On-chip nonlinear optics is a thriving research field, which creates transformative
opportunities for manipulating classical or quantum signals in small-footprint integrated
devices. Since the length scales are short, nonlinear interactions need to be enhanced by
exploiting materials with large nonlinearity in combination with high-Q resonators or slowlight
structures. This, however, often results in simultaneous enhancement of competing
Q2 nonlinear processes, which limit the efficiency and can cause signal distortion. Here, we
exploit the frequency dependence of the optical density-of-states near the edge of a photonic
bandgap to selectively enhance or inhibit nonlinear interactions on a chip. We demonstrate
this concept for one of the strongest nonlinear effects, stimulated Brillouin scattering using a
narrow-band one-dimensional photonic bandgap structure: a Bragg grating. The stimluated
Brillouin scattering enhancement enables the generation of a 15-line Brillouin frequency comb.
In the inhibition case, we achieve stimulated Brillouin scattering free operation at a power
level twice the threshold
Benjamin J. Eggleton, Moritz Merklein, Thomas F. S. Buettner, and Irina V. Kabakova, "Enhancing and inhibiting stimulated Brillouin scattering in photonic integrated circuits (Presentation Recording)," Proc. SPIE 9546, Active Photonic Materials VII, 95461Y (Presented at SPIE Nanoscience + Engineering: August 13, 2015; Published: 5 October 2015); https://doi.org/10.1117/12.2190268.4519370287001.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the proceedings. They include the speaker's narration with video of the slides and animations. Most include full-text papers. Interactive, searchable transcripts and closed captioning are now available for most presentations.
Search our growing collection of more than 29,500 conference presentations, including many plenaries and keynotes.