WDM-RoF-PON Architecture for Flexible Wireless and Wire-Line Layout

Cao, Zizheng; Yu, Jianjun; Zhou, Hui; Wang, Wenpei; Xia, Minmin; Wang, Jing; Tang, Qi; Chen, Lin

doi:10.1364/jocn.2.000117

Cited by 72 publications

(27 citation statements)

References 12 publications

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“…Integration Manuscript with existing WDM-PON infrastructure is expected to provide both wired and wireless access services. However, most of the proposed schemes of generating millimeter wave (mm-wave) radio signals at 60 GHz were based on an optical carrier suppression (OCS) technique which occupied large bandwidth and suffered from fiber chromatic dispersion (CD) [8], [9]. Furthermore, the requirement of narrow interleavers (IL) or optical bandpass filters (OBPF), in order to separate the two sidebands for wireless service, become the limitation of SE.…”

Section: Introductionmentioning

confidence: 99%

Efficient Delivery of Integrated Wired and Wireless Services in UDWDM-RoF-PON Coherent Access Network

Zhu

Zhang

Fan

et al. 2012

IEEE Photon. Technol. Lett.

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A high-capacity coherent ultradense wavelengthdivision multiplexing passive optical network integrated with a 60-GHz radio-over-fiber system has been designed and experimentally demonstrated for the first time. In this proposed architecture, millimeter-wave signal generation is achieved by coherent technology, in place of the optical carrier suppression technique, which requires modulators with large bandwidth and precise optical interleavers. The system fully exploits advantages of coherent access networks to provide both multigigabit wired and wireless access services with high spectral and power efficiencies. Successful wireless transmission of multichannel 3.3-Gb/s quadrature phase-shift keying signals with 10-GHz channel spacing over 50-km single-mode fiber (SMF-28) has been achieved.Index Terms-Coherent access network, radio-over-fiber (RoF), ultra-dense wavelength-division multiplexing passive optical network (UDWDM-PON).

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Section: Introductionmentioning

confidence: 99%

Efficient Delivery of Integrated Wired and Wireless Services in UDWDM-RoF-PON Coherent Access Network

Zhu

Zhang

Fan

et al. 2012

IEEE Photon. Technol. Lett.

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“…To reduce the total cost and make simpler configuration of the ROF system sand connect as many users as possible, novel schemes of wavelength reuse or centralized light-waves in the CO have been proposed and experimentally demonstrated in [6][7][8][9]. To realize optical millimeter-wave generation, many techniques have been reported, such as the frequency up-conversions using four-wave mixing [10], cross-gain modulation in a semiconductor amplifier [11][12][13], and frequency doubling using optical carrier suppression modulation [14][15].…”

Section: Abstract-we Have Investigated and Experimentally Demonstrated Amentioning

confidence: 99%

A cost-effective ROF system employing FBG and DML to generate optical mm-wave

Nguyen¹,

Huang

2013

Photon. Lett. Poland

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Abstract-We have investigated and experimentally demonstrated aROF system employing FBG and low-cost DML to generate an optical mm-wave. We employ FBG because the bandwidth of the optical modulator is largely reduced and the architecture of the ROF system is simpler. Because no expensive broadband external modulator is used, the overall system is considered as a cost-effective solution. This novel scheme employs low-cost DML to generate an mm-wave signal which is a practical scheme to be applied for future broadband access networks.Recently ROF techniques have become attractive solutions in realizing future broadband wireless networks to provide large capacity and high flexibility [1][2][3][4][5] because they can be used for the distribution of wireless signals which grow very fast. To reduce the total cost and make simpler configuration of the ROF system sand connect as many users as possible, novel schemes of wavelength reuse or centralized light-waves in the CO have been proposed and experimentally demonstrated in [6][7][8][9]. To realize optical millimeter-wave generation, many techniques have been reported, such as the frequency up-conversions using four-wave mixing [10], cross-gain modulation in a semiconductor amplifier [11][12][13], and frequency doubling using optical carrier suppression modulation [14][15]. When compared with an optical external modulator, the DML is cost-efficient and has a higher output power. For 40GHz optical mm-wave signal generation, only 20GHz optical and electrical components are required, because the generated optical mm-wave signal will be up to 40GHz after it is separated from the optical carrier by using FBG [16]. We employ FBG because the bandwidth of the optical modulator is largely reduced and the architecture of the ROF system is simpler. The ROF system which based on DML to generate an optical mm-wave carrying OOK signal has been introduced [17]. In this letter, we have investigated and experimentally demonstrated an ROF system employing FBG and low-cost DML to generate an optical mm-wave. A theoretical demonstration analysis of the proposed system is also presented. It can be considered as a very simple and cost-effective solution because a low RF oscillator is employed to generate an optical mmwave signal with frequency duplication. * E-mail: viet02342000@yahoo.com Table 1 shows the ROF system parameters. In this system, the expensive broadband external modulator is removed. We employ a high-frequency electrical mixer to generate RF signals which are employed to drive the DML to generate a DSB optical mm-wave.In the real system, there are some higher harmonics because of the nonlinearity of the DML, but they are too small to be considered. The 2.5Gb/s baseband signal is mixed with a 20GHz sinusoidal wave to realize sub-carrier modulation (SCM) and then the mixed signals are employed to drive DML to generate DSB optical signals. The waveform output of the DML which is driven by a mixing RF signal f(t)cosω l t can be approximately represented by G(t) which has an optic...

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“…In addition to these wireless standards, a significant amount of work has also been targeted toward millimeter-wave (mm-wave) wireless signals' distribution. 7,17,[20][21][22][23] Although the integration of optical and wireless technologies is able to simplify the backhaul infrastructure for the wireless networks, the implementation of this hybrid infrastructure is not straightforward. There are a number of issues regarding wireless signal transport, network layout, integration with existing infrastructure, and energy efficiency that have to be addressed.…”

Section: Introductionmentioning

confidence: 99%

Review of physical layer networking for optical-wireless integration

2015

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Abstract. We present a review of physical networking options and enabling system technologies for efficient unification of optical and wireless access backhaul infrastructure. Different physical layer integration architectures are reviewed in conjunction with the possible wireless signal transport schemes. We also review some of our research work as one possible physical layer integration technique using RF-overlay passive optical network incorporating an optical tandem single sideband (OTSSB) modulation scheme for simultaneous transport of wired and wireless signals.

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WDM-RoF-PON Architecture for Flexible Wireless and Wire-Line Layout

Cited by 72 publications

References 12 publications

Efficient Delivery of Integrated Wired and Wireless Services in UDWDM-RoF-PON Coherent Access Network

Efficient Delivery of Integrated Wired and Wireless Services in UDWDM-RoF-PON Coherent Access Network

A cost-effective ROF system employing FBG and DML to generate optical mm-wave

Review of physical layer networking for optical-wireless integration

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