Compact design of Q-switched laser systems based on liquid crystal transducers

Xinyue Lei*, Victor Karaganov, Francois Ladouceur, Leonardo Silvestri, Alex Fuerbach

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

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    Abstract

    We present a compact design for a 1064 nm Q-Switched waveguide laser based on a liquid crystal transducer. Directly integrating the input-coupling mirror on the chip and utilising a Grin lens to also integrate the modulator optics enables a miniaturised setup. The preliminary experimental results have demonstrated that the Q-switched laser pulses with a pulse width of 45 ns and average output power of 4.5 mW can be achieved with a pump power of 350 mW, when an electrical signal with a repetition rate of 5 kHz, a peak-To-peak voltage of 30 V and a duration of 4 μs is applied. This work was supported by the Office of Naval Research Global (N62909-18-1-2147).

    Original languageEnglish
    Title of host publicationAOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019
    EditorsArnan Mitchell, Halina Rubinsztein-Dunlop
    Place of PublicationBellingham, Washington
    PublisherSPIE
    Pages1-2
    Number of pages2
    ISBN (Electronic)9781510631410
    ISBN (Print)9781510631403
    DOIs
    Publication statusPublished - 30 Dec 2019
    EventAOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019 - Melbourne, Australia
    Duration: 9 Dec 201912 Dec 2019

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume11200
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferenceAOS Australian Conference on Optical Fibre Technology, ACOFT 2019 and Australian Conference on Optics, Lasers, and Spectroscopy, ACOLS 2019
    Country/TerritoryAustralia
    CityMelbourne
    Period9/12/1912/12/19

    Bibliographical note

    Copyright 2019 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

    Keywords

    • Lasers
    • Liquid crystal
    • Q-switched lasers

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