Measurement of thermal lensing in a diode-pumped Nd: YVO₄ laser using a Hartman wavefront analyser

T. McGregor; J. M. Dawes; P. Dekker; D. Coutts

Measurement of thermal lensing in a diode-pumped Nd: YVO₄ laser using a Hartman wavefront analyser

T. McGregor, J. M. Dawes, P. Dekker, D. Coutts

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

We measured the thermal distortion induced on an optical probe beam passing through a diode-end-pumped Nd:YVO4 laser crystal under lasing and non-lasing conditions. A Hartmann wavefront analyser was used to measure the probe beam wavefront, which was analysed with a Zernike polynomial basis. The resulting thermal distortions were compared with a model of thermal lensing. For high pump powers, agreement was reasonable. Some limitations in the use of the Hartmann analyser were identified. Our ultimate goal is to use a deformable mirror to compensate in real time for the beam distortions.

Original language	English
Title of host publication	16th National Congress of the Australian Institute of Physics
Subtitle of host publication	physics for the nation : congress handbook and abstracts
Editors	Max Colla
Place of Publication	Canberra, A.C.T.
Publisher	Australian National University
Number of pages	4
ISBN (Print)	0959806482
Publication status	Published - 2005
Event	Australian Institute of Physics National Congress (16th : 2005) - Canberra Duration: 30 Jan 2005 → 4 Feb 2005

Conference

Conference	Australian Institute of Physics National Congress (16th : 2005)
City	Canberra
Period	30/01/05 → 4/02/05

Access to Document

http://aipcongress2005.anu.edu.au/pdf/PAPERS-2.pdf

Cite this

McGregor, T., Dawes, J. M., Dekker, P., & Coutts, D. (2005). Measurement of thermal lensing in a diode-pumped Nd: YVO₄ laser using a Hartman wavefront analyser. In M. Colla (Ed.), 16th National Congress of the Australian Institute of Physics: physics for the nation : congress handbook and abstracts Australian National University. http://aipcongress2005.anu.edu.au/pdf/PAPERS-2.pdf

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title = "Measurement of thermal lensing in a diode-pumped Nd: YVO₄ laser using a Hartman wavefront analyser",

abstract = "We measured the thermal distortion induced on an optical probe beam passing through a diode-end-pumped Nd:YVO4 laser crystal under lasing and non-lasing conditions. A Hartmann wavefront analyser was used to measure the probe beam wavefront, which was analysed with a Zernike polynomial basis. The resulting thermal distortions were compared with a model of thermal lensing. For high pump powers, agreement was reasonable. Some limitations in the use of the Hartmann analyser were identified. Our ultimate goal is to use a deformable mirror to compensate in real time for the beam distortions.",

author = "T. McGregor and Dawes, {J. M.} and P. Dekker and D. Coutts",

year = "2005",

language = "English",

isbn = "0959806482",

editor = "Max Colla",

booktitle = "16th National Congress of the Australian Institute of Physics",

publisher = "Australian National University",

address = "Australia",

note = "Australian Institute of Physics National Congress (16th : 2005) ; Conference date: 30-01-2005 Through 04-02-2005",

}

McGregor, T, Dawes, JM , Dekker, P & Coutts, D 2005, Measurement of thermal lensing in a diode-pumped Nd: YVO₄ laser using a Hartman wavefront analyser. in M Colla (ed.), 16th National Congress of the Australian Institute of Physics: physics for the nation : congress handbook and abstracts. Australian National University, Canberra, A.C.T., Australian Institute of Physics National Congress (16th : 2005), Canberra, 30/01/05. <http://aipcongress2005.anu.edu.au/pdf/PAPERS-2.pdf>

Measurement of thermal lensing in a diode-pumped Nd: YVO₄ laser using a Hartman wavefront analyser. / McGregor, T.; Dawes, J. M.; Dekker, P. et al.
16th National Congress of the Australian Institute of Physics: physics for the nation : congress handbook and abstracts. ed. / Max Colla. Canberra, A.C.T.: Australian National University, 2005.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - Measurement of thermal lensing in a diode-pumped Nd

T2 - Australian Institute of Physics National Congress (16th : 2005)

AU - McGregor, T.

AU - Dawes, J. M.

AU - Dekker, P.

AU - Coutts, D.

PY - 2005

Y1 - 2005

N2 - We measured the thermal distortion induced on an optical probe beam passing through a diode-end-pumped Nd:YVO4 laser crystal under lasing and non-lasing conditions. A Hartmann wavefront analyser was used to measure the probe beam wavefront, which was analysed with a Zernike polynomial basis. The resulting thermal distortions were compared with a model of thermal lensing. For high pump powers, agreement was reasonable. Some limitations in the use of the Hartmann analyser were identified. Our ultimate goal is to use a deformable mirror to compensate in real time for the beam distortions.

AB - We measured the thermal distortion induced on an optical probe beam passing through a diode-end-pumped Nd:YVO4 laser crystal under lasing and non-lasing conditions. A Hartmann wavefront analyser was used to measure the probe beam wavefront, which was analysed with a Zernike polynomial basis. The resulting thermal distortions were compared with a model of thermal lensing. For high pump powers, agreement was reasonable. Some limitations in the use of the Hartmann analyser were identified. Our ultimate goal is to use a deformable mirror to compensate in real time for the beam distortions.

M3 - Conference proceeding contribution

SN - 0959806482

BT - 16th National Congress of the Australian Institute of Physics

A2 - Colla, Max

PB - Australian National University

CY - Canberra, A.C.T.

Y2 - 30 January 2005 through 4 February 2005

ER -

Measurement of thermal lensing in a diode-pumped Nd: YVO₄ laser using a Hartman wavefront analyser

Abstract

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