Mid-infrared transmission properties of amorphous germanium optical fibers

Priyanth Mehta, Mahesh Krishnamurthi, Noel Healy, Neil F. Baril, Justin R. Sparks, Pier J.A. Sazio, Venkatraman Gopalan, John V. Badding, Anna C. Peacock

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Germanium optical fibers have been fabricated using a high pressure chemical deposition technique to deposit the semiconductor material inside a silica capillary. The amorphous germanium core material has a small percentage of hydrogen that saturates the dangling bonds to reduce absorption loss. Optical transmission measurements were performed to determine the linear losses over a broad mid-infrared wavelength range with the lowest loss recorded at 10.6 μm. The extended transmission range measured in the germanium fibers demonstrates their potential for use in mid-infrared applications.

Original languageEnglish (US)
Article number071117
JournalApplied Physics Letters
Issue number7
StatePublished - Aug 16 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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