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We demonstrate a coherent polarization beam combination of two-channel picosecond pulses based on a microcontroller-based phase-locking method. This simple and low-cost technique enables easy programming and automatic relocking of the relative phases between two fiber amplifiers. The total average power of the combined laser is 30.4 W, corresponding to a combining efficiency of 91%. The microcontroller-based...
We obtained an ultraviolet frequency comb of 1.58 W in average power by frequency quadrupling a high-power large-mode-area fiber chirped-pulse amplifier at 1032 nm, whose carrier envelop ephase was stabilized down to a linewidth of 2.42 m Hz via feedback control on the Ti:S seed oscillator.
High power carrier-envelop phase stabilized 1030 nm pulses was generated by amplifying the fractional output spectrum of a passive mode-locked Ti:sapphire laser, exhibited 4.89 mHz long-term frequency fluctuation and 1.9 mHz beat signal linewidth.
We demonstrate a passive synchronization between a high power nanosecond fiber laser and a femtosecond Ti:sapphire laser with a cavity-length mismatch tolerance up to 8 cm and a timing jitter of 13 ps.
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