Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Periodically-segmented tapered waveguide for mode-size transformation and fundamental mode excitation

Not Accessible

Your library or personal account may give you access

Abstract

Transformation of modal properties through axial tapering of the structure of a dielectric waveguide is useful in several contexts. Mode size transformation with a tapered waveguide allows independent optimization of the mode size in different portions of a waveguide to simultaneously achieve effective input and output coupling and for efficient performance of active or electrooptic devices. An adiabatic taper from a single to a multimode waveguide also allows robust coupling into the fundamental mode of a multimode waveguide, important in certain types of nonlinear waveguide devices, such as difference frequency generators, that involve interactions between modes at widely disparate wavelengths. Periodically-segmented waveguides (PSWs), investigated both theoretically1,2,3 and experimentally4,5 in the literature, allow independent control over vertical and lateral confinement, and thus can be used to tailor the size and shape of waveguide modes. In this paper we report tapers in annealed-proton-exchanged (APE) waveguides in LiNbO3 through the use of segmented waveguides with axially varying duty cycle.

© 1996 Optical Society of America

PDF Article
More Like This
Difference frequency mixing in LiNbO3 waveguides using an adiabatically tapered periodically-segmented coupling region

Mark A. Arbore, Ming-Hsien Chou, and Martin M. Fejer
JTuE2 Conference on Lasers and Electro-Optics (CLEO:S&I) 1996

Mode engineering in periodically segmented waveguides

D. Ortega, J M Aldariz, and J. S. Aitchison
IWA6 Integrated Photonics Research (IPR) 1998

Engineering Mode Size in Laser Inscribed Waveguides via Periodic Segmentation

James A. Grieve, Tan Bo Xue, and Alexander Ling
JTu2A.6 Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials (BGPP) 2018

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved