Mode competition in acousto-optically Q-switched planar waveguide lasers

Jianqiu Xu; H. J. Baker; D. R. Hall

doi:10.1016/j.optlastec.2006.02.001

Mode competition in acousto-optically Q-switched planar waveguide lasers

Jianqiu Xu, H. J. Baker, D. R. Hall

School of Engineering & Physical Sciences

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

3 Citations (Scopus)

Abstract

Multi-mode rate equations have been developed to investigate mode competition in high-power acousto-optically Q-switched planar waveguide lasers. The mode competition arises from coupling effects and temporal losses in the transform between guided modes and free-space propagation. Pulse-to-pulse instability and temporal beam distortions are enlarged by mode competition when the laser works in the multi-mode regime. The influence of parasitic oscillation is also discussed. A Nd:YAG planar waveguide laser has been established with a folded hybrid/unstable resonator. A maximum average power of 83 W with a beam propagation factor M_x² × M_y² = 1.2 × 1.4 is obtained. The theoretical simulation agrees well with the experimental observation. © 2006 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	814-820
Number of pages	7
Journal	Optics and Laser Technology
Volume	39
Issue number	4
DOIs	https://doi.org/10.1016/j.optlastec.2006.02.001
Publication status	Published - Jun 2007

Keywords

Mode competition
Planar waveguide laser
Q-switching

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10.1016/j.optlastec.2006.02.001

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title = "Mode competition in acousto-optically Q-switched planar waveguide lasers",

abstract = "Multi-mode rate equations have been developed to investigate mode competition in high-power acousto-optically Q-switched planar waveguide lasers. The mode competition arises from coupling effects and temporal losses in the transform between guided modes and free-space propagation. Pulse-to-pulse instability and temporal beam distortions are enlarged by mode competition when the laser works in the multi-mode regime. The influence of parasitic oscillation is also discussed. A Nd:YAG planar waveguide laser has been established with a folded hybrid/unstable resonator. A maximum average power of 83 W with a beam propagation factor Mx2 × My2 = 1.2 × 1.4 is obtained. The theoretical simulation agrees well with the experimental observation. {\textcopyright} 2006 Elsevier Ltd. All rights reserved.",

keywords = "Mode competition, Planar waveguide laser, Q-switching",

author = "Jianqiu Xu and Baker, {H. J.} and Hall, {D. R.}",

year = "2007",

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AU - Xu, Jianqiu

AU - Baker, H. J.

AU - Hall, D. R.

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N2 - Multi-mode rate equations have been developed to investigate mode competition in high-power acousto-optically Q-switched planar waveguide lasers. The mode competition arises from coupling effects and temporal losses in the transform between guided modes and free-space propagation. Pulse-to-pulse instability and temporal beam distortions are enlarged by mode competition when the laser works in the multi-mode regime. The influence of parasitic oscillation is also discussed. A Nd:YAG planar waveguide laser has been established with a folded hybrid/unstable resonator. A maximum average power of 83 W with a beam propagation factor Mx2 × My2 = 1.2 × 1.4 is obtained. The theoretical simulation agrees well with the experimental observation. © 2006 Elsevier Ltd. All rights reserved.

AB - Multi-mode rate equations have been developed to investigate mode competition in high-power acousto-optically Q-switched planar waveguide lasers. The mode competition arises from coupling effects and temporal losses in the transform between guided modes and free-space propagation. Pulse-to-pulse instability and temporal beam distortions are enlarged by mode competition when the laser works in the multi-mode regime. The influence of parasitic oscillation is also discussed. A Nd:YAG planar waveguide laser has been established with a folded hybrid/unstable resonator. A maximum average power of 83 W with a beam propagation factor Mx2 × My2 = 1.2 × 1.4 is obtained. The theoretical simulation agrees well with the experimental observation. © 2006 Elsevier Ltd. All rights reserved.

KW - Mode competition

KW - Planar waveguide laser

KW - Q-switching

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DO - 10.1016/j.optlastec.2006.02.001

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VL - 39

SP - 814

EP - 820

JO - Optics and Laser Technology

JF - Optics and Laser Technology

IS - 4

ER -

Mode competition in acousto-optically Q-switched planar waveguide lasers

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