Paper Image

Frequency engineering in microrings through shifted gratings

Paper Authors:

Xiyuan Lu,

Yi Sun,

Ashish Chanana,

Usman A. Javid,

Marcelo Davanco,

Kartik Srinivasan


Key Details

SGMMS splits multiple modes by shifting a single-period grating, enabling multi-mode frequency engineering

Avoids complex multi-frequency grating modulation for mode splitting

Maintains high optical quality factors with large shifts

Enables optical parametric oscillation across multiple pump wavelengths

Simpler fabrication than apodized or chirped gratings

AI generated summary

Frequency engineering in microrings through shifted gratings

This paper introduces a new technique called shifted grating multiple mode splitting (SGMMS) to control the frequencies of multiple whispering gallery modes in a microring resonator. By shifting a single-period grating imprinted on the inner boundary, rotational asymmetry splits the frequencies of adjacent modes without complex multi-frequency modulation. This enables multi-mode frequency engineering for nonlinear optics like optical parametric oscillation, while maintaining high quality factors and simple fabrication.

Answers from this paper


No comments yet, be the first to start the conversation...

Sign up to comment on this paper

Sign Up