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  • Vol. 21, Iss. 21 — Nov. 1, 1996
  • pp: 1729–1731

Writing waveguides in glass with a femtosecond laser

K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao  »View Author Affiliations


Optics Letters, Vol. 21, Issue 21, pp. 1729-1731 (1996)
http://dx.doi.org/10.1364/OL.21.001729


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Abstract

With the goal of being able to create optical devices for the telecommunications industry, we investigated the effects of 810-nm, femtosecond laser radiation on various glasses. By focusing the laser beam through a microscope objective, we successfully wrote transparent, but visible, round-elliptical damage lines inside high-silica, borate, soda lime silicate, and fluorozirconate (ZBLAN) bulk glasses. Microellipsometer measurements of the damaged region in the pure and Ge-doped silica glasses showed a 0.01–0.035 refractive-index increase, depending on the radiation dose. The formation of several defects, including Si E′ or Ge E′ centers, nonbridging oxygen hole centers, and peroxy radicals, was also detected. These results suggest that multiphoton interactions occur in the glasses and that it may be possible to write three-dimensional optical circuits in bulk glasses with such a focused laser beam technique.

© 1996 Optical Society of America

History
Original Manuscript: May 6, 1996
Published: November 1, 1996

Citation
K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao, "Writing waveguides in glass with a femtosecond laser," Opt. Lett. 21, 1729-1731 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-21-1729


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