First Commercial Service of a Colorless Gigabit WDM/TDM Hybrid PON System

Lee, Han-Hyub; Cho, Seung-Hyun; Lee, Jie-Hyun; Jung, Eui-Suk; Yu, Jea-Hoon; Lee, Sang-Soo; Lee, Sang-Hyeun; Koh, Jason S.; Sung, Back-Heung; Kang, Suk-Jin; Kim, Jinhee; Jeong, Ki-Tae

doi:10.1364/nfoec.2009.pdpd9

Cited by 13 publications

(3 citation statements)

References 3 publications

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“…However, the most critical issues for practical deployment are the network complexity and its subsequent cost. To overcome this problem, several recent solutions [2,3] have been proposed to implement WDM-PON using low-cost transmitters. These solutions are typically based on spectral slicing of the light output from a broadband incoherent source such as a supercontinuum or an amplified spontaneous emission (ASE) combined with injection-locked Fabry-Pérot (IL-FP) laser diodes [2] or a reflective semiconductor optical amplifier (RSOA) [3].…”

Section: Introductionmentioning

confidence: 99%

“…To overcome this problem, several recent solutions [2, 3] have been proposed to implement WDM-PON using low-cost transmitters. These solutions are typically based on spectral slicing of the light output from a broadband incoherent source such as a supercontinuum or an amplified spontaneous emission (ASE) combined with injection-locked Fabry-Pérot (IL-FP) laser diodes [2] or a reflective semiconductor optical amplifier (RSOA) [3]. However, the performance of such solutions is limited to 1.25 Gbit/s owing to the high intensity noise of the spectrum-sliced source (around 2105 dBc/Hz) even if the bandwidths of the IL-FP laser diodes and RSOA are higher.…”

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confidence: 99%

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30 Gbit/s downstream capacity of cost-effective colourless WDM-PON based on injection-locked Fabry-Pérot lasers

et al. 2009

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A 100 GHz spaced comb, generated by a quantum dash passively modelocked laser, is used as a low-noise coherent seeding source for the colourless wavelength-division-multiplexed passive optical network based on injection-locked Fabry-Pérot laser diodes. Errorfree downstream transmission over 25 km singlemode fibre of 12 WDM channels at 2.5 Gbit/s with 100 GHz channel spacing is experimentally demonstrated.Introduction: The wavelength-division-multiplexed passive optical network (WDM-PON) has been demonstrated as one of the most promising candidates for the future broadband access network [1]. However, the most critical issues for practical deployment are the network complexity and its subsequent cost. To overcome this problem, several recent solutions [2, 3] have been proposed to implement WDM-PON using low-cost transmitters. These solutions are typically based on spectral slicing of the light output from a broadband incoherent source such as a supercontinuum or an amplified spontaneous emission (ASE) combined with injection-locked Fabry-Pérot (IL-FP) laser diodes [2] or a reflective semiconductor optical amplifier (RSOA) [3]. However, the performance of such solutions is limited to 1.25 Gbit/s owing to the high intensity noise of the spectrum-sliced source (around 2105 dBc/Hz) even if the bandwidths of the IL-FP laser diodes and RSOA are higher.To mitigate this limitation, we propose in this Letter a novel colourless transmitter solution for WDM-PON. A Fabry-Pérot laser diode (FP LD), which is directly modulated at 2.5 Gbit/s, is injectionlocked by a single quantum dash passively modelocked laser (QD-MLL). The FP LD is designed to be polarisation-insensitive when it is injection-locked, while the QD-MLL acts as a 100 GHz comb generator. The feasibility of such a solution for WDM-PON downstream transmission is assessed for 12 channels over 25 km singlemode fibre (SMF) in the C-band.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

30 Gbit/s downstream capacity of cost-effective colourless WDM-PON based on injection-locked Fabry-Pérot lasers

et al. 2009

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“…Although commercial deployment of optical access will most probably focus on reflective modulators [44], first commercial demonstrations of WDM-PONs were indeed relying on FP-LDs [45]. However, problems still arise when the comb of the FP-LD has to be tuned to the incident optical signal, since the tuning range of these devices is limited.…”

Section: Customer Premises Equipment and Key Componentsmentioning

confidence: 99%

Characterization and design of multifunction photonic devices for next-generation fiber-to-the-home optical network units

Schrenk

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El estudio e investigación en el campo de las redes ópticas de acceso han sido fomentadas en años recientes debido a la continua migración de Servicios multimedia que son ofrecidos a través de Internet. Aunque los dispositivos utilizados para implementar Fiber-to-the-Home (fibra a casa), que reemplazan las soluciones tradicionales basadas en cable de cobre, están basadas aún en micro-óptica, se puede prever una evolución hacia integración fotónica. Todavía queda la pregunta acerca de los diseños necesarios para este paso importante de integración, que debe ser optimizado en términos del desempeño de transmisión, eficiencia energética y costo con el fin de lograr todos los requerimientos de las redes fotónicas de siguiente generación. Como elemento más crítico en las redes de acceso ópticas es el equipo en los clientes, este trabajo se centra en éste. Los temes cubiertos abarcan una gama amplia e incluyen: el reciclado de longitudes de onda para transmisión de datos en full-dúplex a través de una sola frecuencia óptica; la generación de formatos de modulación avanzados con moduladores semiconductores de bajo costo y factor pequeño de integración; soporte de amplificación óptica a través de técnicas de sembrado y el soporte de funcionalidades de capes superiores en la capa física. Después de la prueba principal de las técnicas propuestas, se resaltan los beneficios, impedimentos y caminos de reemplazo hacia sistemas fotónicos multifuncionales a través de casos de estudio. Por su parte, los diseños más representativos se profundizan más sobre todo por su posibilidad de ser integrados fotónicamente. Optical access technology has experienced a boost in the last years, thanks to the continuously migrating multimedia services that are offered over the internet. Though the devices used for deploying Fiber-to-the-Home instead of traditional copper-based solutions are still based on micro-optics, an evolution towards photonic integration can be foreseen. What remains is the question about the exact designs for this important step of integration, which should be optimized in terms of transmission performance, energy efficiency and cost to address all requirements of next-generation photonic networks. As the most critical element in optical access, the customer premises equipment is in primary focus of this discussion. The covered topics span over a wide range and include wavelength recycling for full-duplex data transmission on a single optical frequency, the generation of advanced modulation formats with low-cost semiconductor modulators with small form factor, support for optical amplification by means of seeding techniques and the support of higher layer functionality at the physical layer. Next to the principal proof of the proposed techniques, the benefits, impediments and upgrade paths towards multifunctional photonic systems are highlighted in different case studies, while the most representative designs are further discussed in their capability of being photonically integrated.

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