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Signal Amplification

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Quantum-Dot-Based Semiconductor Optical Amplifiers for O-Band Optical Communication

Part of the book series: Springer Theses ((Springer Theses))

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Abstract

The chapter presents investigations of the input-power dynamic range (IPDR) of quantum-dot semiconductor optical amplifiers (QD SOAs) used to amplify amplitude and/or phase-modulated signals in single and multi-channel configuration with per channel symbol rates of up to 80 GBd per wavelength channel. Depending on the modulation format, number of wavelength channels, gain characteristics and signal quality definitions, record IPDRs from 16 up to larger than 37 dB are demonstrated.

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Notes

  1. 1.

    Taking into account the O-band SMF loss of 0.35 dB/km discussed in Chap. 1.

  2. 2.

    Parts of this chapter have been previously published in [1–4]. 1: Schmidt-Langhorst 2010; 2: Schmeckebier 2011; 3: Meuer 2011; 4: Zeghuzi 2015b.

  3. 3.

    This modulator is designed for the C-band but also operates in the O-band. But the device shows an increased wavelength dependent performance within the O-band in terms of e.g. extinction ratio. Due to a lack of commercial O-band DD-MZMs, this device is used.

  4. 4.

    Due to lack of commercial available OMAs operating in the O-band, the world’s first O-band OMA was developed and assembled at the Technische Universität Berlin by Dejan Arsenijević and Holger Schmeckebier and the support of Kylia and Keysight Technologies.

  5. 5.

    “Keysight N4391A Software Optical Modulation Analyzer” version 4.1.11.17934 ©Keysight Technologies.

  6. 6.

    Detailed information on this setup part can be found in the Appendix B.

  7. 7.

    The OMA allows a direct BER evaluation down to about 10\(^{-5}\) limited by the length of the recorded traces of the OMA software. Lower BER values can be only estimated from the EVM.

  8. 8.

    Detailed information on this setup part can be found in the Appendix B.

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Authors and Affiliations

  1. Institute of Solid State Physics, Technical University of Berlin, Berlin, Germany

    Holger Schmeckebier

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  1. Holger Schmeckebier
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Correspondence to Holger Schmeckebier .

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Schmeckebier, H. (2017). Signal Amplification. In: Quantum-Dot-Based Semiconductor Optical Amplifiers for O-Band Optical Communication. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-44275-4_6

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