Fabrication of optical waveguide in glass by laser-induced crystallization

R. Ihara, Y. Benino, T. Fujiwara, T. Komatsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)


Homogeneous crystal lines were fabricated at the surface of 8Sm 2O3.37Bi2O3.55B2O 3 glass by irradiations of cw Nd: YAG laser (λ = 1064 nm) with laser powers of 0.7-0.9 W and laser scanning speeds of 3-5 μm/s. It was confirmed from micro-Raman scattering spectra that the lines consist of nonlinear optical SmxBi1-x-BO3 crystals showing second harmonic generations. The curved crystal lines with bending angles of 0∼90° were successfully written by just changing laser scanning directions. The light (λ = 632.8 nm) transmission was confirmed for a crystal line (length: 850 μm) with two bending angles of ±30°, where significant light scattering losses were not observed at the bending points. We propose that the curved crystal lines written by YAG laser irradiations have a high potential for applications in optical waveguides.

Original languageEnglish
Title of host publicationAICAM 2005 - Proceedings of the Asian International Conference on Advanced Materials
PublisherTrans Tech Publications
Number of pages4
ISBN (Print)0878499792, 9780878499793
Publication statusPublished - 2006
Externally publishedYes
EventAICAM 2005 - Asian International Conference on Advanced Materials - Beijing, China
Duration: Nov 3 2005Nov 5 2005

Publication series

NameAdvanced Materials Research
ISSN (Print)1022-6680


OtherAICAM 2005 - Asian International Conference on Advanced Materials


  • Glass
  • Laser-induced crystallization
  • Optical waveguide
  • Second harmonic generation

ASJC Scopus subject areas

  • Engineering(all)


Dive into the research topics of 'Fabrication of optical waveguide in glass by laser-induced crystallization'. Together they form a unique fingerprint.

Cite this