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Ge APD/GaAs FET/op-amp transimpedance optical receiver design having minimum noise and intersymbol interference characteristics

Ge APD/GaAs FET/op-amp transimpedance optical receiver design having minimum noise and intersymbol interference characteristics

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© The Institution of Electrical Engineers
Published

The recent commercial availability of broadband linear-phase operational amplifiers has allowed a new high-bit-rate transimpedance optical receiver design to be realised. This design allows the convenient optimisation of the receiver frequency response for minimum noise and intersymbol interference. Practical sensitivities of −49.3 dBm (70% QE) at 140 Mbit/s and 1.52 μm have been routinely achieved using packaged components and 30 μm-diameter Ge p+n APDs.

Inspec keywords: germanium; infrared detectors; elemental semiconductors; field effect transistors; avalanche photodiodes; operational amplifiers; receivers; gallium arsenide

Other keywords: minimum noise; GaAs FET; receiver frequency response; Ge avalanche photodiode; linear-phase operational amplifiers; IR detector; transimpedance optical receiver; intersymbol interference characteristics; sensitivity -49.3 dBm

Subjects: Photoelectric devices; Photodetectors

References

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      • Hooper, R.C.: `PIN-FET hybrid optical receivers for longer-wavelength optical communications systems', Sixth European conference on optical communication, September 1980, p. 222–225.
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      • K.W. Cattermole . Digital transmission by frequency-shift keying with zero intersymbol interference. Electron. Lett. , 349 - 350
    3. 3)
      • S.D. Walker , L.C. Blank . Long-wavelength transimpedance optical receiver performance enhancement using cooled germanium avalanche photodiodes. Electron. Lett. , 16 - 18
    4. 4)
      • O'Mahony, M.J.: `Signal design for optical fibre communication', Univ. of Essex colloquium on mathematical topics in telecommunications, November 1980, p. 70–79.
    5. 5)
      • J.L. Hullet , T.V. Muoi . A feed-back receive amplifier for optical transmission systems. IEEE Trans. , 1180 - 1185
    6. 6)
      • A.F. Mitchell , M.J. O'Mahony , B.A. Boxall . PIN-bipolar optical receiver using a high-frequency high-beta transistor. Electron. Lett. , 445 - 447
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