Modelling of semiconductor laser amplifier for the terahertz optical asymmetric demultiplexer

Graham Swift, Zabih Ghassemlooy, Asim Ray, Jon Travis

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A semiconductor laser amplifier (SLA) may be used as a nonlinear element in ultrafast optical asymmetric demultiplexers. For demultiplexing to take place in the optical domain it is necessary to create a switching window by placing the SLA asymmetrically in an optical loop and saturating it with a short duration control pulse. The exact size of this window, for selecting the required pulse at the output port, depends mainly on the precise location of the SLA within the loop. In the paper a finite length model of an SLA, used as a switching gate within the loop is presented and results for the carrier density, gain and phase time responses together with transmission (switching) windows are also given. The result obtained for the latter is compared with practical data.
Original languageEnglish
Pages (from-to)61
JournalIEE Proceedings - Circuits, Devices and Systems
Issue number2
Publication statusPublished - 1998


Dive into the research topics of 'Modelling of semiconductor laser amplifier for the terahertz optical asymmetric demultiplexer'. Together they form a unique fingerprint.

Cite this