Second harmonic generation in Ge-doped fibers with a mode-locked Kr+ laser
- 7 September 1987
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (10), 722-724
- https://doi.org/10.1063/1.98900
Abstract
We report on frequency doubling of the 647.1 nm line from a mode‐locked Kr+ laser in a single‐mode fiber with pure Ge‐doped core. The harmonic light at 323.5 nm builds up after about 20 min of laser irradiation at 647.1 nm. Peak powers as low as 600 W were sufficient to prepare the fibers for second harmonic generation.Keywords
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