An all-fiber chirped pulse amplification (CPA) system and method is
provided that utilizes a hollow core photonic bandgap fiber as a pulse
compressor and a dispersion compensating optical fiber as a pulse
stretcher that are matched with respect to both the amount and slope of
dispersion to avoid peak power-limiting pulse distortion. The CPA system
includes a rare earth ion-doped optical fiber amplifier having an input
and an output that amplifies optical pulses having a center wavelength of
.lamda.c, a pulse compressing length L1 of hollow core photonic bandgap
fiber having a dispersion value D1 and a dispersion slope S1 that varies
over a wavelength .lamda. of the pulses that is optically connected to
the output of the fiber amplifier and having a k-parameter defined by a
ratio of D1 over the slope of the function D1(.lamda.) that is larger
than about 50, and a pulse stretching length L2 of dispersion
compensating optical fiber connected to the input of the fiber amplifier
having a dispersion value D2 and dispersion slope S2. The lengths are
selected such that L1D1=-L2D2, and the center wavelength .lamda.c of the
inputted optical pulses is preferably close to the center wavelength of
the bandgap of the photonic bandgap fiber.