English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Nonlinear optical effects including stimulated Brillouin scattering (SBS) andfour-wave mixing (FWM) play an important role in microwave photonics, opticalfrequency combs, and quantum photonics. Harnessing SBS and FWM in a low-lossand versatile integrated platform would open the path to building large-scaleBrillouin/Kerr-based photonic integrated circuits. In this letter, weinvestigate the Brillouin and Kerr properties of a low-index (n=1.513 @ 1550nm) silicon oxynitride (SiON) platform. We observed, for the first time,backward SBS in SiON waveguides with a Brillouin gain coefficient of 0.3$\rmm^{-1}W^{-1}$, which can potentially be increased to 0.95$\rm m^{-1}W^{-1}$ byjust tailoring the waveguide cross-section. We also performed FWM experimentsin SiON rings and obtained the nonlinear parameter $\gamma$, of 0.02 $\rmm^{-1}W^{-1}$. Our results point to a low-loss and low-index photonicintegrated platform that is both Brillouin and Kerr active.

Brillouin and Kerr nonlinearities of a low-index silicon oxynitride platform