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)
76 Downloads (Pure)

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.
Original 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

Keywords

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

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  • Projects

    Research Output

    • 2 Citations
    • 2 Conference contribution book

    Q-switched tunable solid-state laser using a MOEMS mirror

    Paterson, A., Bauer, R., Lubeigt, W. & Uttamchandani, D., 26 Sep 2017, 2017 International Conference on Optical MEMS and Nanophotonics (OMN) - Proceedings. Piscataway, NJ: IEEE, 2 p. 8051449

    Research output: Chapter in Book/Report/Conference proceedingConference contribution book

    Open Access
    File
  • 2 Citations (Scopus)
    18 Downloads (Pure)

    Wavelength tuning of a solid-state laser with a tilting mems micromirror

    Paterson, A., Bauer, R., Li, R., Lubeigt, W. & Uttamchandani, D., 15 Sep 2016, 2016 International Conference on Optical Mems and Nanophotonics (OMN) . Piscataway, NJ: IEEE, 2 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution book

    Open Access
    File
  • 33 Downloads (Pure)

    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.