Title :
Near-UV photosensitivity of germanosilicate glass: application for fiber grating fabrication
Author :
Dianov, E.M. ; Starodubov, D.S. ; Vasiliev, S.A. ; Frolov, A.A. ; Medvedkov, O.I.
Abstract :
In conclusion, we report for the first time to our knowledge the long-period grating fabrication in germanosilicate fiber by direct CW excitation of Ge O-deficient centre GODC triplet state. The estimation of induced index change gives the value 10/sup -4/. The obtained results demonstrate the possibility of index grating writing by near-UV light.
Keywords :
defect absorption spectra; diffraction gratings; optical fibre fabrication; optical fibre testing; optical fibres; photoluminescence; refractive index; triplet state; ultraviolet spectra; Ge O-deficient centre GODC triplet state; GeO/sub 2/-SiO/sub 2/; UV spectra; defect absorption spectra; direct CW excitation; fiber grating fabrication; germanosilicate fiber; germanosilicate glass; index grating writing; induced index change; long-period grating fabrication; near-UV light; near-UV photosensitivity; optical fiber measurements; photoluminescence; Absorption; Argon; Bleaching; Fiber gratings; Fiber lasers; Glass; Laser excitation; Luminescence; Optical device fabrication; Optical fibers;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1996. LEOS 96., IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-3160-5
DOI :
10.1109/LEOS.1996.565289
