Numerical Analysis of Optical Switching Characteristics of Tapered Nonlinear Directional Coupler

Guosheng PU; Tetsuya MIZUMOTO; Yoshiyasu SATO; Kenichiro ITO; Yoshiyuki NAITO

Numerical Analysis of Optical Switching Characteristics of Tapered Nonlinear Directional Coupler

Guosheng PU, Tetsuya MIZUMOTO, Yoshiyasu SATO, Kenichiro ITO, Yoshiyuki NAITO

Full Text Views

0

Share
Cite this

Summary :

A novel nonlinear directional coupler consisting of tapered and uniform waveguides with self-focusing or self-defocusing nonlinear material is proposed to improve all-optical switching characteristics. Its switching characteristics are analyzed by using a beam propagation method based on the Galerkin's finite element technique (FE-BPM), in which nonuniform sampling spacings along the transverse coordinate are adopted. It is presented that the tapered nonlinear directional coupler shows fairly distinct 'high' and 'low' states of output power with steep transition versus input power. This property is discussed in comparison with conventional nonlinear directional couplers consisting of uniform symmetric and uniform asymmetric coupled waveguides. In addition, the effects of loss on the characteristics of tapered nonlinear directional coupler are examined.

Publication: IEICE TRANSACTIONS on Electronics Vol.E77-C No.9 pp.1489-1495

Publication Date: 1994/09/25

Publicized

Online ISSN

DOI

Type of Manuscript: PAPER

Category: Opto-Electronics

Cite this

Copy

Guosheng PU, Tetsuya MIZUMOTO, Yoshiyasu SATO, Kenichiro ITO, Yoshiyuki NAITO, "Numerical Analysis of Optical Switching Characteristics of Tapered Nonlinear Directional Coupler" in IEICE TRANSACTIONS on Electronics, vol. E77-C, no. 9, pp. 1489-1495, September 1994, doi: .
Abstract: A novel nonlinear directional coupler consisting of tapered and uniform waveguides with self-focusing or self-defocusing nonlinear material is proposed to improve all-optical switching characteristics. Its switching characteristics are analyzed by using a beam propagation method based on the Galerkin's finite element technique (FE-BPM), in which nonuniform sampling spacings along the transverse coordinate are adopted. It is presented that the tapered nonlinear directional coupler shows fairly distinct 'high' and 'low' states of output power with steep transition versus input power. This property is discussed in comparison with conventional nonlinear directional couplers consisting of uniform symmetric and uniform asymmetric coupled waveguides. In addition, the effects of loss on the characteristics of tapered nonlinear directional coupler are examined.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/e77-c_9_1489/_p

Copy

@ARTICLE{e77-c_9_1489,
author={Guosheng PU, Tetsuya MIZUMOTO, Yoshiyasu SATO, Kenichiro ITO, Yoshiyuki NAITO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Numerical Analysis of Optical Switching Characteristics of Tapered Nonlinear Directional Coupler},
year={1994},
volume={E77-C},
number={9},
pages={1489-1495},
abstract={A novel nonlinear directional coupler consisting of tapered and uniform waveguides with self-focusing or self-defocusing nonlinear material is proposed to improve all-optical switching characteristics. Its switching characteristics are analyzed by using a beam propagation method based on the Galerkin's finite element technique (FE-BPM), in which nonuniform sampling spacings along the transverse coordinate are adopted. It is presented that the tapered nonlinear directional coupler shows fairly distinct 'high' and 'low' states of output power with steep transition versus input power. This property is discussed in comparison with conventional nonlinear directional couplers consisting of uniform symmetric and uniform asymmetric coupled waveguides. In addition, the effects of loss on the characteristics of tapered nonlinear directional coupler are examined.},
keywords={},
doi={},
ISSN={},
month={September},}

Copy

TY - JOUR
TI - Numerical Analysis of Optical Switching Characteristics of Tapered Nonlinear Directional Coupler
T2 - IEICE TRANSACTIONS on Electronics
SP - 1489
EP - 1495
AU - Guosheng PU
AU - Tetsuya MIZUMOTO
AU - Yoshiyasu SATO
AU - Kenichiro ITO
AU - Yoshiyuki NAITO
PY - 1994
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E77-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 1994
AB - A novel nonlinear directional coupler consisting of tapered and uniform waveguides with self-focusing or self-defocusing nonlinear material is proposed to improve all-optical switching characteristics. Its switching characteristics are analyzed by using a beam propagation method based on the Galerkin's finite element technique (FE-BPM), in which nonuniform sampling spacings along the transverse coordinate are adopted. It is presented that the tapered nonlinear directional coupler shows fairly distinct 'high' and 'low' states of output power with steep transition versus input power. This property is discussed in comparison with conventional nonlinear directional couplers consisting of uniform symmetric and uniform asymmetric coupled waveguides. In addition, the effects of loss on the characteristics of tapered nonlinear directional coupler are examined.
ER -