Thermo-optical effects in high-power Ytterbium-doped fiber amplifiers

Kristian Rymann Hansen; Thomas Tanggaard Alkeskjold; Jes Broeng; Jesper Lægsgaard

doi:10.1364/OE.19.023965

Thermo-optical effects in high-power Ytterbium-doped fiber amplifiers

Kristian Rymann Hansen, Thomas Tanggaard Alkeskjold, Jes Broeng, Jesper Lægsgaard

Research output: Contribution to journal › Journal article › Research › peer-review

1847 Downloads (Pure)

Abstract

We investigate the effect of temperature gradients in high-power Yb-doped fiber amplifiers by a numerical beam propagation model, which takes thermal effects into account in a self-consistent way. The thermally induced change in the refractive index of the fiber leads to a thermal lensing effect, which decreases the effective mode area. Furthermore, it is demonstrated that the thermal lensing effect may lead to effective multi-mode behavior, even in single-mode designs, which could possibly lead to degradation of the output beam quality.

Original language	English
Journal	Optics Express
Volume	19
Issue number	24
Pages (from-to)	23965-23980
ISSN	1094-4087
DOIs	https://doi.org/10.1364/OE.19.023965
Publication status	Published - 2011

Bibliographical note

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-24-23965. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Access to Document

10.1364/OE.19.023965

C95DCd01Final published version, 2 MB

OpenUrl availability

Full text

Cite this

@article{83ae45dfdc6b4b81803e39d2c0478071,

title = "Thermo-optical effects in high-power Ytterbium-doped fiber amplifiers",

abstract = "We investigate the effect of temperature gradients in high-power Yb-doped fiber amplifiers by a numerical beam propagation model, which takes thermal effects into account in a self-consistent way. The thermally induced change in the refractive index of the fiber leads to a thermal lensing effect, which decreases the effective mode area. Furthermore, it is demonstrated that the thermal lensing effect may lead to effective multi-mode behavior, even in single-mode designs, which could possibly lead to degradation of the output beam quality.",

author = "Hansen, {Kristian Rymann} and Alkeskjold, {Thomas Tanggaard} and Jes Broeng and Jesper L{\ae}gsgaard",

note = "This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-24-23965. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.",

year = "2011",

doi = "10.1364/OE.19.023965",

language = "English",

volume = "19",

pages = "23965--23980",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "24",

}

TY - JOUR

T1 - Thermo-optical effects in high-power Ytterbium-doped fiber amplifiers

AU - Hansen, Kristian Rymann

AU - Alkeskjold, Thomas Tanggaard

AU - Broeng, Jes

AU - Lægsgaard, Jesper

N1 - This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-24-23965. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

PY - 2011

Y1 - 2011

N2 - We investigate the effect of temperature gradients in high-power Yb-doped fiber amplifiers by a numerical beam propagation model, which takes thermal effects into account in a self-consistent way. The thermally induced change in the refractive index of the fiber leads to a thermal lensing effect, which decreases the effective mode area. Furthermore, it is demonstrated that the thermal lensing effect may lead to effective multi-mode behavior, even in single-mode designs, which could possibly lead to degradation of the output beam quality.

AB - We investigate the effect of temperature gradients in high-power Yb-doped fiber amplifiers by a numerical beam propagation model, which takes thermal effects into account in a self-consistent way. The thermally induced change in the refractive index of the fiber leads to a thermal lensing effect, which decreases the effective mode area. Furthermore, it is demonstrated that the thermal lensing effect may lead to effective multi-mode behavior, even in single-mode designs, which could possibly lead to degradation of the output beam quality.

U2 - 10.1364/OE.19.023965

DO - 10.1364/OE.19.023965

M3 - Journal article

SN - 1094-4087

VL - 19

SP - 23965

EP - 23980

JO - Optics Express

JF - Optics Express

IS - 24

ER -

Thermo-optical effects in high-power Ytterbium-doped fiber amplifiers

Abstract

Bibliographical note

Access to Document

OpenUrl availability

Fingerprint

Cite this