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Using only a short piece of gain fiber, a 570 MHz Yb-fiber oscillator was set up and mode-locked via NPE, assisted by spectral filtering. Tuning the filter enables changing both center wavelength or optical bandwidth.
We have explored the performance of 2 "dark fibers" of a commercial telecommunication fiber link for a remote comparison of optical clocks. These fibers establish a network in Germany that will eventually link optical frequency standards at PTB with those at the Institute of Quantum Optics (IQ) at the Leibniz University of Hanover, and the Max Planck Institutes in Erlangen (MPL) and Garching...
In this paper, by using a periodically poled LiNbO3 (PPLN) ridge waveguide for the sum-frequency generation (SFG), a high conversion efficiency to 589 nm light is obtained solely with a simple single pass wavelength conversion process without using an enhancement cavity.
In this contribution we present the external cavity enhancement of a 78MHz repetition rate 270 fs Yb-based fiber laser providing up to 20W average power. We measure a record high intra-cavity average circulating power of 13.7kW, which corresponds to more than 5 times the previously reported value.
We have explored the performance of two ldquodark fibersrdquo of a commercial telecommunication fiber link for a remote comparison of optical clocks. These fibers establish a network in Germany that will eventually link optical frequency standards at PTB with those at the Institute of Quantum Optics (IQ) at the Leibniz University of Hanover, and the Max Planck Institutes in Erlangen (MPL) and Garching...
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