WDM-PON with colorless ONUs

Payoux, F.; Chanclou, Philippe; Genay, N.

doi:10.1109/ofc.2007.4348794

Cited by 26 publications

(7 citation statements)

References 4 publications

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“…Some of the common component that could be used for the couourless ONU are, tunable lasers, injection locked Fabry-Pérot lasers and RSOA for 1.25Gbps of speed while for a higher speed of 10Gbps is Electro-absorption Modulator (EAM) [4].…”

Section: Introductionmentioning

confidence: 99%

Upstream characteristics of tunable WDM-PON system for deployment in Malaysia

Manaf¹,

Ahmad²,

Kadir³

et al. 2012

2012 IEEE 3rd International Conference on Photonics

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The evolution of access network technology utilizing Passive Optical Network (PON) has provided a means for high speed broadband to be effectively implemented in Malaysia through FTTH technology. As the bandwidth demand and number of subscribers is increasing, WDM-PON is considered the best candidate for future deployment. On the same note, this paper presents the development of tunable 16 channels WDM-PON system, focusing on the colourless ONU's uplink signal transmission. This system is utilizing a software controlled tunable transceiver in both OLT and ONU, thus would enable colourless mode of operation. A 16 channels wavelength plan has also been defined for the upstream and downstream communication. Besides that, an athermal AWG is introduced in the network for wavelengths multi/demultiplexing operation. An experimental setup has been made to simulate an optical modulated upstream signal from the colourless ONU to the OLT. The resulting upstream signals will be analyzed and characterized based on the availability, distance, optical received power as well as its quality on BER and the eye diagram. The results show that the ability of the developed tunable WDM-PON system to operate at 2.5Gbps for the upstream transmission and should be able to support the future plan of WDM-PON deployment in Malaysia.

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Section: Introductionmentioning

confidence: 99%

Upstream characteristics of tunable WDM-PON system for deployment in Malaysia

Manaf¹,

Ahmad²,

Kadir³

et al. 2012

2012 IEEE 3rd International Conference on Photonics

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“…A colorless optical network unit (ONU) is desirable for the WDM-PON. 4 Different methods, such as using tunable light source, 5 spectral-sliced light source, 6 amplified spontaneous emission-injected Fabry-Pérot laser diodes, 7 and remodulated light sources 8,9 have been proposed for the colorless ONU. Recently, we proposed and demonstrated the use of a distributed optical carrier from the optical line terminal (OLT) and reflective semiconductor optical amplifier (RSOA) as the colorless ONU.…”

Section: Introductionmentioning

confidence: 99%

Compensation of power drops in reflective semiconductor optical amplifier–based passive optical network with upstream data rate adjustment

et al. 2011

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In a wavelength division multiplexed-passive optical network (WDM-PON), different fiber lengths and optical components would introduce different power budgets to different optical networking units (ONUs). Besides, the power decay of the distributed optical carrier from the optical line terminal owing to aging of the optical transmitter could also reduce the injected power into the ONU. In this work, we propose and demonstrate a carrier distributed WDM-PON using a reflective semiconductor optical amplifier-based ONU that can adjust its upstream data rate to accommodate different injected optical powers. The WDM-PON is evaluated at standard-reach (25 km) and long-reach (100 km). Bit-error rate measurements at different injected optical powers and transmission lengths show that by adjusting the upstream data rate of the system (622 Mb/s, 1.25 and 2.5 Gb/s), error-free (<10 − 9 ) operation can still be achieved when the power budget drops. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

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“…To obtain a low-cost WDM-PON requires colorless optical network units (ONU), and different types of colorless light sources are applied [2]. Reflective semiconductor optical amplifier (RSOA) is one of the attractive colorless light sources because it doesn't need any extra broadband light sources at the central office (CO) and can provide enough power budgets for the upstream signals due to its gain property [3].…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a data remodulation scheme with downstream ASK-DPSK signals and upstream OOK signal using RSOA for WDM-PONs

Zeng

Liu

2010

Optical Transmission Systems, Switching, and Subsystems VIII

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A novel data remodulation scheme with downstream Amplitude Shift Keying (ASK)-Differential Phase Shift Keying (DPSK) signals and on-off keying (OOK) upstream signal using reflective semiconductor optical amplifier (RSOA) for wavelength-division multiplexing (WDM)-passive optical networks (PON) is proposed in the letter. An experiment on 10-Gb/s DPSK with 1.25-Gb/s ASK downstream signals generation and 1.25-Gb/s upstream signal remodulation is demonstrated, and experimental results show error-free operation after ~25-km transmission can be achieved without dispersion compensation.

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WDM-PON with colorless ONUs

Abstract: 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.

Cited by 26 publications

References 4 publications

Upstream characteristics of tunable WDM-PON system for deployment in Malaysia

Upstream characteristics of tunable WDM-PON system for deployment in Malaysia

Compensation of power drops in reflective semiconductor optical amplifier–based passive optical network with upstream data rate adjustment

Demonstration of a data remodulation scheme with downstream ASK-DPSK signals and upstream OOK signal using RSOA for WDM-PONs

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