title: Compact and portable multiline UV and visible Raman lasers in hydrogen-filled HC-PCF.
abstract: We report on the realization of compact UV visible multiline Raman lasers based on two types of hydrogen-filled hollow-core photonic crystal fiber. The first, with a large pitch Kagome lattice structure, offers a broad spectral coverage from near IR through to the much sought after yellow, deep-blue and UV, whereas the other, based on photonic bandgap guidance, presents a pump conversion concentrated in the visible region. The high Raman efficiency achieved through these fibers allows for compact, portable diode-pumped solid-state lasers to be used as pumps. Each discrete component of this laser system exhibits a spectral density several orders of magnitude larger than what is achieved with supercontinuum sources and a narrow linewidth, making it an ideal candidate for forensics and biomedical applications.
authors.affiliation: Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Bath, BA2 7AY, UK.
authors.forename: Y Y
authors.initials: YY
authors.lastname: Wang
authors.forename: F
authors.initials: F
authors.lastname: Couny
authors.forename: P S
authors.initials: PS
authors.lastname: Light
authors.forename: B J
authors.initials: BJ
authors.lastname: Mangan
authors.forename: F
authors.initials: F
authors.lastname: Benabid
mesh_terms: D006859:Hydrogen; D007834:Lasers; D008855:Microscopy, Electron, Scanning; D017785:Photons; D013059:Spectrum Analysis, Raman; D014466:Ultraviolet Rays
chemical_list: D006859:Hydrogen