Abstract

220-fs pulses with energies of $\sim 100 \mu \mathrm{J}$ have been generated by use of two different configurations of diode-pumped Yb-fiber chirped-pulse amplification systems. Energy scaling was demonstrated with $25‐\mu \mathrm{m}$-core diameter fibers, in which stable diffraction-limited output $\left(M^2\sim 1.1\right)$ was achieved. A two-stage fiber-amplifier system produced average powers of up to 5.5 W at $\sim 1‐\mathrm{MHz}$ pulse-repetition rate. A double-pass configuration provided 53-dB gain in a single Yb-fiber amplifier stage, thus eliminating the necessity for multiple amplification stages as well as the need for using polarization-preserving fibers.

© 2001 Optical Society of America

High-power chirped-pulse all-fiber amplification system based on large-mode-area fiber gratings

N. G. R. Broderick, D. J. Richardson, D. Taverner, J. E. Caplen, L. Dong, and M. Ibsen
Opt. Lett. 24(8) 566-568 (1999)

Generation of near-Fourier-transform-limited high-energy pulses in a chain of fiber–bulk amplifiers

Remus Nicolaescu, Edward S. Fry, and Thomas Walther
Opt. Lett. 26(1) 13-15 (2001)

High-average-power femtosecond fiber chirped-pulse amplification system

J. Limpert, T. Clausnitzer, A. Liem, T. Schreiber, H.-J. Fuchs, H. Zellmer, E.-B. Kley, and A. Tnnermann
Opt. Lett. 28(20) 1984-1986 (2003)

High-energy and high-peak-power nanosecond pulse generation with beam quality control in 200-µm core highly multimode Yb-doped fiber amplifiers

Ming-Yuan Cheng, Yu-Chung Chang, Almantas Galvanauskas, Pri Mamidipudi, Rupak Changkakoti, and Peter Gatchell
Opt. Lett. 30(4) 358-360 (2005)

High-energy in-fiber pulse amplification for coherent lidar applications

Valery Philippov, Christophe Codemard, Yoonchan Jeong, Carlos Alegria, Jayanta K. Sahu, Johan Nilsson, and Guy N. Pearson
Opt. Lett. 29(22) 2590-2592 (2004)