A Nd:YAG Laser-Pumped Hydrogen Raman Shifter with Capillary Waveguide

  • Maria Leilani Torres
  • Marilou Cadatal
  • Wilson Garcia

Abstract

Operation of a 355/532 nm Nd:YAG laser-pumped hydrogen Raman shifter with capillary waveguide (CWG) is demonstrated. For both pump wavelengths, more laser lines are generated using the Raman shifter with CWG compared to a conventional Raman shifter. Both 355 and 532 nm pumps showed a 60% decrease in threshold power for the generated first Stokes (S1) Laser line. The 355 nm-pumped Raman shifter with CWG generated S1 at 2.1 mW pump power at a hydrogen pressure of 1.38 MPa. On the other hand, for the 532 nm pumped waveguide Raman shifter at a hydrogen pressure of 1.72 MPa, the threshold power for S1 is at 8.3 mW. In addition, an improvement of the output powers is observed for the Stokes and anti-Stokes generated by Raman shifter with CWG.
Published
2007-07-02
How to Cite
TORRES, Maria Leilani; CADATAL, Marilou; GARCIA, Wilson. A Nd:YAG Laser-Pumped Hydrogen Raman Shifter with Capillary Waveguide. Science Diliman: A Journal of Pure and Applied Sciences, [S.l.], v. 17, n. 1, july 2007. ISSN 2012-0818. Available at: <https://journals.upd.edu.ph/index.php/sciencediliman/article/view/82>. Date accessed: 06 aug. 2025.
Citation Formats
Issue
Vol 17 No 1 (2005)
Section
Articles
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