Photosensitivity Color-Center Model for Ge-Doped Silica Preforms
نویسندگان
چکیده
منابع مشابه
Photosensitivity in tin-doped silica optical fibres
Permanent gratings (refractive index modulation ~3x10 ) were written in tin-doped silica -4 optical fibres with low levels of SnO (~0.15 mol %). In Ge-doped silica, ~10 mol% GeO is 2 2 required to produce comparable photorefractivity under similar conditions. Photosensitivity in tin-doped silica optical fibres G. Brambilla, V. Pruneri, L. Reekie Optoelectronics Research Centre, Southampton Univ...
متن کاملFabrication of corrugated Ge-doped silica fibers.
We present a method of fabricating Ge-doped SiO2 fibers with corrugations around their full circumference for a desired length in the longitudinal direction. The procedure comprises three steps: hydrogenation of Ge-doped SiO2 fibers to increase photosensitivity, recording of Bragg gratings with ultraviolet light to achieve modulation of refractive index, and chemical etching. Finite-length, rad...
متن کاملStrong photosensitivity in tin-doped silica films - Electronics Letters
1 ALLNUTT, J.E., and HAIDARA, F.: 'Ku-band diurnal rain fade statistics from three, two-year, earth-space experiments in equatorial Africa'. Proc. URSI Commission F Open Symp. Climatic Parameters in Radiowave Propagation Prediction, Ottawa, Canada, 27-29 April 1998, pp. 159-162 2 ALLNUTT, J.E., and HAIDARA, F.: 'Ku-band fade duration data from three, two-year, earth-space experiments in equator...
متن کاملPhotosensitivity in Ge-doped silica optical waveguides and fibers with 193-nm light from an ArF excimer laser.
Photosensitivity in optical fibers and waveguides has been associated with the bleaching of an absorption band located near 5.0 eV (or 242 nm). We present new results for Bragg grating formation and UV bleaching experiments carried out using 193-nm light from an ArF excimer laser instead of the usual laser sources operating near 242 or 248 nm.
متن کاملLocalized waveguide formation in germanosilicate fiber transmitting femtosecond IR pulses.
Transmission of intense femtosecond 825 nm pulses progressively produces a waveguide at the entrance of a heavily Ge-doped silicate fiber. The waveguide behaves as a multimillimeter long-fiber bandpass filter that scatters away light with wavelengths shorter or longer than 850 nm. This phenomenon has been correlated with the ~800 nm photosensitivity producing type I-IR fiber Bragg gratings in s...
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ژورنال
عنوان ژورنال: IEEE Photonics Journal
سال: 2013
ISSN: 1943-0655
DOI: 10.1109/jphot.2013.2278117