Numerical simulation on free-carrier induced by two photon absorption in all optical silicon modulators

Zhenhua Shao; Jun Cao; Hongzhi Chen; Yao Huang

doi:10.1117/12.3006599

21 December 2023 Numerical simulation on free-carrier induced by two photon absorption in all optical silicon modulators

Zhenhua Shao, Jun Cao, Hongzhi Chen, Yao Huang

Author Affiliations +

Proceedings Volume 12966, AOPC 2023: AI in Optics and Photonics ; 1296618 (2023) https://doi.org/10.1117/12.3006599
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

We propose and analyze a novel compact modulator on a silicon-on-insulator (SOI) waveguide with the modulation mechanisms of free-carrier plasma dispersion effect. The free carriers are produced by two-photon absorption (TPA) effect, and to understand the change process of free carriers in the silicon, we carried out theoretical simulation and calculation on it, which based on the coupling wave propagation equation and boundary conditions. Free carriers density of 2.5×10¹⁷/cm3 could be obtained under pump power of 50 mW and the refractive index change Δn of 9.24×10^-4 are achieved. The result indicates that TPA-induced free carriers could be effectively change the effective refractive index of the silicon and further realize the modulation application in silicon modulators.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhenhua Shao, Jun Cao, Hongzhi Chen, and Yao Huang "Numerical simulation on free-carrier induced by two photon absorption in all optical silicon modulators", Proc. SPIE 12966, AOPC 2023: AI in Optics and Photonics , 1296618 (21 December 2023); https://doi.org/10.1117/12.3006599

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available