First demonstration of a WDM-PON system using full C-band tunable SFP+ transceiver modules [invited]

Jiannan Zhu, Stephan Pachnicke, Mirko Lawin, Stephen Mayne, Adrian Wonfor, Richard V. Penty, Rosie Cush, Richard Turner, Paul Firth, Mike Wale, Ian H. White, Jörg Peter Elbers

Research output: Contribution to journalArticlepeer-review

15 Citations (SciVal)


In this paper, a wavelength-division-multiplexing passive optical network (WDM-PON) system using small form-factor pluggable plus (SFP+) packaged full C-band tunable transceivers is demonstrated for the first time to our knowledge. Within the transceivers, a novel digital-supermode distributed Bragg reflector (DS-DBR) laser with a monolithically integrated Mach-Zehnder modulator is employed as the transmitter. A generic current control algorithm is used to drive the DS-DBR laser, which employs a laser current training sequence ensuring successful operation without the need for individual laser characterization. A pilot-tone-based feedback control loop is implemented using embedded hardware, which is able to lock the output wavelengths from three identical optical network units with less than ±3 GHz deviation from their assigned channels. Error-free transmission is achieved at a 10 GbE data rate. With the feedback control loop running continuously, the system shows a sensitivity of -23 dBm for a bit error rate of 10 -12 .

Original languageEnglish
Article number7023470
Pages (from-to)A28-A36
Number of pages9
JournalJournal of Optical Communications and Networking
Issue number1
Early online date3 Oct 2014
Publication statusPublished - 1 Jan 2015


  • Fiber optics communications
  • Laser tuning
  • Passive optical networks
  • Wavelength division multiplexing

ASJC Scopus subject areas

  • Computer Networks and Communications


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