Equivalent circuit model for multi-electrode semiconductor optical amplifiers and analysis of inline photodetection in bidirectional transmissions

Author

Sharaiha, A. ; Guegan, M.

Author_Institution

Lab. RESO, Ecole Nat. Superieure d´´Ingenieurs de Brest, France

Volume

18

Issue

5

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

700

Lastpage

707

Abstract

A rate equation model for static and dynamic behavior for bidirectional transmission in a multisection semiconductor optical amplifier (SOA) is presented. The rate equations for each section have been implemented on an electrical simulator. Here, we have used the model to study the inline photodetection in presence of bidirectional transmission. Small signal photodetection response in presence of co- and contrapropagating signals is given. The photodetection crosstalk expression in bidirectional transmission has also been reported. Simultaneous bidirectional photodetection experiments using a three-electrode SOA show good agreement between measured crosstalk and simulated results obtained by harmonic balance method. A photodetection response nearly free of crosstalk has been obtained for certain operating conditions due to the cross gain modulation between contrapropagating signals.

Keywords

electro-optical modulation; electrodes; equivalent circuits; optical crosstalk; optical transmitters; photodetectors; semiconductor device models; semiconductor optical amplifiers; bidirectional transmission; bidirectional transmissions; contrapropagating signals; copropagating signals; cross gain modulation; dynamic behavior; electrical simulator; equivalent circuit model; inline photodetection; multi-electrode semiconductor optical amplifiers; multisection semiconductor optical amplifier; operating conditions; photodetection crosstalk expression; rate equation model; rate equations; simultaneous bidirectional photodetection experiments; small signal photodetection response; static behavior; Circuit simulation; Equations; Equivalent circuits; Optical amplifiers; Optical crosstalk; Optical modulation; Optical wavelength conversion; Semiconductor optical amplifiers; Spontaneous emission; Stimulated emission;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.842086

Filename

842086