Transmission-line modelling of optical devices and systems

Author

Lowery, Arthur James

Author_Institution

Dept. of Electr. & Electron. Eng., Nottingham Univ., UK

fYear

1990

fDate

32916

Abstract

The basis of transmission-line modelling (TLM) is a set of nodes in space interconnected by transmission lines. The technique has now been extended to active waveguides, allowing lasers and optical amplifiers to be modelled. The key to modelling active components is the choice of scattering matrix to represent the optical processes of stimulated emission, spontaneous emission, absorption and phase-shifting. A model of an active device (laser/amplifier) is formed by connecting a set of scattering matrices in a line using transmission lines. Examples are given of a DFB laser, external cavity laser, cleaved-coupled-cavity laser and laser amplifier. Optical systems can be modelled by combining active and passive devices into one large model. Examples given include optically repeatered systems, coherent systems and multi-carrier systems

Keywords

laser cavity resonators; laser theory; optical communication equipment; semiconductor device models; semiconductor junction lasers; transmission line theory; DFB laser; absorption; active waveguides; cleaved-coupled-cavity laser; coherent systems; external cavity laser; laser amplifier; lasers; multi-carrier systems; optical amplifiers; optical devices; optical processes; optically repeatered systems; passive devices; phase-shifting; scattering matrix; spontaneous emission; stimulated emission; transmission-line modelling;

fLanguage

English

Publisher

iet

Conference_Titel

Modelling of Optoelectronic Devices, IEE Colloquium on

Conference_Location

London

Type

conf

Filename

189803