Tunable Yb : KGW laser, CW or Q-switched, enabled by dual-axis tilt of a MOEMS mirror

Paterson, Alan and Bauer, Ralf and Lubeigt, Walter and Uttamchandani, Deepak (2018) Tunable Yb : KGW laser, CW or Q-switched, enabled by dual-axis tilt of a MOEMS mirror. IEEE Journal of Selected Topics in Quantum Electronics, 24 (5). 1601709. ISSN 1077-260X

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    Abstract

    The experimental proof-of-concept demonstration of an end-pumped Yb:KGW laser with tunable spectral and temporal output characteristics is reported. For the first time, tuning of both of these characteristics in a solid-state laser is achieved simultaneously using a single electrothermally-actuated MOEMS micromirror with controllable tilt angle in two dimensions. In continuous-wave mode, a wavelength tuning range of 22 nm with < 0.3 nm linewidth was achieved by using static MOEMS mirror tilt about one axis to select the intracavity wavelength dispersed by a prism. A wavelength tuning range of 15.3 nm with < 1.1 nm linewidth was achieved in Q-switched operation, by using simultaneous static tilt and resonant scanning of the MOEMS mirror about orthogonal axes. In this operational mode, a pulse repetition rate of 2.06 kHz was obtained with pulse durations varying from 460 ns to 740 ns over the addressable range of laser wavelengths.

    Author(s):Paterson, Alan ORCID logoORCID: https://orcid.org/0000-0003-1255-3254, Bauer, Ralf ORCID logoORCID: https://orcid.org/0000-0001-7927-9435, Lubeigt, Walter and Uttamchandani, Deepak ORCID logoORCID: https://orcid.org/0000-0002-2362-4874
    Item type:Article
    ID code:63438
    Keywords:digital laser control, tunable laser, end-pumped Yb:KGW laser, wavelength tuning, active Q-switch, MOEMS, micromirror, Electrical engineering. Electronics Nuclear engineering, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:07 Mar 2018 15:17
    Last modified:16 Aug 2019 03:04
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/63438
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