All-fiber sixth-harmonic generation of deep UV

Wang, Yun and Lee, Timothy and De Lucia, Francesco and Abdul Khudus, Muhammad Imran Mustafa and Sazio, Pier J.A. and Beresna, Martynas and Brambilla, Gilberto (2017) All-fiber sixth-harmonic generation of deep UV. Optics Letters, 42 (22). p. 4671. ISSN 0146-9592, DOI

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We simulate and experimentally demonstrate deep ultraviolet generation from a 1550 nm laser source in a fully fiberized system by cascading second- and third-harmonic generation using a periodically poled silica fiber and an optical sub-micron diameter fiber. Harmonic generation is achieved by harnessing intermodal phase matching in optical microfibers and a permanent χ(2) induced via thermal poling. As a result, efficient nonlinear processes can be observed, despite the low third-order nonlinear susceptibility of silica glass.

Item Type: Article
Funders: Engineering and Physical Sciences Research Council (EPSRC) (EP/L01243X/1, EP/I035307/1)
Uncontrolled Keywords: Deep ultraviolet; Laser sources; Microfibers; Nonlinear process; Periodically poled; Second and third harmonics; Thermal poling; Third-order nonlinear susceptibility
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 22 Oct 2019 06:42
Last Modified: 22 Oct 2019 06:42

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