A passive enhancement cavity with 240-fold gain converts 8 W of ytterbium laser light into 1.9 kW of circulating power, producing 0.65 mW of terahertz radiation from a 50-micrometer lithium niobate plate at 93 MHz.
Low frequency-to-intensity noise conversion in a pulsed laser cavity locking by exploiting Carrier-Envelope Offset manipulation
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abstract
We report on the dependence of the frequency-to-intensity noise conversion in the locking of an ultrafast laser against a high-finesse optical resonator from the Carrier Envelope Offset (CEO) frequency. By a proper combination of the cavity finesse and laser CEO frequency it is possible to optimize the signal-to-noise ratio of the laser intensity trapped into the optical resonator. The theoretical description of the problem together with the numerical simulations and experimental results are presented with the aim of a strong suppression of the intensity fluctuations of the trapped laser field.
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physics.optics 1years
2025 1verdicts
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Ytterbium-laser-driven THz generation in thin lithium niobate at 1.9 kW average power in a passive enhancement cavity
A passive enhancement cavity with 240-fold gain converts 8 W of ytterbium laser light into 1.9 kW of circulating power, producing 0.65 mW of terahertz radiation from a 50-micrometer lithium niobate plate at 93 MHz.