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A 1.550 μm OPCPA utilizing a dual wavelength pumping scheme has been constructed. The system incorporates LBO and KTA for the first and second-stage amplifiers. Peak powers >310GW (60mJ, 180fs) at 10Hz have been achieved.
We report air filamentation by a 1550 nm subpicosecond pulse. During filamentation, the continuum generated was less than expected. A large amount of third harmonic was also generated.
Broad band satellite communication makes high demands on linear low phase noise signals. One example is HDTV. For this application converters are required (e.g. from 30 GHz to 20 GHz), which themselves require very low phase noise programmable synthesizers (LO). Most satellite companies today derive their 10 GHz LOs from multiplying a 100 MHz crystal oscillator again and again. Due to the arising...
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