All-fiber sixth-harmonic generation of deep UV
Document Type
Article
Publication Date
1-1-2017
Abstract
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.
Keywords
Deep ultraviolet, Laser sources, Microfibers, Nonlinear process, Periodically poled, Second and third harmonics, Thermal poling, Third-order nonlinear susceptibility
Divisions
PHYSICS,photonics
Funders
Engineering and Physical Sciences Research Council (EPSRC) (EP/L01243X/1, EP/I035307/1)
Publication Title
Optics Letters
Volume
42
Issue
22
Publisher
Optical Society of America