CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 13499 > Article
Paper
13 December 2024 Simulation design and experimental study of low-loss couplers for integrated optical gyroscopes based on Si3N4 waveguides
Jiawen Liu, Yifan Zhao, Chengcheng Shi, Shiqi Kang, Ming Jia, He Yang
Author Affiliations +
Proceedings Volume 13499, AOPC 2024: Optical Devices and Integration; 1349910 (2024) https://doi.org/10.1117/12.3048283
Event: Applied Optics and Photonics China 2024 (AOPC2024), 2024, Beijing, China
Abstract
Si3N4 waveguides have been posited as vital photonic devices for next-gen photonic integrated circuits (PICs) due to their excellent properties of broad transparency, low loss, thermal stability, and Complementary Metal Oxide Semiconductor (CMOS) compatibility. In this work, we focused on the simulation design and experimental studies of Si3N4 waveguides based splitters and couplers at 850nm, ensuring the optimized single-mode operation, minimizing dispersion, and highlyefficient transmission of light. A major challenge, inefficient fiber-waveguide coupling, was addressed by developing a special optimized taper waveguide, achieving a theoretical coupling efficiency boost from 11.21% to 99.7%. By meticulously tuning the width and height of the multimode interference (MMI) region to 18.26μm and 4μm, respectively, and positioning the output single-mode waveguides at an optimized distance of 2.05μm, we achieved a remarkable singl-eend transmission of over 49.8%, ensuring balanced and efficient signal distribution crucial for complex networks. The coupling loss of fiber to waveguide was calculated to be as low as 0.013dB compared to that of 9.5dB, and the insertion loss of MMI was calculated to be as low as 0.09dB. In summary, our work realized Si3N4-based waveguides for the enhanced coupling efficiency and optimized MMI splitters with excellent performance improvements to form the backbone of more efficient, compact, and high-performance photonic systems, such as the integrated optical gyroscope, on-chip optical sensors, etc.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Jiawen Liu, Yifan Zhao, Chengcheng Shi, Shiqi Kang, Ming Jia, and He Yang "Simulation design and experimental study of low-loss couplers for integrated optical gyroscopes based on Si3N4 waveguides", Proc. SPIE 13499, AOPC 2024: Optical Devices and Integration, 1349910 (13 December 2024); https://doi.org/10.1117/12.3048283
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
 6 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Waveguides
Silicon
Optical gratings
Integrated optics
Optical transmission
Brain-machine interfaces
Diffraction gratings
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top