Results 81 to 90 of about 78,056 (109)
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OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
This paper describes the interest of operators for WDM PON and more particularly with colorless ONUs. Operator needs are presented and techniques to obtain colorless ONUs are reviewed.
F. Payoux, P. Chanclou, N. Genay
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This paper describes the interest of operators for WDM PON and more particularly with colorless ONUs. Operator needs are presented and techniques to obtain colorless ONUs are reviewed.
F. Payoux, P. Chanclou, N. Genay
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Photonic Network Communications, 2008
To reduce costs and cumbersome laser provisioning at the Optical Network Unit (ONU) user level in an access Passive Optical Network (PON), the use of a Reflective-ONU (R-ONU) is a good choice for up-data transmission. An optical carrier is sent by the Optical Line Terminal (OLT) at the Central Office, and a device at the ONU modulates the carrier with ...
Josep Segarra, Vicent Sales, Josep Prat
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To reduce costs and cumbersome laser provisioning at the Optical Network Unit (ONU) user level in an access Passive Optical Network (PON), the use of a Reflective-ONU (R-ONU) is a good choice for up-data transmission. An optical carrier is sent by the Optical Line Terminal (OLT) at the Central Office, and a device at the ONU modulates the carrier with ...
Josep Segarra, Vicent Sales, Josep Prat
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Wavelength shifting for colorless ONUs in single-fiber WDM-PONs
OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007With the purpose of reducing the crosstalk caused by Rayleigh backscattering in bidirectional centralized light systems, we propose a reflective ONU design that performs wavelength shifting by means of combined phase and SSB modulation.
Josep Prat, Mireia Omella, Victor Polo
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Protection Architecture for WDM based Access Network with Colorless ONUs
2007 Conference on Lasers and Electro-Optics - Pacific Rim, 2007By utilizing 2timesN arrayed waveguide gratings, we demonstrate a novel protection architecture for WDM-PON employing colorless optical network units (ONU). The recovery time against the feeder fiber failure was less than 8 ms and the degradation in signal quality caused by the protection process was negligible.
Kwanil Lee +3 more
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Driving Requirements for Wavelength Shifting in Colorless ONU With Dual-Arm Modulator
Journal of Lightwave Technology, 2009Dual-arm modulator configurations to perform wavelength shifting at the optical network units (ONUs) for the mitigation of Rayleigh backscattering impairment in bidirectional centralized-light passive optical networks (PONs) are proposed, with different solutions compared.
M. Omella, J.A. Lazaro, V. Polo, J. Prat
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Flexible migration and colorless ONUs for future PON based on simple line-coding
Optical Fiber Technology, 2019Abstract In the evolution to future passive optical networks (PONs), flexible migration which reuses the deployed infrastructure and colorless ONUs which eliminates wavelength dependence are two major challenges. In this paper, coexistence is applied for flexible migration and upstream remodulation is applied for colorless ONUs. Future PON downstream
Yang Lu +5 more
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10th International Conference on Optical Communications and Networks (ICOCN 2011), 2011
WDM-PON has become a promising solution to the next-generation access networks, owing to its broad bandwidth and upgradable flexibility. We experimentally demonstrated several WDM-PON architectures with broadcast capability and colorless optical networks units (ONU). (2 pages)
null Songnian Fu +2 more
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WDM-PON has become a promising solution to the next-generation access networks, owing to its broad bandwidth and upgradable flexibility. We experimentally demonstrated several WDM-PON architectures with broadcast capability and colorless optical networks units (ONU). (2 pages)
null Songnian Fu +2 more
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Wavelength Control Techniques for Tunable LD-based Colorless ONUs in WDM PON
CLEO Pacific Rim Conference, 2018A colorless light source is indispensable for low-cost and plug-and-play ONUs in WDM PON. Four kinds of wavelength control methods for tunable LD-based colorless light source used in colorless ONU are designed and experimentally measured.
Bingchang Hua +5 more
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Demonstration of 640 Gbps/160 Gbps WDM-PON system based on colorless ONUs
Journal of Optical CommunicationsAbstract The Wavelength Division Multiplexing Passive Optical Network (WDM-PON) is considered a highly promising option for next-generation optical access networks. In this work, we propose and demonstrate a WDM-PON network architecture using colorless Optical Network Units (ONUs).
Abdelfettah Chenika +2 more
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WDM PON with a single SLED seeding colorless RSOA-based OLT and ONUs
2006 European Conference on Optical Communications, 2006This paper presents the experimental results obtained on a 16 users WDM PON architecture based on wavelength-seeded R-SOAs both at OLT and ONUs operating at 1,25 Gbit/s. A single spectrum-sliced SLED generates 32 wavelengths.
F. Payoux, P. Chanclou, R. Brenot
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