High-power single-frequency 620 nm diamond laser

Xuezong Yang*, Ondrej Kitzler, David J. Spence, Robert J. Williams, Richard P. Mildren

*Corresponding author for this work

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

Abstract

High-power single-longitudinal-mode (SLM) lasers are crucial for applications such as LIGO, sodium guide stars, isotope separation and atom cooling, but are challenging due to gain profile inhomogeneities and spatial hole burning. This work shows that a SLM 620 nm laser is firstly achieved using a standing-wave diamond Raman resonator with intracavity second harmonic generation (SHG). In addition to the benefits of the spatial hole burning-free gain medium [1], SHG provides a valuable additional mechanism for increasing gain competition and therefore enhancing SLM stability. Nascent secondary modes experience double the nonlinear loss in the SHG crystal due to the role of sum frequency generation with the primary mode [2]. A further feature of the current external standing-wave cavity design is that the cavity is non-resonant at the pump frequency, thereby allowing the laser to be pumped without mutual control of the wavelength and cavity length and by using multi-longitudinal-mode (MLM) lasers with a spacing different to the free-spectral-range of the diamond Raman laser.

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
CountryAustralia
CityMelbourne
Period9/12/1912/12/19

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  • Cite this

    Yang, X., Kitzler, O., Spence, D. J., Williams, R. J., & Mildren, R. P. (2019). High-power single-frequency 620 nm diamond laser. In A. Mitchell, & H. Rubinsztein-Dunlop (Eds.), AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019 (pp. 1-2). [112001G] (Proceedings of SPIE; Vol. 11200). Bellingham, Washington: SPIE. https://doi.org/10.1117/12.2539013