Title :
Germanosilicate glass: evidence of the new photosensitivity mechanism
Author :
Dianov, Evgeny M. ; Starodubov, D.S. ; Frolov, A.A.
Author_Institution :
Gen. Phys. Inst., Acad. of Sci., Moscow, Russia
Abstract :
Summary form only given. In conclusion, the photodestruction of germanium O/sub 2/ deficient centres (GODC) in optical fibres by near-UV direct excitation of GODC triplet-state was observed. The new mechanism of GODC transformation from excited-triplet-state to drawing induced defect (DID) was experimentally demonstrated. This mechanism gives the explanation of the discrepancy in blue luminescence change and index-change dynamics.
Keywords :
diffraction gratings; drawing (mechanical); noncrystalline defects; optical fibre fabrication; optical fibre testing; photoluminescence; refractive index; sensitivity; triplet state; GODC transformation; GODC triplet-state; blue luminescence change; drawing induced defect; excited-triplet-state; germanium O/sub 2/ deficient centres; germanosilicate glass; index-change dynamics; near-UV direct excitation; optical fibres; photodestruction; photosensitivity mechanism; Electrodes; Electrons; Fiber gratings; Frequency conversion; Glass; Ionization; Luminescence; Optimized production technology; Temperature dependence; Voltage;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
