Electro-optical generation and distribution of ultrawideband signals based on the gain switching technique

Haymen Shams, Aleksandra Kaszubowska-Anandarajah, Philip Perry, P. Anandarajah, Liam P. Barry

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We demonstrate and compare the generation and distribution of pulse position modulation (PPM) ultrawideband (UWB) signals, based on two different techniques using a gain-switched laser (GSL). One uses a GSL followed by two external modulators, while the second technique employs two laser diodes gain switched (GS) using a combined signal from a pattern generator and an RF signal generator. Bit-error-rate (BER) measurements and eye diagrams for UWB signals have been measured experimentally by using the different GS transmitter configurations and various fiber transmission distances. The simulation of both systems also has been carried out to verify our obtained results, which show the suitability of employing gain switching in a UWB over fiber (UWBoF) system to develop a reliable, simple, and low-cost technique for distributing the impulse-radio UWB (IR-UWB) pulses to the receiver destination.

Original languageEnglish
Article number5419373
Pages (from-to)122-130
Number of pages9
JournalJOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
Volume2
Issue number3
DOIs
Publication statusPublished - 18 Feb 2010

Keywords

  • Fiber optics communications
  • Radio frequency photonics

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