Share Email Print
cover

Optical Engineering

Large-angle transmission and mode conversion characteristics of symmetric multimode Y-junction couplers
Author(s): Augusto Garcia-Valenzuela; Murat Hayri Eskiyerly; Massood Tabib-Azar
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We investigated the optical power transmission and conversion efficiency between the lower and higher modes in a multimode symmetric Y-junction waveguide. Using the overlap integrals of the fields of the incident and transmitted guided-wave modes at the Y junction, we obtained a first-order approximation of the transmission characteristics and found that there is a possibility of transmitting a useful amount of the incident optical power into the output branching waveguides at very large branching angles. Results showed that an appropriate branching angle of the Y junction can be used to selectively transmit the waveguide modes into the output branches. We developed a very simple model using ray optics to explain the results on a more intuitive basis.

Paper Details

Date Published: 1 April 1994
PDF: 5 pages
Opt. Eng. 33(4) doi: 10.1117/12.166932
Published in: Optical Engineering Volume 33, Issue 4
Show Author Affiliations
Augusto Garcia-Valenzuela, Case Western Reserve Univ. (United States)
Murat Hayri Eskiyerly, Case Western Reserve Univ. (United States)
Massood Tabib-Azar, Case Western Reserve Univ. (United States)


© SPIE. Terms of Use
Back to Top