Tunable 2.3–3 μm optical vortex parametric laser

Abstract We generate a tunable (2.3–3 μ m) optical vortex output with an order of 1 or 2 from a 1 μ m optical-vortex-pumped singly resonant parametric oscillator based on a Mg doped periodically poled lithium niobate crystal. The orbital angular momentum (OAM) from the pump vortex beam was transferr...

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Bibliographic Details
Published inLaser physics Vol. 32; no. 4; pp. 45001 - 45005
Main Authors Wang, Shutong, Tulake, Yusufu, Sulaiman, Dulikun, Ababaike, Mairihaba, Miyamoto, Katsuhiko, Omatsu, Takashige, Yusufu, Taximaiti
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.04.2022
Subjects
nonlinear optics
optical vortices
parametric oscillators and amplifiers
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Summary:Abstract We generate a tunable (2.3–3 μ m) optical vortex output with an order of 1 or 2 from a 1 μ m optical-vortex-pumped singly resonant parametric oscillator based on a Mg doped periodically poled lithium niobate crystal. The orbital angular momentum (OAM) from the pump vortex beam was transferred to the mid-infrared idler output in this signal singly resonant high-Q cavity configuration. A maximum vortex output energy of 1.52 mJ was achieved within a wavelength tuning range of 2.27–2.96 µ m. The signal beam with the Gaussian spatial profile was also generated within a 1.66–2 μ m tuning range. The wide spectral bandwidth was experimentally measured near the wavelength degeneracy and explained by theoretically.
Bibliography:2021LPL0477
ISSN:1054-660X
1555-6611
DOI:10.1088/1555-6611/ac57b4