Title :
Long-period and fiber Bragg gratings fabricated by high-energy femtosecond pulses
Author :
Dostovalov, A.V. ; Wolf, A.A. ; Babin, S.A.
Author_Institution :
Inst. of Autom. & Electrometry, Novosibirsk, Russia
fDate :
June 30 2014-July 4 2014
Abstract :
The paper presents the results on long-period and fiber Bragg gratings inscription in non-photosensitive optical fibers by femtosecond radiation with the wavelengths of 513 nm and 1026 nm. The slit beam shaping method is proposed for LPG fabrication to increase the resonant peak amplitude and to reduce the out-of band losses due to smoother profile of refractive index change. The Bragg gratings were inscribed by a point-by-point method through plastic coating of various single mode fibers, SMF-28e+, Fibercore SM1500(9/125)P, Fibercore SM1500SC(9/125)P.
Keywords :
Bragg gratings; antireflection coatings; high-speed optical techniques; laser materials processing; optical beam splitters; optical fibre fabrication; optical fibre losses; refractive index; fiber Bragg grating fabrication; high-energy femtosecond pulses; long-period grating fabrication; nonphotosensitive optical fibers; out-of band loss reduction; plastic coating; point-by-point method; refractive index change; resonant peak amplitude; single-mode fibers; slit beam shaping method; wavelength 1026 nm; wavelength 513 nm; Fabrication; Loss measurement; Microscopy; Optical fibers; Ultrafast optics; Writing; femtosecond inscription; fiber Bragg grating; long-period grating; refractive index change;
Conference_Titel :
Laser Optics, 2014 International Conference
Conference_Location :
Saint Petersburg
Print_ISBN :
978-1-4799-3884-1
DOI :
10.1109/LO.2014.6886478
