Compact Brillouin devices through hybrid integration on silicon

By B. Morrison, A. Casas-Bedoya, Guanghui Ren, K. Vu, Yang Liu, A. Zarifi, Thach G. Nguyen, Duk-Yong Choi, David A. I. Marpaung, S. Madden and 2 more. 2017

175 citations recorded by the source corpus.

A range of unique capabilities in optical and microwave signal processing and generation have been demonstrated using stimulated Brillouin scattering (SBS). The need to harness SBS in mass-manufacturable integrated circuits has led to a focus on silicon-based material platforms. Remarkable progress in silicon-based Brillouin waveguides has been made, but results have been hindered by nonlinear losses present at telecommunications wavelengths. Here, we report on a new approach to surpass this issue through the integration of a high Brillouin gain material, As2S3, onto a silicon-based chip. We fabricated a compact spiral device within a silicon circuit, achieving an order-of-magnitude improvement in Brillouin amplification. To establish the flexibility of this approach, we fabricated a ring resonator with free spectral range precisely matched to the Brillouin shift, enabling the first demonstration, to our knowledge, of Brillouin lasing in a planar integrated circuit. Combining active photonic components with the SBS devices shown here will enable the creation of compact, mass-manufacturable optical circuits with enhanced functionalities.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/5b54f571b8c07f9d0b64ec2b76b202466843cbae

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

  1. Lionel C. Kimerling
  2. Anuradha Murthy Agarwal
  3. Juejun Hu

In Electrical and Electronic Engineering

  1. Lionel C. Kimerling
  2. Anuradha Murthy Agarwal
  3. Juejun Hu

Citations in the corpus