Remotely Pumped Long-Reach Hybrid PON With Wavelength Reuse in RSOA-Based ONUs

• Published in: Journal of lightwave technology Vol. 29; no. 5; pp. 635 - 641
• Main Authors: Schrenk, B, Bonada, F, Lazaro, J A, Prat, J
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.03.2011; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Circuit properties; Data transmission; Electric, optical and optoelectronic circuits; Electronics; Exact sciences and technology; Fiber-to-the-home; Filtering; Integrated optics. Optical fibers and wave guides; Modulation; Optical and optoelectronic circuits; optical communication terminals; optical fiber communication; Optical fiber communications; Optical fibers; Optical network units; Optical telecommunications; Optical transmitters; Passive optical networks; Reuse; Semiconductor optical amplifiers; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Telecommunications industry; Transmission and modulation (techniques and equipments); Trees; Upstream; Wavelength division multiplexing; Wavelengths; Wireless networks; Performance evaluation; Modulated signal; Information rate; Data transmission; Downlink; Home equipment; Metropolitan area network; Semiconductor optical amplifiers; Degradation; Optical fiber network; passive optical networks; Optical fiber communication; Uplink; Damaging; High rate transmission; Fiber-to-the-home; Wide band transmission; Receiver; Full duplex transmission; Passive optical network; Frequency reuse; Information transmission; Optical filter; Access network; Intensity modulation; optical communication terminals
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2010.2101047

Symmetrical full-duplex transmission in a Passive Optical Network (PON) is demonstrated over a 100 km dual-fiber ring with 1:16 split trees. The customer premises equipment is based on a Reflective Semiconductor Optical Amplifier (RSOA), which reuses the wavelength of the intensity modulated downstream signal for upstream data transmission. A commercial RSOA was used together with optical offset filtering at the upstream receiver to operate at data rates of 5 and 10 Gb/s. Margins of >; 8 dB are left at a data rate of 5 Gb/s, proving that the utilized downstream suppression scheme and therefore the intensity modulation format for both, down- and upstream, is suitable for its application in long-reach hybrid access networks. The signal degradation along the PON and the transmitted pump that features means of remote amplification in its conjunction points between the metro ring and the local trees are discussed and further possibilities for an improvement of the transmission performance are proposed.