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Long-span optical FSK heterodyne single-filter detection transmission experiment using a phase-tunable DFB laser diode

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Abstract

High receiver sensitivity (−51.9 dBm) and long span (243 km) transmission expriments have been achieved with a 140 Mbit/s optical FSK heterodyne single-filter detection system, using a phase-tunable DFB laser diode as a transmitter. This has enabled direct FSK modulation without waveform distortion. Also, a 280 Mbit/s 204 km transmission experiment has been carried out successfully.

References

    1. 1)
      • K. Emura , M. Shikada , S. Fujita , I. Mito , H. Honmou , K. Minemura . Novel optical FSK heterodyne single-filter detection system using a directly modulated DFB-laser diode. Electron. Lett. , 1022 - 1023
    2. 2)
      • S. Saito , Y. Yamamoto , T. Kimura . S/N and error rate evaluation for an optical FSK-heterodyne detection system using semiconductor lasers. IEEE J. Quantum Electron. , 180 - 193
    3. 3)
      • S. Yamazaki , K. Emura , M. Shikada , M. Yamaguchi , I. Mito . Realisation of flat FM response by directly modulating a phase-tunable laser diode. Electron. Lett. , 283 - 285

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content/journals/10.1049/el_19860004
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