Open Access9-kW peak power and 150-fs duration blue-violet optical pulses generated by GaInN master oscillator power amplifier
Author(s) -
S. Kono,
Rintaro Koda,
Hidekazu Kawanishi,
Hironobu Narui
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.014926
Subject(s) - optics , materials science , dispersion (optics) , amplifier , optical amplifier , pulse duration , optoelectronics , group delay dispersion , femtosecond , laser , self phase modulation , nonlinear optics , physics , dispersion shifted fiber , optical fiber , fiber optic sensor , cmos
Blue-violet optical pulses of 9-kW peak power and 150-fs duration were obtained from a GaInN master oscillator power amplifier system using a nonlinear dispersion compensator. Seed pulses from a dispersion-compensated GaInN mode-locked semiconductor laser diode were stretched to 3-ps duration using a nonlinear dispersion compensator with a spatial light modulator that added second-order phase dispersion to an optimized nonlinear phase dispersion compensating the higher-order dispersion of the optical pulses. The stretched phase-optimized pulses were efficiently amplified to 3.0 nJ by a GaInN semiconductor optical amplifier. The amplified pulses were subsequently compressed using a linear pulse compressor, yielding 1.4-nJ femtosecond pulses. The obtained results show the highest peak-power ever reported for an electrically-pumped semiconductor gain medium.