Dr. Andreas Stöhr Profile

Dr. Andreas Stöhr

at Univ Duisburg-Essen

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 29 February 2012 Paper

Integration platform for 72-GHz photodiode-based wireless transmitter

Bouchaib Bouhlal, Sascha Lutzmann, Merih Palandöken, Vitaly Rymanov, Andreas Stöhr, Tolga Tekin

Proceedings Volume 8259, 82590H (2012) https://doi.org/10.1117/12.909726

KEYWORDS: Signal attenuation, Waveguides, Photodiodes, Transmitters, Photodetectors, Antennas, Optical instrument design, Wireless communications, Optical amplifiers, Waveguide modes

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Proceedings Article | 28 February 2012 Paper

Double mushroom 1.55-μm waveguide photodetectors for integrated E-band (60-90 GHz) wireless transmitter modules

Vitaly Rymanov, Tolga Tekin, Andreas Stöhr

Proceedings Volume 8259, 82590E (2012) https://doi.org/10.1117/12.908767

KEYWORDS: Waveguides, Photodetectors, Transmitters, Extremely high frequency, Wave propagation, Antennas, Integrated optics, Capacitance, Resistance, Fiber couplers

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Proceedings Article | 4 May 2006 Paper

THz photomixers: an overview

Andreas Stöhr, Dieter Jäger

Proceedings Volume 6194, 61940D (2006) https://doi.org/10.1117/12.673832

KEYWORDS: Terahertz radiation, Photodetectors, Oscillators, Photonics, Signal generators, Heterodyning, Waveguides, Antennas, Continuous wave operation, Sensors

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Proceedings Article | 1 September 2004 Paper

Heterogeneous wireless/wireline optical access networks with the R-EAT as backend component

Klaus Hagedorn, Ralf Gindera, Andreas Stohr, Dieter Jager

Proceedings Volume 5466, (2004) https://doi.org/10.1117/12.548960

KEYWORDS: Transceivers, Optical networks, Modulation, Analog electronics, Channel projecting optics, Modulators, Optical fibers, Fiber optics, Transmittance, Local area networks

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Proceedings Article | 1 September 2004 Paper

Waveguide and antenna coupled travelling-wave 1.55-μm photodetectors for optical (sub)millimeter-wave generation

Andrei Malcoci, Andreas Stohr, Andres Sauerwald, Sven Schulz, Dieter Jager

Proceedings Volume 5466, (2004) https://doi.org/10.1117/12.548966

KEYWORDS: Antennas, Waveguides, Transmitters, Photodetectors, Terahertz radiation, Free space optics, Free space, Heterodyning, Sensors, Integrated optics

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Proceedings Article | 18 December 2000 Paper

Photonics for millimeter-wave broadband wireless

Andreas Stoehr, Robert Heinzelmann, Ken-ichi Kitayama, Toshiaki Kuri, Dieter Jaeger

Proceedings Volume 4111, (2000) https://doi.org/10.1117/12.422148

KEYWORDS: Modulation, Waveguides, Transceivers, Modulators, Signal detection, Absorption, Photonics, Photodetectors, Sensors, Fiber optics

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Proceedings Article | 15 December 2000 Paper

Improved fiber-chip coupling using low-loss tapered fibers

Thomas Alder, Robert Heinzelmann, Andreas Stoehr, Dieter Jaeger

Proceedings Volume 4087, (2000) https://doi.org/10.1117/12.406411

KEYWORDS: Optical fibers, Waveguides, Single mode fibers, Etching, Fiber couplers, Fabrication, Modulators, Cladding, Tolerancing, Wet etching

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Proceedings Article | 15 December 2000 Paper

Electroabsorption transceiver (EAT): device concepts and system applications

Andreas Stoehr, Robert Heinzelmann, Toshiaki Kuri, Ken-ichi Kitayama, Dieter Jaeger

Proceedings Volume 4087, (2000) https://doi.org/10.1117/12.406417

KEYWORDS: Transceivers, Modulation, Signal detection, Telecommunications, L band, Wireless communications, Waveguides, Modulators, Network architectures, Polarization

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Recently, lightwave systems have attracted great interest not only for digital optical communication but also for the distribution of microwave and mm-wave signals in wireless applications. Future wireless communication networks are expected to offer broadband multimedia services to a large number of subscribers. As a consequence, the radio frequency is expected to be within the mm-wave band where a sufficient bandwidth for the large number of broadband channels is available. Since the electrical transmission of the mm-wave radio signals over long distances is not feasible, fiber-wireless systems have attracted great interest. They are considered to form the backbone of future broadband mm-wave wireless communication systems. Obviously, the successful implementation of mm-wave wireless communication networks in mass-market applications strongly depends on the costs of the infrastructure. In that respect, specially the cost of each single base station (BS) is a very critical factor since future wireless networks are expected to support a large number of remote BSs. Consequently, it is of great interest to reduce the base station complexity and cost. In this paper, we present a novel photonic transceiver component and discuss its application in mm-wave fiber-wireless systems. In detail, an InP-based 1 .55im waveguide electroabsorption transceiver (EATs) is presented that serves as a modulator and a photodetector simultaneously. Besides the basic device concept and its properties, the employment of high-speed EAT in 60GHz millimeter-wave (mm-wave) fiber-wireless applications is experimentally demonstrated. For the first time, full-duplex broadband (155.52Mbit/s) fiber-optic transmission in the 60GHz band has been achieved in a point-to-point link. Furthermore, a point-to-multipoint fiber-ring network architecture employing EAT is presented and in a first experiment full-duplex point-to-multipoint operation in the 60GHz band is experimentally demonstrated.

Proceedings Article | 4 December 1998 Paper

Remote optical sensor system for E-field measurements

Robert Heinzelmann, Andreas Stoehr, Thomas Alder, D. Kalinowski, Manuel Schmidt, Matthias Gross, Dieter Jaeger

Proceedings Volume 3491, (1998) https://doi.org/10.1117/12.328643

KEYWORDS: Modulators, Sensors, Waveguides, Optical amplifiers, Antennas, Photodiodes, Optical sensors, Head, Fiber couplers, Near field optics

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Proceedings Article | 3 November 1998 Paper

Novel analog optical rf E-field sensor system

Andreas Stoehr, Robert Heinzelmann, T. Langer, C. Rheinfelder, W. Heinrich, Thomas Alder, D. Kalinowski, Manuel Schmidt, Matthias Gross, Dieter Jaeger

Proceedings Volume 3463, (1998) https://doi.org/10.1117/12.330384

KEYWORDS: Sensors, Optical amplifiers, Modulators, Electric field sensors, Antennas, Waveguides, Head, Fiber amplifiers, Gallium arsenide, Fiber couplers

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