes; C. Bollig; Daniel Esser

doi:10.1364/OE.16.011115

Estimation of thermal fracture limits in quasi continuous-wave end-pumped lasers through a time-dependent analytical model

E. H. Bernhardi, A. Forbes^*, C. Bollig, Daniel Esser

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

A time-dependent analytical thermal model of the temperature and the corresponding induced thermal stresses on the pump face of quasi continuous wave (qcw) end-pumped laser rods is derived. We apply the model to qcw diode-end-pumped rods and show the maximum peak pump power that can be utilized without fracturing the rod. To illustrate an application of the model, it is applied to a qcw pumped Tm: YLF rod and found to be in very good agreement with published experimental results. The results indicate new criteria to avoid fracture when operating Tm: YLF rods at low qcw pump duty cycles.(C) 2008 Optical Society of America.

Original language	English
Pages (from-to)	11115-11123
Number of pages	9
Journal	Optics Express
Volume	16
Issue number	15
DOIs	https://doi.org/10.1364/OE.16.011115
Publication status	Published - 21 Jul 2008

Keywords

HEAT-GENERATION
ND-YLF
YB-YAG
RODS
TEMPERATURE

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title = "Estimation of thermal fracture limits in quasi continuous-wave end-pumped lasers through a time-dependent analytical model",

abstract = "A time-dependent analytical thermal model of the temperature and the corresponding induced thermal stresses on the pump face of quasi continuous wave (qcw) end-pumped laser rods is derived. We apply the model to qcw diode-end-pumped rods and show the maximum peak pump power that can be utilized without fracturing the rod. To illustrate an application of the model, it is applied to a qcw pumped Tm: YLF rod and found to be in very good agreement with published experimental results. The results indicate new criteria to avoid fracture when operating Tm: YLF rods at low qcw pump duty cycles.(C) 2008 Optical Society of America.",

keywords = "HEAT-GENERATION, ND-YLF, YB-YAG, RODS, TEMPERATURE",

author = "Bernhardi, {E. H.} and A. Forbes and C. Bollig and Daniel Esser",

year = "2008",

month = jul,

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doi = "10.1364/OE.16.011115",

language = "English",

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journal = "Optics Express",

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T1 - Estimation of thermal fracture limits in quasi continuous-wave end-pumped lasers through a time-dependent analytical model

AU - Bernhardi, E. H.

AU - Forbes, A.

AU - Bollig, C.

AU - Esser, Daniel

PY - 2008/7/21

Y1 - 2008/7/21

N2 - A time-dependent analytical thermal model of the temperature and the corresponding induced thermal stresses on the pump face of quasi continuous wave (qcw) end-pumped laser rods is derived. We apply the model to qcw diode-end-pumped rods and show the maximum peak pump power that can be utilized without fracturing the rod. To illustrate an application of the model, it is applied to a qcw pumped Tm: YLF rod and found to be in very good agreement with published experimental results. The results indicate new criteria to avoid fracture when operating Tm: YLF rods at low qcw pump duty cycles.(C) 2008 Optical Society of America.

AB - A time-dependent analytical thermal model of the temperature and the corresponding induced thermal stresses on the pump face of quasi continuous wave (qcw) end-pumped laser rods is derived. We apply the model to qcw diode-end-pumped rods and show the maximum peak pump power that can be utilized without fracturing the rod. To illustrate an application of the model, it is applied to a qcw pumped Tm: YLF rod and found to be in very good agreement with published experimental results. The results indicate new criteria to avoid fracture when operating Tm: YLF rods at low qcw pump duty cycles.(C) 2008 Optical Society of America.

KW - HEAT-GENERATION

KW - ND-YLF

KW - YB-YAG

KW - RODS

KW - TEMPERATURE

U2 - 10.1364/OE.16.011115

DO - 10.1364/OE.16.011115

M3 - Article

SN - 1094-4087

VL - 16

SP - 11115

EP - 11123

JO - Optics Express

JF - Optics Express

IS - 15

ER -

Estimation of thermal fracture limits in quasi continuous-wave end-pumped lasers through a time-dependent analytical model

Abstract

Keywords

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