Silicon photonic modulators with a 2 × 1 Fabry-Perot cavity.

ABSTRACT: Silicon photonics modulators based on a 2 × 1 Fabry-Perot (FP) cavity, which is circulator-free, are proposed and demonstrated by introducing two asymmetric multimode-waveguide grating (AMWG) reflectors and a short straight modulation section with interleaved PN junctions. In particular, the straight modulation section in the FP cavity is broadened to be far beyond the single-mode regime, alleviating the inherent sensitivity to the variations of waveguide dimensions and thus reducing stochastic resonance-wavelength variations. The Q factor of the FP cavity is manipulated by optimally manipulating the reflection of the AMWGs, and the modulation bandwidth is enhanced to be over 40 GHz by utilizing the optical peaking enhancement effect, which happens when operating at the wavelength s

SUBMITTER: Cao H 

PROVIDER: S-EPMC11806507 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature