We present ArF laser-induced dynamics of Bragg grating (BG) growths in phosphosilicate-doped or germanosilicate-doped core photonic crystal fibers
(PCFs). To this end, we have adapted the technique of
loading, usually used in conventional fiber, to the case of microstructured fiber, allowing both the concentration of hydrogen in the PCFs to be kept nearly constant for the time of the exposure and the BG spectra to be easily recorded. We compared the characteristics of BG growths in the two types of PCF to those in conventional step-index fibers. We then conducted a study of the thermal stability of the BGs in PCFs through 30 min of isochronal annealing.
At the same time we discuss the role played by the microstructuration and the doping with regard to the grating contrast and the Bragg wavelength stability.
© 2006 Optical Society of America
(050.1950) Diffraction and gratings : Diffraction gratings
(060.2270) Fiber optics and optical communications : Fiber characterization
(230.1480) Optical devices : Bragg reflectors
Diffraction and Gratings
Original Manuscript: March 8, 2006
Revised Manuscript: June 23, 2006
Manuscript Accepted: June 26, 2006
V. Beugin, L. Bigot, P. Niay, M. Lancry, Y. Quiquempois, M. Douay, G. Mélin, A. Fleureau, S. Lempereur, and L. Gasca, "Efficient Bragg gratings in phosphosilicate and germanosilicate photonic crystal fiber," Appl. Opt. 45, 8186-8193 (2006)