Bragg gratings in defect-free germanium-doped optical fibers.
Bragg gratings have been written in germanium-doped optical fibers that have been treated to remove the UV absorption bands associated with oxygen-deficient defects. When one is using high-intensity 193-nm light from an ArF excimer laser to fabricate the gratings, the refractive index increases and the grating transmission spectra are similar to those obtained in standard (untreated) fiber.
Albert
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J
Hill
K O
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Johnson
D C
DC
Bilodeau
F
F
Mihailov
S J
SJ
Borrelli
N F
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Amin
J
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