Dielectric optical waveguide coupling analysis using two-dimensional finite difference in time-domain and frequency-domain simulations

Lee L. Liou; Antonio Crespo; Paul Sotirelis

doi:10.1117/12.470574

12 June 2002 Dielectric optical waveguide coupling analysis using two-dimensional finite difference in time-domain and frequency-domain simulations

Lee L. Liou, Antonio Crespo, Paul Sotirelis

Author Affiliations +

Proceedings Volume 4646, Physics and Simulation of Optoelectronic Devices X; (2002) https://doi.org/10.1117/12.470574
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

The coupling length of the dielectric optical waveguide is inversely proportional to the difference of the even- and odd-mode propagation constants. It is important to accurately determine these values, since their difference is in a fraction of 10^-3. To resolve this small difference, simulation using 2-dimensional finite-difference in time-domain method requires long computation time. Moreover, the time-domain method is not efficient to determine the modal functions. Frequency-domain method is cast as an eigenvalue solver, and the modal functions can be directly solved with the corresponding propagation constant. However, this method requires an initial knowledge of the eigenvalue to efficiently determine the modes of interest. This initial knowledge can be provided from the time-domain method. In this study, we conduct analysis of an AlGaN/GaN dielectric optical waveguide coupler combining time- and frequency-domain methods. Taking advantage from both methods, the propagation constants and the modal functions were obtained with a reasonable computation time.

Citation Download Citation

Lee L. Liou, Antonio Crespo, and Paul Sotirelis "Dielectric optical waveguide coupling analysis using two-dimensional finite difference in time-domain and frequency-domain simulations", Proc. SPIE 4646, Physics and Simulation of Optoelectronic Devices X, (12 June 2002); https://doi.org/10.1117/12.470574

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
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Waveguides

Wave propagation

Dielectrics

Finite-difference time-domain method

Radio propagation

Magnetism

Refraction

Show All Keywords

Keywords/Phrases

Search In:

Publication Years