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Optics Letters

Optics Letters


  • Vol. 26, Iss. 1 — Jan. 1, 2001
  • pp: 42–43

Fabrication and analysis of a directional coupler written in glass by nanojoule femtosecond laser pulses

Alexander M. Streltsov and Nicholas F. Borrelli  »View Author Affiliations

Optics Letters, Vol. 26, Issue 1, pp. 42-43 (2001)

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A directional coupler written in a glass sample by the focused 400-nm output from a 25-fs oscillator is reported. The coupler is single mode; the splitting ratio is 1.9 dB at 633 nm. A refractive-index profile of the waveguide with a magnitude of Δn = 4.5 × 10-3 was retrieved from a near-field mode pattern.

© 2001 Optical Society of America

OCIS Codes
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.7370) Optical devices : Waveguides
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
(320.7160) Ultrafast optics : Ultrafast technology

Alexander M. Streltsov and Nicholas F. Borrelli, "Fabrication and analysis of a directional coupler written in glass by nanojoule femtosecond laser pulses," Opt. Lett. 26, 42-43 (2001)

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