In applications involving lasers with high peak intensities, such as optical amplification or pulse delivery through an optical fiber, self-phase modulation is an unwanted phenomenon which affects the spectrum, phase, and temporal profile of laser pulses. Here we report on the use of binary phase shaping for mitigation of self-phase modulation. We provide theoretical simulation and estimated efficiency of the mitigation supported by experimental results using both chirped and binary phase shaped pulses.
The transition of femtosecond lasers from the laboratory to commercial applications requires real-time automated pulse compression, ensuring optimum performance without assistance. Single-shot phase measurements together with closed-loop optimization based on real-time multiphoton intrapulse interference phase scan are demonstrated. On-the-fly correction of amplitude, as well as second- and third-order phase distortions based on the real-time measurements, is accomplished by a pulse shaper.
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