Adiabatic tapers based on photonic inverse design

N. Dhingra; Y. H. Chen; V. Shenoy

doi:10.1117/12.3001333

11 March 2024 Adiabatic tapers based on photonic inverse design

N. Dhingra, Y. H. Chen, V. Shenoy

Proceedings Volume 12880, Physics and Simulation of Optoelectronic Devices XXXII; 128800L (2024) https://doi.org/10.1117/12.3001333
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Adiabatic mode evolution is an important concept in photonic devices and is utilized in several applications including spot size conversion, mode coupling between the two waveguides, and broadband power splitters/couplers. In such devices, the linear adiabatic tapers are not always the best choice in terms of the device footprint and hence the taper profile needs to be optimized to provide small footprint while ensuring adiabatic mode evolution. In many instances, the best taper profile can be quite complex, and a parametric design might require a lot of parameters to accurately define the taper profile. In such cases, the traditional optimization using parameter sweep can be challenging. Several techniques such as Fast Quasi Adiabatic (FAQUAD) dynamics and constant loss approach have been proposed in the literature for such optimization. We implement these techniques and conduct a brief comparison using two different integrated photonic components. We also briefly discuss the challenges associated with relying solely on the optimization algorithms (inverse design) without utilizing constraints associated with these techniques.

Conference Presentation

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

Citation Download Citation

N. Dhingra, Y. H. Chen, and V. Shenoy "Adiabatic tapers based on photonic inverse design", Proc. SPIE 12880, Physics and Simulation of Optoelectronic Devices XXXII, 128800L (11 March 2024); https://doi.org/10.1117/12.3001333

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