Mehta, Priyanth, Krishnamurthi, Mahesh, Healy, Noel, Baril, Neil F., Sparks, Justin R., Sazio, Pier J.A., Gopalan, Venkatraman, Badding, John V. and Peacock, Anna C.
Mid-infrared transmission properties of amorphous germanium optical fibers
Applied Physics Letters, 97, (7), . (doi:10.1063/1.3481413).
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.
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