Pulse shaping of octave spanning femtosecond laser pulses
2006; Optica Publishing Group; Volume: 14; Issue: 22 Linguagem: Inglês
10.1364/oe.14.010939
ISSN1094-4087
AutoresBingwei Xu, Yves Coello, Vadim V. Lozovoy, D. Ahmasi Harris, Marcos Dantus,
Tópico(s)Advanced Fluorescence Microscopy Techniques
ResumoCharacterization and pulse shaping of octave spanning femtosecond lasers poses a significant challenge. We have constructed a grating-based pulse shaper for an ultra-broad-bandwidth (620-1020 nm)femtosecond laser, and used it to compensate the phase distortions of the laser, spatial-light modulator and optics within 0.1 rad accuracy accross the entire bandwidth using Multiphoton Intrapulse Interference Phase Scan (MIIPS) without a precompressor. The compensated transform limited pulses generated a second harmonic spectrum with a 12,260 cm(-1) spectral width. Binary phase modulation was introduced by this pulse shaping system to demonstrate high resolution control of the second harmonic generation spectrum.
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