Open AccessAmplified femtosecond pulses from an Er:fiber system: Nonlinear pulse shortening and selfreferencing detection of the carrier-envelope phase evolution
Author(s) -
F. Tauser,
Alfred Leitenstorfer,
Wolfgang Zinth
Publication year - 2003
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.11.000594
Subject(s) - supercontinuum , optics , carrier envelope phase , femtosecond , materials science , interferometry , fiber laser , amplifier , self phase modulation , pulse (music) , laser , phase (matter) , nonlinear optics , optical fiber , optoelectronics , physics , photonic crystal fiber , detector , cmos , quantum mechanics
We present an improved design of an amplified Er:fiber laser system for the generation of intense femtosecond pulses. By properly controlling the influence of optical nonlinearities inside a stretched pulse amplifier, the spectrum is broadened to over 100 nm. The pulses are recompressed to 65 fs. A linearly polarized output of 110 mW is obtained at 67 MHz repetition rate. As a first application, we report the generation of an octave-spanning supercontinuum inside a short piece of a highly nonlinear fiber. Self-referencing detection of the carrier-envelope phase evolution with an f-to-2f interferometer is demonstrated.