Quasi-phase-matched supercontinuum-generation in photonic waveguides
Abstract
Supercontinuum generation in integrated photonic waveguides is a versatile source of broadband light, and the generated spectrum is largely determined by the phase-matching conditions. Here we show that quasi-phase-matching via periodic modulations of the waveguide structure provides a useful mechanism to control the evolution of ultrafast pulses and the supercontinuum spectrum. We experimentally demonstrate quasi-phase-matched supercontinuum to the TE20 and TE00 waveguide modes, which enhances the intensity of the SCG in specific spectral regions by as much as 20 dB. We utilize higher-order quasi-phase-matching (up to the 16th order) to enhance the intensity in numerous locations across the spectrum. Quasi-phase-matching adds a unique dimension to the design-space for SCG waveguides, allowing the spectrum to be engineered for specific applications.
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Cite
@article{arxiv.1710.03821,
title = {Quasi-phase-matched supercontinuum-generation in photonic waveguides},
author = {Daniel D. Hickstein and Grace C. Kerber and David R. Carlson and Lin Chang and Daron Westly and Kartik Srinivasan and Abijith Kowligy and John E. Bowers and Scott A. Diddams and Scott B. Papp},
journal= {arXiv preprint arXiv:1710.03821},
year = {2018}
}
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