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We demonstrate a 2090-nm 1-ps MOPA based on a Tm, Ho-fiber laser seeder and a Ho:YAG regenerative amplifier delivering 1.25-mJ pulses at a repetition rate of 1 kHz as a prospective driver laser for mid-IR frequency conversion. The output energy and the repletion rate are currently limited by the available seeder energy.
We report on an all-PM fiber oscillator-CPA system at 2.08 µm running at 7 MHz pulse repetition rate with 10 nJ pulse energy and 390 fs pulse duration behind external compression.
We present an all fiber THz spectrometer based on a novel scanning technique without any external moveable delay stage. The optical delay between the pump and probe pulses and thus the scanning range is controlled via the repetition rate of the laser source.
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...
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