Title :
Formation dynamics of Bragg phase gratings in photosensitive optical fibers
Author :
Kwak, Chong Hoon ; Kim, Kyong Hon ; Jeong, Jong Sool ; Suh, Ho Hyung ; Lee, El-Hang
Author_Institution :
Res. Dept., Electron. & Telecommun. Res. Inst., Taejon, South Korea
fDate :
7/1/1994 12:00:00 AM
Abstract :
A double-well potential model based on the local two-photon absorption photobleaching mechanism in blue-green wavelength region by oxygen-deficient Ge-Si bonds is presented and analyzed for describing the photostructural changes of a germanosilicate optical fiber. The growth dynamics are also derived from the coupled wave analysis, which describes the overall temporal behaviors of the grating reflectance and transmittance during the grating formations.<>
Keywords :
diffraction gratings; germanate glasses; optical fibre theory; optical fibres; optical saturable absorption; reflectivity; Bragg phase gratings; GeO/sub 2/-SiO/sub 2/; blue-green wavelength region; coupled wave analysis; double-well potential model; formation dynamics; germanosilicate optical fiber; grating formations; grating reflectance; grating transmittance; growth dynamics; local two-photon absorption photobleaching mechanism; overall temporal behavior; oxygen-deficient Ge-Si bonds; photosensitive optical fibers; photostructural changes of; Absorption; Bragg gratings; Fiber gratings; Optical fibers; Optical reflection; Optical refraction; Optical variables control; Photobleaching; Photochromism; Stationary state;
Journal_Title :
Photonics Technology Letters, IEEE
