We describe the fabrication of chirped gratings in a specially developed photosensitive large-mode-area fiber and report the use of these components in a picosecond all-fiber chirped-pulse-amplification circuit. We demonstrate the generation of microjoule energy pulses with peak powers in excess of 500 kW, which we believe to be a record peak power from an all-fiber system.
© 1999 Optical Society of America
(050.1590) Diffraction and gratings : Chirping
(050.2770) Diffraction and gratings : Gratings
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(320.5390) Ultrafast optics : Picosecond phenomena
N. G. R. Broderick, D. J. Richardson, D. Taverner, J. E. Caplen, L. Dong, and M. Ibsen, "High-power chirped-pulse all-fiber amplification system based on large-mode-area fiber gratings," Opt. Lett. 24, 566-568 (1999)