Simultaneous electrooptical upconversion, remote oscillator generation, and air transmission of multiple optical WDM channels for a 60-GHz high-capacity indoor system

Kojucharow, K.; Sauer, Matthias; Kaluzni, H.; Sommer, D.; Poegel, F.; Nowak, W.; Finger, Adolf; Ferling, Dieter

doi:10.1109/22.808967

Cited by 46 publications

(16 citation statements)

References 16 publications

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“…This architecture can also be extended to fit the RF generation and delivery in wavelength division multiplexing (WDM) systems [43], [44], enabling simultaneous delivery of the 60 GHz RF carrier in CO-BS 1 ÀBS 2 and CO-BS 1 ÀBS 4 directions.…”

Section: Network Architecture and Potential Application Scenariosmentioning

confidence: 99%

Feasibility Study and Experimental Verification of Simplified Fiber-Supported 60-GHz Picocell Mobile Backhaul Links

et al. 2013

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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-errorcorrection limit is achieved for a range of potential fiber deployment scenarios. A spurious free dynamic range of 73 dB-Hz 2=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.

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Section: Network Architecture and Potential Application Scenariosmentioning

confidence: 99%

Feasibility Study and Experimental Verification of Simplified Fiber-Supported 60-GHz Picocell Mobile Backhaul Links

et al. 2013

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“…Additionally, one of the major advantages of such a two-step implementation of optical N-tupling can be observed in a WDM system, as shown in Fig. 37, which requires photo-detected signals to be generated at high RF carriers [85]. Direct modulation of the laser diodes cannot be readily achieved using RF signals at high frequencies, while the employment of an external modulator for each source is expensive.…”

Section: ) Design Guidelines When Using Optical N-tupling Techniquesmentioning

confidence: 99%

Millimeter-Wave Radio Over Fiber Optical Upconversion Techniques Relying on Link Nonlinearity

Thomas

El‐Hajjar

Hanzo

2016

IEEE Commun. Surv. Tutorials

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Abstract-A study of advanced upconversion techniques used in radio over fiber (ROF) is provided. With the huge increase in both the number of wireless communication subscribers and the bandwidth required per customer, migrating to higher frequencies, i.e., from lower radio frequency to millimeter-wave carriers, is an essential solution. However, due to the short propagation range of millimeter waves, a large number of radio access points are required for providing reliable coverage, which would increase the infrastructure costs. Hence, the transmission of RF signals between the central (or control) points and radio access points (or remote antenna units) using optical fibers is one of the major access network solutions that have been proposed for future high-bandwidth wireless communication systems. In this paper, we introduce the basics of ROF communication, including optical modulation, the optical channel, and the optical detection techniques. Then we survey the family of advanced optical upconversion techniques that exploit the nonlinearity of the ROF link. Specifically, we describe how optical upconversion can be achieved by exploiting the Mach-Zehnder modulator's nonlinearity, wavelength conversion techniques, or the photodetector's nonlinearity. The wavelength conversion techniques rely on the nonlinearities present in the fiber, in the optical amplifier, or in the electroabsorption modulator. Index Terms-Radio over fiber, direct modulation, external modulation, direct photo-detection, coherent photo-detection, mach zehnder modulator, cross phase modulation, self phase modulation, four wave mixing, stimulated raman scattering, stimulated brillouin scattering, optical frequency modulation, optical phase modulation, optical intensity modulation, optical single side band modulation, optical double side band modulation, optical carrier suppression modulation, sub carrier multiplexing, wavelength division multiplexing, optical N-tupling, optical upconversion, semiconductor optical amplifier, electro-absorption modulator, mach zehnder interferometer, highly nonlinear dispersion shifted fiber, nonlinear optical loop mirror, millimeter wave, 5G, microwave photonics.

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“…In all examples discussed below, the frequency range is chosen to be the same as in the experimental system of [9]:…”

Section: Resultsmentioning

confidence: 99%

“…In [9], we proposed and demonstrated a system concept where a -band master oscillator was simultaneously imposed onto the optical channels of a dense wavelength division multiplex (DWDM) system by means of a single external electrooptical modulator (EOM). All IF signals, which are directly modulating the laser diodes, are electrooptically upconverted to the millimeter range.…”

Section: Introductionmentioning

confidence: 99%

Millimeter-wave signal properties resulting from electrooptical upconversion

Kojucharow¹,

Sauer

Schäffer³

2001

IEEE Trans. Microwave Theory Techn.

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This paper describes the combined effects of laser chirp, electrooptical mixing, dispersive fiber transmission, and photodetection on the nonlinear signal properties of the electrooptically generated millimeter-wave signal (60 GHz). Analytical expressions describing the complex currents of fundamental and higher order products are provided for the case of single-tone modulation as well as for two-tone modulation, respectively. Examples will be considered including the nonlinear amplitude response (output power at millimeter-wave range versus input power at IF), the nonlinear phase response (relative output phase at millimeter-wave range versus input power at IF), the input related 1-dB gain compression condition, the amplitude response of third-and fifth-order intermodulation products, as well as the input related intercept points for the latter signals. The model developed performed well, even under moderate to large signal conditions, and very good agreement has been achieved between theory and experiment.

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Simultaneous electrooptical upconversion, remote oscillator generation, and air transmission of multiple optical WDM channels for a 60-GHz high-capacity indoor system

Cited by 46 publications

References 16 publications

Feasibility Study and Experimental Verification of Simplified Fiber-Supported 60-GHz Picocell Mobile Backhaul Links

Feasibility Study and Experimental Verification of Simplified Fiber-Supported 60-GHz Picocell Mobile Backhaul Links

Millimeter-Wave Radio Over Fiber Optical Upconversion Techniques Relying on Link Nonlinearity

Millimeter-wave signal properties resulting from electrooptical upconversion

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