Coherent Array of White-Light Continuum Generated by Microlens Array

Controlled Multibeam Supercontinuum Generation With a Spatial Light Modulator

“…In this sense, focusing the beam by a microlens array is an attractive approach. Watanabe et al were the first to report a SC array by focusing femtosecond laser pulses into a liquid with a microlens array [17]. Cook and co-workers demonstrated the generation of coherent continuum filaments in B270 glass by using an array of diffractive microlenses (DMLs) [18].…”

Comb-like supercontinuum generation in bulk media

“…The preservation of the phase coherence in the process of white-light generation in bulk media has however been recently demonstrated in several different configurations: in the case of two spatially separated sources, [10][11][12] for a pair of collinear SC pulses, 13 and for a linear array of SC sources. 14 In this work we demonstrate a small-scale version of a femtosecond frequency comb by generating a "short" train of equally spaced and phase-locked SC pulses in a bulk material and studying their combined spectrum as a function of the pump pulse power.…”

Dynamic Control of Interference Effects Between Optical Filaments through Programmable Optical Phase Modulation

“…The mutualtemporal coherence of SC generated in glass was experimentally investigated using a diffraction-grating-based interferometer [19] and has been also demonstrated using collinear geometries with time-delayed pump pulses [20]. Watanabe et al studied the coherence of an array of continuum sources generated by focusing 130 fs pulses in water [21], concluding that they were mutually coherent. Baum et al demonstrated stable interference between the outputs of two noncollinearly phase-matched optical parametric amplifiers seeded by separate continua beams [22].…”