Frequency doubling of femtosecond erbium-fiber soliton lasers in periodically poled lithium niobate
- 1 January 1997
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 22 (1), 13-15
- https://doi.org/10.1364/ol.22.000013
Abstract
We report efficient frequency doubling of passively mode-locked femtosecond erbium-fiber lasers. Quasi-phase-matched second-harmonic generation in periodically poled lithium niobate is used to generate 8.1 mW of 190-fs (FWHM), 90-pJ pulses at 777 nm with a conversion efficiency greater than can be obtained with existing birefringently phase-matched nonlinear materials. A dispersion-compensation-free soliton oscillator generating transform-limited 230-fs (FWHM) pulses at 1554 nm is used as a pump laser.Keywords
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