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Generating few-cycle pulses with integrated nonlinear photonics



David Carlson, Phillips Hutchison, Daniel D. Hickstein, Scott Papp


Ultrashort laser pulses that last only a few optical cycles have been transformative tools for studying and manipulating ultrafast light--matter interactions. These few-cycle pulses are typically produced from high-peak-power lasers, either directly from the laser oscillator, or through nonlinear effects in bulk or fiber materials. However, for emerging ultrafast applications based on low-power integrated photonics, the few-cycle regime has thus far been unexplored. Here, we experimentally and numerically demonstrate how lithographically patterned waveguides can be used to generate few-cycle laser pulses from an input seed pulse, and we show how they can be applied to the creation of extremely constant-intensity supercontinuum spectra across octave bandwidths. An integrated source of few-cycle pulses could broaden the range of applications for ultrafast light sources, including supporting new lab-on-a-chip systems in a scalable form factor.
Optics Express


frequency comb, integrated photonics, supercontinuum generation, ultrashort pulses


Carlson, D. , Hutchison, P. , Hickstein, D. and Papp, S. (2019), Generating few-cycle pulses with integrated nonlinear photonics, Optics Express (Accessed April 17, 2024)
Created December 10, 2019, Updated March 25, 2024