Pulse-on-demand laser operation from nanosecond to femtosecond pulses and its application for high-speed processing

Abstract In this manuscript we present a true pulse-on-demand laser design concept using two different approaches. First, fiber master oscillator power amplifier (MOPA) based quasi-continuous wave (CW) laser, working at high modulation bandwidths, for generation of nanosecond pulses. Second, hybrid chirped pulse amplification (CPA)-based combining chirped-pulse and an additional solid-state amplifier, femtosecond The operation is achieved without external optical modulator/shutter high-average powers flexible repetition rates up to 40 MHz, variants the approach near-constant gain in chain. idler marker seed sources are combined stages separated out either wavelength-based separation or second harmonic (SHG)-generation-based separation. source further applied throughput processing thin film materials. with resonant scanner, intrinsic compensate scanner’s sinusoidal movement. We setup indium tin oxide (ITO) metallic films on substrates.