Compact and portable multiline UV and visible Raman lasers in hydrogen-filled HC-PCF

Opt Lett. 2010 Apr 15;35(8):1127-9. doi: 10.1364/OL.35.001127.

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.

MeSH terms

  • Hydrogen*
  • Lasers*
  • Microscopy, Electron, Scanning
  • Photons*
  • Spectrum Analysis, Raman*
  • Ultraviolet Rays*

Substances

  • Hydrogen