Deep integrated optical access networks target to provide great capillarity and multiple ONTs for cost-and energy-efficient pervasive connectivity seamless supporting integrated wireless. Several key optical technologies are herein reported supporting integrated deep optical access: Bundled radio-over-fiber transmission is proposed and demonstrated for the provision of quintuple-play services achieving 125 km SSMF optical reach. Bend-insensitive fiber in-building distribution is also proposed and demonstrated supporting joint legacy coaxial transmission. Multimode POF is also proposed and demonstrated suitable for joint in-building distribution of MATV and SMATV broadcasting signals. Optical comb technology us is also demonstrated suitable for mm-wave radio generation of multiband OFDM wireless signals. Finally, multicore fiber transmission is also proposed and demonstrated suitable for the transmission of LTE and WIMAX in wireless fronthaul applications in a minimized inter-core crosstalk penalty configuration.

An optical system for the transmission of digital video broadcasting (DVB) signals is proposed and experimentally demonstrated. The transmission media comprises 1-mm diameter graded-index plastic optical fiber (GI-POF) with a relatively high bandwidth. The system is fully engineered using low-cost off-the-self components including a vertical-cavity surface-emitting laser, a silicon avalanche photodiode, POF connectors, and all integrated radio frequency (RF) circuitry. The RF distribution of standard DVB-satellite second generation signals in 950-2150 MHz and DVB-terrestrial signals in 470-790 MHz over 25-m GI-POF is successfully demonstrated.

A radio over fiber (RoF) transmission system based on a gain-switched laser as an optical comb source is proposed and demonstrated. 12.5 Gb/s 16 quadrature amplitude modulation (16 QAM) signal generation and transmission over 25 km standard single-mode fiber is experimentally demonstrated using a 60 GHz carrier. The phase noise of the 60 GHz signal resulting from the beating of two partially phase uncorrelated optical tones is theoretically studied and experimentally investigated. Phase noise comparison with different linewidth comb sources is implemented in the proposed RoF system, and the performance of the various systems with different levels of phase noise is presented.

In this paper, we report on a gigabit capacity fiber-wireless system that enables smooth integration between high-speed wireless networks and dense wavelength-division-multiplexing (DWDM) access networks. By employing a centralized optical frequency comb, both the wireline and the wireless services for each DWDM user can be simultaneously supported. Besides, each baseband channel can be transparently upconverted to multiple radio-frequency (RF) bands for different wireless standards, which can be flexibly filtered at the end user to select the on-demand RF band, depending on the wireless applications. For demonstration, we transmit a 2.5 Gbit/s signal through the proposed system and successfully achieve a bit-error-rate (BER) performance well below the 7% overhead forward error correction limit of the BER of 2 x 10(-3) for both the wireline and the wireless signals in the 60 GHz band after 25 km single-mode fiber plus up to 6 m wireless distance.

We propose and experimentally demonstrate a fiber-wireless transmission system for optimized delivery of 60-GHz radio frequency (RF) signals through picocell mobile backhaul connections. We identify advantages of 60-GHz links for utilization in short-range mobile backhaul through feasibility analysis and comparison with an alternative E-band (60-90 GHz) technology. The 60-GHz fiber-wireless-fiber setup is then introduced: two spans of up to 20 km of optical fiber are deployed and bridged by up to 4 m of wireless distance. The 60-GHz radio-over-fiber technology is utilized in the first span of fiber transmission. The system is simplified and tailored for delivery of on-off keying data signals by employing a single module for lightwave generation and modulation combined with a simplified RF downconversion technique by envelope detection. Data signals of 1.25 Gb/s are transmitted, and a bit-error-rate performance below the 7% overhead forward-error-correction limit is achieved for a range of potential fiber deployment scenarios. A spurious free dynamic range of 73 dB-Hz2/3 is attained for a frequency-doubling photonic RF upconversion technique. The power budget margin that is required to extend the wireless transmission distance from 4 m to a few hundred meters has been taken into account in the setup design, and the techniques to extend the wireless distance are analyzed.

We present a 60 GHz wireless link fully supported with the optical fiber infrastructure. The architecture that we implement is suitable to provide the efficient wireless/fiber mobile backhaul in access/metropolitan area. Bit error rate (BER) performance below the 7% overhead forward error correction (FEC) limit is presented for transmission of 1.25 Gbps data signals. Ultimately, transmission through fiber-wireless-fiber link is achieved including 4 m of wireless distance and 20 km of standard single mode fiber (SSMF) interfacing the antennas on each side.

In this paper, we report on a detailed analysis and performance comparison work between 60 GHz radio-over-fiber systems based on a DFB laser and a C-band VCSEL. Coherent photonic up-conversion method is applied for the 60 GHz millimeter-wave signal generation. The generated signals are evaluated by means of phase noise and bit error rate for different transmission scenarios. The results show a positive potential to adopt both DFB lasers and VCSELs for the next generation 60 GHz hybrid fiber-wireless access networks.

This paper reports latest research results demonstrating experimentally the feasibility of the converged provision of optical access, cable and millimetre-wave wireless services fibre-to-the-home (FTTH) networks with a unique technological solution. Transmitting orthogonal frequency division multiplexing (OFDM) modulated signals in FTTH networks permits multi-Gb/s seamless service provision with a unique optical network infrastructure. The use of radio-over-fibre transmission of OFDM signals eliminates the need for re modulation of data format conversion when converged services are distributed. The experimental results demonstrate multi-Gb/s optical access in an OFDM passive optical network (PON) with successful integration of the optical access network and in-building optical and electrical distribution employing bend-insensitive single-mode fibre (BI-SMF) and conventional coaxial cabling (75 Ω) respectively. An ad-hoc OFDM signal providing Gigabit-Ethernet (GbE) connectivity can be distributed in FTTH in coexistence with other standard OFDM wireless services such as terrestrial digital video broadcasting (DVB-T). In this case, the DVB-T signal can be extracted from the FTTH access optical network and distributed through the legacy coaxial network available in the building, if present. As an additional feature, the proposed approach permits power-over-coaxial distribution. This allows commercial-available low-power DVB-T receivers and USB 3.0 devices to be charged directly from the coaxial cabling outlets. The performance of the DVB-T signals transmitted in coexistence has been evaluated in a FTTH PON demonstrating proper operation. The experimental results confirm negligible degradation on the received signal and successful DVB-T video broadcasting over FTTH networks in radio-over-fibre supporting joint optical in-home distribution and electrical coaxial cabling distribution. Finally, OFDM signals transmitted in the optical access are demonstrated to be adequate for photonic generation of electrical 19.1 Gb/s OFDM-modulated millimetre-wave wireless signals in the 75 - 110 GHz band. Wireless transmission of 16-QAM-OFDM signals is demonstrated with a BER performance within the forward error correction limits.

We propose and experimentally demonstrate an optical wireless DWDM system at 60 GHz with optical incoherent heterodyne up-conversion using an optical frequency comb. Multiple users with wireline and wireless services are simultaneously supported.

In this letter, we present a scalable high-speed W-band (75-110-GHz) fiber wireless communication system. By using an optical frequency comb generator, three-channel 8.3-Gb/s/ch optical orthogonal frequency-division-multiplexing (OOFDM) baseband signals in a 15-GHz bandwidth are seamlessly translated from the optical to the wireless domain. The W-band wireless carrier is generated from heterodyne mixing the OOFDM baseband signal with a free-running laser. A W-band electronic down-converter and a digital signal processing-based receiver are used. Three-channel QPSK-OFDM W-band wireless signals are transmitted over 0.5- and 2-m air distance with and without 22.8-km single-mode fiber, respectively, with achieved performance below the forward error correction limit.

In this paper, we propose and experimentally demonstrate a simple, cost-effective hybrid gigabit fiber-wireless system for in-building wireless access. Simplicity and cost-effectiveness are achieved in all parts of the system by utilizing direct laser modulation, optical frequency up-conversion, combined single mode/multimode fiber transmission and envelope detection. Error-free transmission of 2-Gbps data in 60-GHz band over a composite channel including 10-km standard single-mode fiber (SSMF)/1-km multimode fiber (MMF) and 6.5-m air transmission was successfully achieved. (C) 2012 Elsevier Inc. All rights reserved.

We demonstrate scalable optical comb- and heterodyning-based generation, optical and 1.3-m wireless transmission, and electrical heterodyne detection of multiband OFDM up to 38.2 Gb/s occupying 14.4-GHz RF bandwidth, for high-capacity optical-wireless links in 75-110 GHz.

A low-cost in-home distribution of full-standard digital TV jointly with high bitrate data using large-core plastic optical fibre is proposed and demonstrated. A 2.7 Gb/s DMT signal and two-channel DVB-T video signals are generated, transmitted and received exhibiting excellent performance.

The low-cost in-home distribution of full-standard digital TV jointly with high-bitrate data using 50 m long 1 mm core diameter graded-index plastic optical fiber (GI-POF) is proposed and experimentally demonstrated. Discrete multitone (DMT) modulation is demonstrated to provide an adaptive bitrate which can spectrally coexist with digital video broadcasting-terrestrial (DVB-T) signals in 470-862 MHz. A 3 Gb/s DMT signal and two DVB-T channels are generated, transmitted and received exhibiting excellent performance.

This index covers all technical items - papers, correspondence, reviews, etc. - that appeared in this periodical during the year, and items from previous years that were commented upon or corrected in this year. Departments and other items may also be covered if they have been judged to have archival value. The Author Index contains the primary entry for each item, listed under the first author's name. The primary entry includes the coauthors' names, the title of the paper or other item, and its location, specified by the publication abbreviation, year, month, and inclusive pagination. The Subject Index contains entries describing the item under all appropriate subject headings, plus the first author's name, the publication abbreviation, month, and year, and inclusive pages. Note that the item title is found only under he primary entry in the Author Index.

The photonic generation of electrical orthogonal frequency-division multiplexing (OFDM) modulated wireless signals in the 75-110 GHz band is experimentally demonstrated employing in-phase/quadrature electrooptical modulation and optical heterodyn upconversion. The wireless transmission of 16-quadrature-amplitude-modulation OFDM signals is demonstrated with a bit error rate performance within the forward error correction limits. Signals of 19.1 Gb/s in 6.3-GHz bandwidth are transmitted over up to 1.3-m wireless distance. Optical comb generation is further employed to support different channels, allowing the cost and energy efficiency of the system to be increased and supporting different users in the system. Four channels at 9.6 Gb/s/ch in 14.4-GHz bandwidth are generated and transmitted over up to 1.3-m wireless distance. The transmission of a 9.6-Gb/s single-channel signal occupying 3.2-GHz bandwidth over 22.8 km of standard single-mode fiber and 0.6 m of wireless distance is also demonstrated in the multiband system.

A cost and energy-efficient OFDM-based network architecture capable of supporting a large number of users in an optical access network integrating the in-building optical infrastructure is proposed. Efficiency is based on the use of flexible optical comb sources and the distribution of multi-standard OFDM-based signals. High capacity is achieved implementing an “elastic” optical comb. This comb is based on time-domain multi-level phase modulation of a pulsed laser. Two-fold and four-fold comb line multiplication is demonstrated employing electro-optic bi-phase modulation. Cost efficiency is further achieved by the transmission of full-standard OFDM-based radio-over-fibre signals in each of the comb wavelengths. This permits a straightforward integrated network including off-the-shelf equipment employing wireless standard signals LTE, WiMAX and UWB, altogether a custom OFDM-GbE signal for wired data. Successful transmission of this OFDM-bundle in coexistence requires mitigation of the optical transmission impairments when a long-reach access network is considered. Using novel impairment compensation techniques enables 100 km standard single-mode fibre reach without in-line optical dispersion compensation in the network. Finally, energy efficiency is addressed integrating broadcast DVB-T transmission in the in-building optical network. In this approach, neither coax cabling nor associated amplification elements are required. Distribution of DVB-T in distances up to 500 m in bend-insensitive single-mode fibre is reported with great flexibility.

We present a simple architecture for realizing high capacity W-band (75-110 GHz) photonics-wireless system. 42.13 Gbit/s 16QAM-OFDM optical baseband signal is obtained in a seamless 15 GHz spectral bandwidth by using an optical frequency comb generator, resulting in a spectral efficiency of 2.808 bits/s/Hz. Transparent photonic heterodyne up-conversion based on two free-running lasers is employed to synthesize the W-band wireless signal. In the experiment, we program an improved DSP receiver and successfully demonstrate photonics-wireless transmission of 8.9 Gbit/s, 26.7 Gbit/s and 42.13 Gbit/s 16QAM-OOFDM W-band signals, with achieved bit-error-rate (BER) performance below the forward error correction (FEC) limit.

A reconfigurable multiwavelength source based on time-domain electrooptic phase modulation of a pulsed laser is proposed and experimentally demonstrated. The technique permits great reconfiguration in the spectrum allocation and wavelength separation. A tunable 5-GHz and 2.5-GHz frequency spacing from a 10-GHz mode-locked laser is experimentally demonstrated. A 5-GHz frequency shift is also demonstrated.

We demonstrate that, by jointly optimizing video coding and radio-over-fibre transmission, we extend the reach of 60-GHz wireless distribution of high-quality high-definition video satisfying low complexity and low delay constraints, while preserving superb video quality.