Design and simulation of a waveguide-integrated GeSi modulator based on the Franz-Keldysh effect with a high-efficiency butt-coupling structure

Guoqi Zhou; Bin Li; Bo Tang; Wangwang Yin; Peng Zhang; Ruonan Liu; Yan Yang; Kai Huang; Gang Yang; Zaili Yang; Zhihua Li

doi:10.1117/12.3045500

13 December 2024 Design and simulation of a waveguide-integrated GeSi modulator based on the Franz-Keldysh effect with a high-efficiency butt-coupling structure

Guoqi Zhou, Bin Li, Bo Tang, Wangwang Yin, Peng Zhang, Ruonan Liu, Yan Yang, Kai Huang, Gang Yang, Zaili Yang, Zhihua Li

Author Affiliations +

Proceedings Volume 13499, AOPC 2024: Optical Devices and Integration; 1349906 (2024) https://doi.org/10.1117/12.3045500
Event: Applied Optics and Photonics China 2024 (AOPC2024), 2024, Beijing, China

Abstract

We present a waveguide-integrated electro-absorption modulator utilizing GeSi alloy technology with a butt-coupling configuration. By introducing a poly-Si taper, the coupling efficiency of the modulator is maintained above 95% within the 1500-1600 nm wavelength range. The demonstrated device achieves a 3dB bandwidth of up to 197 GHz at the wavelength of 1550 nm, an extinction ratio of 5.32 dB, and an insertion loss of 2.68 dB. Additionally, the modulator exhibits excellent detection performance with a responsivity of 0.986 A/W.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Guoqi Zhou, Bin Li, Bo Tang, Wangwang Yin, Peng Zhang, Ruonan Liu, Yan Yang, Kai Huang, Gang Yang, Zaili Yang, and Zhihua Li "Design and simulation of a waveguide-integrated GeSi modulator based on the Franz-Keldysh effect with a high-efficiency butt-coupling structure", Proc. SPIE 13499, AOPC 2024: Optical Devices and Integration, 1349906 (13 December 2024); https://doi.org/10.1117/12.3045500

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Silicon

Modulators

Waveguides

Absorption

Electric fields

Modulation

Germanium

Show All Keywords

Keywords/Phrases

Search In:

Publication Years