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Applied Optics

Applied Optics


  • Vol. 35, Iss. 31 — Nov. 1, 1996
  • pp: 6249–6252

Optical properties of dual-core hollow waveguides

Christopher D. Rabii and James A. Harrington  »View Author Affiliations

Applied Optics, Vol. 35, Issue 31, pp. 6249-6252 (1996)

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A new type of hollow glass waveguide has been fabricated that transmits radiation from visible to infrared wavelengths with low loss. The broadband transmission is achieved with a structure consisting of two distinct core regions; a silica annulus for transmission of wavelengths from 0.3 to 2.0 mm and a hollow core for transmission from 2.0 to 12.0 mm. Losses in the silica core at 633 nm are 0.3 dB/m. Losses in the 575-mm bore hollow core at 10.6 μm are 0.6 dB/m. Bending loss is negligible for radiation transmitted in the solid silica core, whereas the hollow guide loss exhibits a 1/R dependence. The dual-core waveguide can transmit broadband radiation, is rugged and flexible, and therefore, is a good candidate for medical or sensor applications.

© 1996 Optical Society of America

Original Manuscript: February 26, 1996
Revised Manuscript: February 26, 1996
Published: November 1, 1996

Christopher D. Rabii and James A. Harrington, "Optical properties of dual-core hollow waveguides," Appl. Opt. 35, 6249-6252 (1996)

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