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Single-sideband modulation in photonic time-stretch analogue-to-digital conversion

Single-sideband modulation in photonic time-stretch analogue-to-digital conversion

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  • Author(s): J.M. Fuster 1 ; D. Novak 2 ; A. Nirmalathas 2 ; J. Marti 1
    • View affiliations
    • Affiliations: 1: ETSI Telecomunicacion, ITACA Research Institute, Fibre Radio Group, Universidad Politecnica de Valencia, Valencia, Spain
      2: Department of Electrical and Electronic Engineering, Photonics Research Laboratory, Australian Photonics Cooperative Research Centre, The University of Melbourne, Parkville, Australia
  • Source: Volume 37, Issue 1, 4 January 2001, p. 67 – 68
    DOI:  10.1049/el:20010046 , Print ISSN 0013-5194, Online ISSN 1350-911X
© IEE
Published

The bandwidth limitation of a high-frequency analogue-to-digital (A/D) conversion technique based on photonic time-stretch is investigated. Single-sideband modulation of the electrical input signal is proposed to avoid this limitation. This technique is promising for A/D conversion of ultrafast signals (> 100 Gflops).

Inspec keywords: high-speed optical techniques; optical fibres; electro-optical modulation; laser beam applications; chirp modulation; analogue-digital conversion

Other keywords: ultrafast signals; HF analogue-to-digital conversion technique; bandwidth limitation; single-sideband modulation; high-frequency A/D conversion technique; analogue/digital conversion; SSB modulation; electrical input signal; photonic time-stretch ADC

Subjects: Fibre optics; Modulation and coding methods; Electro-optical devices; A/D and D/A convertors; Laser applications

References

    1. 1)
      • J. Marti , J.M. Fuster , R.I. Laming . Experimental reduction of chromaticdispersion effects in lightwave microwave/millimetre-wave transmissions employing taperedlinearly chirped fibre gratings. Electron. Lett. , 1170 - 1171
    2. 2)
      • F. Coppinger , A.S. Bhushan , B. Jalali . Photonic time stretch and its applicationto analogue-to-digital conversion. IEEE Trans. Microw. Theory Tech. , 1309 - 1314
    3. 3)
      • G.H. Smith , D. Novak , C. Lim . Technique for optical SSB generation to overcome dispersion penaltiesin fibre-radio systems. Electron. Lett. , 74 - 75
    4. 4)
      • J.L. Corral , J. Marti . Single sideband optical modulation on chirped fibre gratingbased delay lines for optically controlled phased array antennas. Electron. Lett. , 761 - 762
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