Title :
Femtosecond pulsed 244nm versus CW 244nm grating writing in boron codoped germanosilicate optical fibres operating within the one photon absorption regime
Author :
Canagasabey, A. ; Canning, J. ; Mills, J.D. ; Banks, D.P. ; Ibsen, M.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., Southampton
Abstract :
We compare the performances of low intensity (~18 nJ/pulse) femtosecond 244 nm grating writing with that of CW (20 mW) 244 nm grating writing for fixed fluencies. We find no evidence of any improvement using pulsed light with duration commensurate with phonon-assisted relaxation away from the excited state.
Keywords :
diffraction gratings; optical fibres; boron codoped germanosilicate optical fibres; excited state; grating writing; one photon absorption regime; phonon-assisted relaxation; power 20 mW; pulsed light; wavelength 244 nm; Absorption; Boron; Fiber gratings; Glass; Ionization; Optical fiber polarization; Optical fibers; Optical pulses; Ultrafast optics; Writing;
Conference_Titel :
Optical Fibre Technology/Australian Optical Society, 2006. ACOFT/AOS 2006. Australian Conference on
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-0-9775657-1-9
Electronic_ISBN :
978-0-9775657-1-9
DOI :
10.1109/ACOFT.2006.4519254
