Radio over fiber access network architecture employing reflective semiconductor optical amplifiers

Medeiros, Maria C. R.; Avó, R.; Laurencio, P.; Correia, N.; Barradas, Alvaro L.; Silva, Henrique; Darwazeh, Izzat; Mitchell, John E.; Monteiro, Paulo P.

doi:10.1109/ictonmw.2007.4446986

Cited by 16 publications

(6 citation statements)

References 6 publications

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“…The RSOA can be used as an uplink colourless transmitter and modulator in the ONU, thanks to its properties of optical gain, integration capability and wide optical bandwidth [35][36][37][38]. Thus, the deployment of erbium doped fibre amplifiers in the system can be avoided, thanks to the additional gain provided by the RSOA [39].…”

Section: Wavelength Division Multiplexed (Wdm) Ponsmentioning

confidence: 99%

Technologies for future wavelength division multiplexing passive optical networks

El-Nahal

Hanik

2020

IET Optoelectronics

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Section: Wavelength Division Multiplexed (Wdm) Ponsmentioning

confidence: 99%

Technologies for future wavelength division multiplexing passive optical networks

El-Nahal

Hanik

2020

IET Optoelectronics

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“…Another application of RoF technology is to extend the Passive optical network (PON), functioning as a bridge, increasing the coverage of the PON in areas of difficult access or can provide a fast solution when an already existing fiber connection fails. In particular, the 60 GHz band providing around 7 GHz unlicensed bandwidth is considered very attractive and several solutions have been explored [2][3][4]. However, the transmission of 60 GHz wireless signals is limited to few meters and therefore other frequency bands are being explored [5].…”

Section: Introductionmentioning

confidence: 99%

“…Transmission of 1 Gbit/s and 10 Gbit/s is considered employing electrical baseband multilevel amplitude modulation (M-PAM), with M=2, 4,8. M=2 refers to modulation with 2 levels, on-off keying (OOK).…”

Section: Introductionmentioning

confidence: 99%

Wavelength shift tolerance of a heterodyne detection scheme for cost-efficient DWDM-PON / 60 GHz wireless integration

et al. 2015

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Radio-over-fiber systems employing remote antenna units (RAUs) based on coherent optical heterodyne detection of two phase uncorrelated lasers and envelope detection have been recently demonstrated. By using two uncorrelated lasers, this system concept allows simple implementation that can additionally be improved, if thermally uncooled lasers are used. Although such asynchronous receiver design is mildly affected by the laser phase noise, it suffers from the wavelength drift that occurs between the uncooled laser sources. Also, there are performance penalties due to high laser line-width when complex modulation formats are used for transmission. In this work, we analyze the performance of heterodyne based optical receivers, using OOK and multilevel modulation.

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“…The Rofnet (Reconfigurable Radio over Fiber network) architecture [5], has the key features of combining a low cost BS design, incorporating a reflective semiconductor optical amplifier (RSOA), with fiber dispersion mitigation provided by optical single sideband modulation techniques. Additionally, each BS is fed with four 1 Gbit/s subcarrier multiplexing (SCM) mm-wave channels.…”

Section: Introductionmentioning

confidence: 99%

“…The target of a converged hybrid architecture is to connect, via a common optical WDM-PON infrastructure, both wireline and wireless users. Several hybrid wireless WDM-PON architecture have been proposed recently [4] integrating mm-wave wireless services within WDM-PONs.The Rofnet (Reconfigurable Radio over Fiber network) architecture [5], has the key features of combining a low cost BS design, incorporating a reflective semiconductor optical amplifier (RSOA), with fiber dispersion mitigation provided by optical single sideband modulation techniques. Additionally, each BS is fed with four 1 Gbit/s subcarrier multiplexing (SCM) mm-wave channels.…”

mentioning

confidence: 99%

Convergence of optical and millimeter-wave broadband wireless access networks

Medeiros

Avó

Laurencio

et al. 2009

2009 11th International Conference on Transparent Optical Networks

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This paper discusses hybrid fiber optic access network architectures combining baseband wireline and mm-wave channels. We focus on mm-wave radio over fiber (RoF) optical access network architectures which combine radio subcarrier multiplexing techniques to improve system efficiency with fiber dispersion mitigation provided by optical single sideband modulation techniques. Besides discussing the network architecture we focus on the intermodulation effects arising from the nonlinear characteristics of the optical modulator and the reflective semiconductor optical amplifier. Keywords: radio over fiber, reflective semiconductor optical amplifiers, optical single side band, optical access networks, wavelength division multiplexing. INTRODUCTIONThe mm-wave fiber radio networks operating in the 60 GHz region are considered key players in the future telecommunication scenario [1]. The abundant unlicensed spectrum around 60 GHz offers the potential for multi-gigabit/s indoor Wireless Personal Area Networking (WPAN) removing the bandwidth limitation of the present wireless networks. Recently it was demonstrated that it is possible to produce low cost CMOS components and circuits operating at 60 GHz [2]. These advances combined with the increasing consumer demands for high-speed multimedia data communications, such as huge data file transmission and video services with high-definition TV have already lead to standardization activities such as the. IEEE 802.15.3c working group.The standard for 60GHz WPAN networks cover relatively short distances (10 -30 m) and supports high data rate applications (480 Mbit/s -3 Gbit/s). Due to the small coverage area, 60 GHz networks require a large number of base stations (BSs) to cover a service area. This requirement has led to the development of system architectures where functions such as signal/routing/processing, handover and frequency allocation are carried out at the central office (CO). The best solution for connecting the CO with BSs in such radio network is via an optical fiber network, now known as radio over fiber (RoF) network [3]. By exploiting high bandwidth wavelength-division multiplexing (WDM) networks, an integrated efficient fiber radio backbone network can be realized, where mm-wave carriers are modulated with data and placed on a particular wavelength channel and delivered to a specific BS.Currently, wired and wireless services are separately provided by two independent physical networks. However, with the fast evolution of wireless technology, ubiquitous and always on wireless systems in buildings are expected to emerge in the near future. Hybrid broadband access networks combining wireless and wireline Wavelength Division Multiplexed Passive Optical Networks (WDM-PONs) networks can support the requirement of these future broadband ubiquitous networks. The target of a converged hybrid architecture is to connect, via a common optical WDM-PON infrastructure, both wireline and wireless users. Several hybrid wireless WDM-PON architecture have been proposed recently [4] i...

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Radio over fiber access network architecture employing reflective semiconductor optical amplifiers

Cited by 16 publications

References 6 publications

Technologies for future wavelength division multiplexing passive optical networks

Technologies for future wavelength division multiplexing passive optical networks

Wavelength shift tolerance of a heterodyne detection scheme for cost-efficient DWDM-PON / 60 GHz wireless integration

Convergence of optical and millimeter-wave broadband wireless access networks

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