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Time-stretched analogue-to-digital conversion

Time-stretched analogue-to-digital conversion

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Published

A new concept for analogue-to-digital conversion is proposed and demonstrated. The analogue signal is stretched in time prior to sampling and quantisation. Time stretching increases the input bandwidth and sampling rate of the ADC and is best implemented using optoelectronic techniques.

Inspec keywords: laser beam applications; signal sampling; electro-optical modulation; analogue-digital conversion; optical information processing

Other keywords: optoelectronic techniques; sampling rate enhancement; analogue-to-digital conversion; time-stretched ADC; input bandwidth enhancement

Subjects: A/D and D/A convertors; Laser applications; A/D and D/A convertors; Electro-optical devices

References

    1. 1)
      • W.C. Black , D.A. Hodges . Time interleaved converter arrays. IEEE J. Solid State Circuits , 6 , 1022 - 1029
    2. 2)
      • C.V. Bennet , E.P. Scott , B.H. Kolner . Temporal magnification and reversal of 100 Gb/s optical data with anup-conversion time microscope. Appl. Phys. Lett. , 20 , 2513 - 2515
    3. 3)
      • M.I. Skolnik . (2001) Introduction to radar systems.
    4. 4)
      • W.J. Caputi . Stretch: a time-transformation technique. IEEE Trans. Aerospace Electron. Syst. , 269 - 278
    5. 5)
      • F. Coppinger , A.S. Bhushan , B. Jalali . Time magnification of electrical signalusing chirped optical pulses. Electron. Lett. , 4 , 399 - 400
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