IEE Proceedings J - Optoelectronics

Issue 6 • Dec. 1993

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Displaying Results 1 - 10 of 10
  • Optimal and suboptimal detection of optical fibre digital PPM

    Publication Year: 1993, Page(s):367 - 375
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (617 KB)

    The discrete time modulation format, known as digital PPM, has been used to exchange channel bandwidth for improved signal-to-noise ratio in optical communication systems. However, the filter that optimises signal detection is complex in that it comprises a prewhitened matched filter in cascade with a proportional-derivative-delay network. In this form, the receiver would be unrealistic for a comm... View full abstract»

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  • Soliton pulse-position modulation

    Publication Year: 1993, Page(s):359 - 366
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (811 KB)

    The dynamical behaviour of infinite periodic trains of optical fibre solitons subjected to modulation of the position of each soliton is studied by analytical methods. It is concluded that multigigahertz pulse-analogue transmission over amplified links many times longer than the linear dispersion limit at high signal-to-noise ratio is achievable. The principal limitations are the nonlinear interso... View full abstract»

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  • Analogue intensity modulation schemes for optical fibre HDTV transmission

    Publication Year: 1993, Page(s):417 - 424
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (716 KB)

    The major analogue intensity modulation schemes are assessed and compared in relation to their ability to provide high-quality transmission of high-definition television (HDTV) signals on single-mode optical fibre. The practical investigation and novel implementations for subcarrier frequency modulation (SCFM) and square wave frequency modulation (SWFM) schemes are then described prior to discussi... View full abstract»

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  • Design and optimisation of a fully integrated GaAs tuned receiver preamplifier MMIC for optical SCM applications

    Publication Year: 1993, Page(s):411 - 415
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (336 KB)

    A tuned SCM optical receiver design integrated as a GaAs MMIC is reported. The receiver is intended for use in a practical system and includes an integrated noise tuning network. A critical study of tuning networks suitable for integration is undertaken, and the details of a novel design and optimisation strategy for such networks are discussed. Simulation results predict low noise and high gain p... View full abstract»

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  • Use of optical amplifiers to increase distribution capacity of optical analogue video systems

    Publication Year: 1993, Page(s):404 - 410
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (690 KB)

    Optical amplifiers can be used to increase the distribution of analogue video signals over a passive optical network. The paper analyses the gains in system loss budget that can be obtained from the positioning of optical amplifiers either as transmitter power amplifiers, line amplifiers or receiver preamplifiers in a distribution network. Both AM and FM subcarrier multiplexed (SCM) video systems ... View full abstract»

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  • Performance assessment of FM broadcast subcarrier-multiplexed optical systems

    Publication Year: 1993, Page(s):397 - 403
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (498 KB)

    The performance of frequency-modulated (FM) subcarrier-multiplexed systems is assessed using Volterra series analysis to model laser nonlinear distortion accurately. The intermodulation-power spectral density and the carrier-to-intermodulation ratio are then determined. The performance of these systems is investigated by considering all noise contributions: intermodulation and relative intensity n... View full abstract»

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  • Effect of laser diode characteristics on the performance of an SCM-OFDM direct detection system

    Publication Year: 1993, Page(s):392 - 396
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (349 KB)

    This paper describes: the application of the microwave subcarrier multiplexing technique (SCM) in an optical frequency division multiplexing (OFDM) system which employs an optical FM direct detection scheme. Direct frequency modulation of a laser diode offers the advantages of compact optical spectrum and simple driving circuit; it also permits a more effective utilisation of optical channel capac... View full abstract»

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  • RACE R2005: microwave optical duplex antenna link

    Publication Year: 1993, Page(s):385 - 391
    Cited by:  Papers (26)  |  Patents (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (505 KB)

    The paper describes the results to date of the RACE project R2005. The project addresses the optical generation and fibre delivery of mm-wave signals for future mobile radio and remote customer access connections. The authors identify potential application areas and appropriate performance targets for such fibre/mm-wave systems. The major issue identified is the need to achieve low-cost antenna un... View full abstract»

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  • Method for block synchronisation in optical PPM

    Publication Year: 1993, Page(s):377 - 384
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (705 KB)

    A method for block synchronisation in optical PPM is proposed. This method is an application of the synchronisation method for PN sequences normally used in spread spectrum communication systems. In this method, the phase of the synch signal is shifted little by little, with the synch decision process carried out on the receiving side until synchronisation is attained. The decision rule is based o... View full abstract»

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  • Pulse time modulation techniques for optical communications: a review

    Publication Year: 1993, Page(s):347 - 357
    Cited by:  Papers (12)  |  Patents (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1004 KB)

    The principal factor in realising a high-performance bandwidth-efficient fibre communication system at an acceptable cost is the choice of modulation format on the optical carrier. In this context, pulse time modulation (PTM) techniques represent an attractive alternative to purely digital or analogue methods. The PTM family is reviewed, a classification system is proposed and their potential for ... View full abstract»

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Aims & Scope

Published from 1985-1993, IEE Proceedings J contained significant and original contributions on optoelectronics, including: optical and optoelectronic materials; light sources; optical modulation and multiplexing; optical fibres, cables and connectors; optical amplifiers; photodetectors and optical receivers; photonic integrated circuits; nanophotonics and photonic crystals; optical signal processing; holography; and displays.

Full Aims & Scope