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Directional bypass configuration in remotely-pumped EDF/distributed Raman hybrid amplifier scheme for online OTDR monitoring

Directional bypass configuration in remotely-pumped EDF/distributed Raman hybrid amplifier scheme for online OTDR monitoring

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Published

Novel online OTDR monitoring in a remotely-pumped EDF/distributed Raman hybrid inline amplifier scheme is demonstrated. The wavelength of the OTDR pulse light is optimised for monitoring the gain of remotely-pumped EDF and the line's performance. The proposed directional bypass configuration realises online monitoring without transmission impairment.

Inspec keywords: erbium; optical fibre amplifiers; optical time-domain reflectometry

Other keywords: online OTDR monitoring; directional bypass configuration; transmission impairment; remotely-pumped EDF/distributed Raman hybrid amplifier; Er

Subjects: Fibre lasers and amplifiers; Fibre lasers and amplifiers; Optical refractometry and reflectometry; Fibre optics

References

    1. 1)
      • P. Kim , H. Yoon , J.-E. Seo , K. Jeong , K.-W. Ryoo , K.-H. Lee , N. Park . Novel in-service supervisory system using OTDR for long-haul WDM transmission link including cascaded in-line EDFAs. IEEE Photonics Technol. Lett. , 1136 - 1138
    2. 2)
    3. 3)
    4. 4)
      • Masuda, H., Kawakami, H., Kuwahara, S., Hirano, A., Sato, K., Miyamoto, Y.: `First field trial using novel two-stage remotely-pumped EDF/distributed Raman hybrid inline amplifier with 1.28-Tbit/s (32×43 Gbit/s) capacity over 528-km(6×88 km) DSF in the L-band', Post-deadline paper, OAA2003, Oraru, Japan.
    5. 5)
      • Bae, S., Lee, D., Lee, B.C., Han, K., Park, N.: `In-service monitoring of cascaded EDFA WDM links using counter-propagating OTDR pulses', OECC 1999, Beijing, China, 1, p. 436–437.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_20040184
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