Rule for Mode Coupling Efficiency in Optical Waveguide Crossing
-
Published:2022-11-14
Issue:
Volume:
Page:
-
ISSN:1943-5711
-
Container-title:The Applied Computational Electromagnetics Society Journal (ACES)
-
language:
-
Short-container-title:ACES Journal
Author:
Bentouhami Billel,Kaddour Zaia D.
Abstract
Crossing an optical waveguide requires a beam coupling from free space to waveguide at the entrance plane and another beam coupling from waveguide to free space at the exit plane of the waveguide. The aim of this paper is to provide a simple rule expressing the relationship between the involved numbers of free and guided modes that efficiently rebuild the field at each end of the waveguide. Using a numerical program built on Maple software, the rule was determined to be effective independently of the ratio between the beam spot size and the waveguide radius.
Publisher
River Publishers
Subject
Electrical and Electronic Engineering,Astronomy and Astrophysics