Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS

Alan Paterson, Ralf Bauer, Ran Li, Caspar Clark, Walter Lubeigt, Deepak Uttamchandani

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

Active control of the spectral and temporal output characteristics of solid-state lasers through use of MEMS scanning micromirrors is presented. A side-pumped Nd:YAG laser with two intracavity scanning micromirrors, enabling Q-switching operation with controllable pulse duration and pulse-on-demand capabilities, is investigated. Changing the actuation signal of one micromirror allows a variation of the pulse duration between 370 ns and 1.06 μs at a pulse repetition frequency of 21.37 kHz and average output power of 50 mW. Pulse-on-demand lasing is enabled through actuation of the second micromirror. To our knowledge this is the first demonstration of the use of multiple intracavity MEMS devices as active tuning elements in a single solid-state laser cavity. Furthermore, we present the first demonstration of control over the output wavelength of a solid-state laser using a micromirror and a prism in an intracavity Littman configuration. A static tilt actuation of the micromirror resulted in tuning the output wavelength of an Yb:KGW laser from 1024 nm to 1031.5 nm, with FWHM bandwidths between 0.2 nm and 0.4 nm. These proof-of-principle demonstrations provide the first steps towards a miniaturized, flexible solid-state laser system with potential defense and industrial applications.
LanguageEnglish
Number of pages8
Publication statusPublished - 15 Jul 2016
EventSPIE Photonics West 2016 - San Francisco, United States
Duration: 13 Feb 201618 Feb 2016

Conference

ConferenceSPIE Photonics West 2016
CountryUnited States
CitySan Francisco
Period13/02/1618/02/16

Fingerprint

Q switched lasers
solid state lasers
microelectromechanical systems
actuation
output
pulse duration
pulses
tuning
scanning
active control
laser cavities
wavelengths
prisms
lasing
YAG lasers
repetition
bandwidth
configurations
lasers

Keywords

  • solid-state laser
  • Q-switch
  • wavelength tuning
  • scanning micromirror
  • MEMS

Cite this

Paterson, A., Bauer, R., Li, R., Clark, C., Lubeigt, W., & Uttamchandani, D. (2016). Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS. Paper presented at SPIE Photonics West 2016, San Francisco, United States.
Paterson, Alan ; Bauer, Ralf ; Li, Ran ; Clark, Caspar ; Lubeigt, Walter ; Uttamchandani, Deepak. / Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS. Paper presented at SPIE Photonics West 2016, San Francisco, United States.8 p.
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abstract = "Active control of the spectral and temporal output characteristics of solid-state lasers through use of MEMS scanning micromirrors is presented. A side-pumped Nd:YAG laser with two intracavity scanning micromirrors, enabling Q-switching operation with controllable pulse duration and pulse-on-demand capabilities, is investigated. Changing the actuation signal of one micromirror allows a variation of the pulse duration between 370 ns and 1.06 μs at a pulse repetition frequency of 21.37 kHz and average output power of 50 mW. Pulse-on-demand lasing is enabled through actuation of the second micromirror. To our knowledge this is the first demonstration of the use of multiple intracavity MEMS devices as active tuning elements in a single solid-state laser cavity. Furthermore, we present the first demonstration of control over the output wavelength of a solid-state laser using a micromirror and a prism in an intracavity Littman configuration. A static tilt actuation of the micromirror resulted in tuning the output wavelength of an Yb:KGW laser from 1024 nm to 1031.5 nm, with FWHM bandwidths between 0.2 nm and 0.4 nm. These proof-of-principle demonstrations provide the first steps towards a miniaturized, flexible solid-state laser system with potential defense and industrial applications.",
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author = "Alan Paterson and Ralf Bauer and Ran Li and Caspar Clark and Walter Lubeigt and Deepak Uttamchandani",
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Paterson, A, Bauer, R, Li, R, Clark, C, Lubeigt, W & Uttamchandani, D 2016, 'Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS' Paper presented at SPIE Photonics West 2016, San Francisco, United States, 13/02/16 - 18/02/16, .

Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS. / Paterson, Alan; Bauer, Ralf; Li, Ran; Clark, Caspar; Lubeigt, Walter; Uttamchandani, Deepak.

2016. Paper presented at SPIE Photonics West 2016, San Francisco, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS

AU - Paterson, Alan

AU - Bauer, Ralf

AU - Li, Ran

AU - Clark, Caspar

AU - Lubeigt, Walter

AU - Uttamchandani, Deepak

N1 - Published in Proceedings of SPIE - The International Society for Optical Engineering, Vol 9726, paper 97261U, 15 July 2016

PY - 2016/7/15

Y1 - 2016/7/15

N2 - Active control of the spectral and temporal output characteristics of solid-state lasers through use of MEMS scanning micromirrors is presented. A side-pumped Nd:YAG laser with two intracavity scanning micromirrors, enabling Q-switching operation with controllable pulse duration and pulse-on-demand capabilities, is investigated. Changing the actuation signal of one micromirror allows a variation of the pulse duration between 370 ns and 1.06 μs at a pulse repetition frequency of 21.37 kHz and average output power of 50 mW. Pulse-on-demand lasing is enabled through actuation of the second micromirror. To our knowledge this is the first demonstration of the use of multiple intracavity MEMS devices as active tuning elements in a single solid-state laser cavity. Furthermore, we present the first demonstration of control over the output wavelength of a solid-state laser using a micromirror and a prism in an intracavity Littman configuration. A static tilt actuation of the micromirror resulted in tuning the output wavelength of an Yb:KGW laser from 1024 nm to 1031.5 nm, with FWHM bandwidths between 0.2 nm and 0.4 nm. These proof-of-principle demonstrations provide the first steps towards a miniaturized, flexible solid-state laser system with potential defense and industrial applications.

AB - Active control of the spectral and temporal output characteristics of solid-state lasers through use of MEMS scanning micromirrors is presented. A side-pumped Nd:YAG laser with two intracavity scanning micromirrors, enabling Q-switching operation with controllable pulse duration and pulse-on-demand capabilities, is investigated. Changing the actuation signal of one micromirror allows a variation of the pulse duration between 370 ns and 1.06 μs at a pulse repetition frequency of 21.37 kHz and average output power of 50 mW. Pulse-on-demand lasing is enabled through actuation of the second micromirror. To our knowledge this is the first demonstration of the use of multiple intracavity MEMS devices as active tuning elements in a single solid-state laser cavity. Furthermore, we present the first demonstration of control over the output wavelength of a solid-state laser using a micromirror and a prism in an intracavity Littman configuration. A static tilt actuation of the micromirror resulted in tuning the output wavelength of an Yb:KGW laser from 1024 nm to 1031.5 nm, with FWHM bandwidths between 0.2 nm and 0.4 nm. These proof-of-principle demonstrations provide the first steps towards a miniaturized, flexible solid-state laser system with potential defense and industrial applications.

KW - solid-state laser

KW - Q-switch

KW - wavelength tuning

KW - scanning micromirror

KW - MEMS

UR - http://spie.org/conferences-and-exhibitions/photonics-west

UR - http://spie.org/Documents/ConferencesExhibitions/PW16-Final-lr.pdf

M3 - Paper

ER -

Paterson A, Bauer R, Li R, Clark C, Lubeigt W, Uttamchandani D. Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS. 2016. Paper presented at SPIE Photonics West 2016, San Francisco, United States.