Abstract

We demonstrate the use of an aperiodic quasi-phase-matching (QPM) grating to generate second-harmonic pulses that are stretched or compressed relative to input pulses at the fundamental frequency. We frequency doubled an externally chirped erbium-doped fiber laser generating 17-ps (FWHM) pulses at 1560 nm to produce near-transform-limited 110-fs (FWHM) pulses at 780 nm by use of a 5-cm-long lithium niobate crystal poled with a QPM grating chirped from an 18.2- to a 19.8-$\mathit{\mu }\mathrm{m}$ period.

© 1997 Optical Society of America

Pulse compression during second-harmonic generation in aperiodic quasi-phase-matching gratings

M. A. Arbore, O. Marco, and M. M. Fejer
Opt. Lett. 22(12) 865-867 (1997)

Chirped-pulse-amplification circuits for fiber amplifiers, based on chirped-period quasi-phase-matching gratings

A. Galvanauskas, D. Harter, M. A. Arbore, M. H. Chou, and M. M. Fejer
Opt. Lett. 23(21) 1695-1697 (1998)

Tunable-chirp pulse compression in quasi-phase-matched second-harmonic generation

A. M. Schober, G. Imeshev, and M. M. Fejer
Opt. Lett. 27(13) 1129-1131 (2002)

Engineerable femtosecond pulse shaping by second-harmonic generation with Fourier synthetic quasi-phase-matching gratings

G. Imeshev, A. Galvanauskas, D. Harter, M. A. Arbore, M. Proctor, and M. M. Fejer
Opt. Lett. 23(11) 864-866 (1998)

Frequency doubling of femtosecond erbium-fiber soliton lasers in periodically poled lithium niobate

M. A. Arbore, M. M. Fejer, M. E. Fermann, A. Hariharan, A. Galvanauskas, and D. Harter
Opt. Lett. 22(1) 13-15 (1997)