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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 5 — Mar. 1, 2011
  • pp: 687–688

Silica-clad crystalline germanium core optical fibers

J. Ballato, T. Hawkins, P. Foy, S. Morris, N. K. Hon, B. Jalali, and R. Rice  »View Author Affiliations


Optics Letters, Vol. 36, Issue 5, pp. 687-688 (2011)
http://dx.doi.org/10.1364/OL.36.000687


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Abstract

Silica-clad optical fibers comprising a core of crystalline germanium were drawn using a molten core technique. With respect to previous fibers drawn using a borosilicate cladding, the present fibers exhibit negligible oxygen despite being fabricated at more than twice the melting point of the germanium. The counterintuitive result of less oxygen when the fiber is drawn at a higher temperatures is discussed. The measured propagation loss for the fiber was 0.7 dB / cm at 3.39 μm , which is the lowest loss reported to date.

© 2011 Optical Society of America

OCIS Codes
(060.2290) Fiber optics and optical communications : Fiber materials
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(160.2290) Materials : Fiber materials
(160.4760) Materials : Optical properties
(160.6000) Materials : Semiconductor materials

ToC Category:
Materials

History
Original Manuscript: November 29, 2010
Manuscript Accepted: January 5, 2011
Published: February 24, 2011

Citation
J. Ballato, T. Hawkins, P. Foy, S. Morris, N. K. Hon, B. Jalali, and R. Rice, "Silica-clad crystalline germanium core optical fibers," Opt. Lett. 36, 687-688 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-5-687

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