Prof. Martin Schell Profile

Prof. Martin Schell

Director at Fraunhofer-HHI

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Publications (33)

Proceedings Article | 20 November 2024 Paper

Room temperature 96x96 InGaAs/InP SPAD array for SWIR imaging

P. Rustige, P. Runge, M. Schell

Proceedings Volume 13192, 131920V (2024) https://doi.org/10.1117/12.3033437

KEYWORDS: Single photon avalanche diodes, Imaging arrays, Short wave infrared radiation, LIDAR, Detector arrays, Readout integrated circuits, Photodetectors, Optical sensors, Indium gallium arsenide

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Proceedings Article | 18 June 2024 Presentation

Advances in coherent optoelectronic cw-THz spectroscopy

Lars Liebermeister, Lauri Schwenson, Milan Deumer, Konstantin Wenzel, Florian Walter, Steffen Breuer, Simon Nellen, Sebastian Lauck, Cornelius Mach, Alexander Jäckel, Enrique Castro-Camus, Martin Koch, Martin Schell, Robert Kohlhaas

Proceedings Volume PC12994, PC129940D (2024) https://doi.org/10.1117/12.3016918

KEYWORDS: Spectroscopy, Terahertz radiation, Optoelectronics, Receivers, Photonic integrated circuits, Integrated optics, Wireless communications, Waveguides, Ultrafast phenomena, Terahertz spectroscopy

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Proceedings Article | 13 March 2024 Presentation

Hybrid photonic integrated circuits for NIR and VIS

David de Felipe Mesquida, Tianwen Qian, Maximilian Ott, Jakob Reck, Csongor Keuer, Martin Kresse, Klara Mihov, Madeleine Weigel, Philipp Winklhofer, Crispin Zawadzki, Moritz Kleinert, Norbert Keil, Martin Schell

Proceedings Volume PC12906, PC129060J (2024) https://doi.org/10.1117/12.3002791

KEYWORDS: Photonic integrated circuits, Near infrared, Waveguides, Tunable lasers, Polymers, Windows, Silicon, Quantum technology applications, Quantum technologies, Quantum sensing

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Proceedings Article | 12 March 2024 Presentation + Paper

1550 nm broad area large optical cavity laser with 4.9 W CW output power

Niklas Kanold, Martin Moehrle, Falco Ehrensack, Martin Schell

Proceedings Volume 12867, 1286708 (2024) https://doi.org/10.1117/12.3001390

KEYWORDS: High power lasers, High power diode lasers, Broad area laser diodes, LIDAR, Continuous wave operation, Laser stabilization, Emission wavelengths, Waveguides, Optical resonators, Optical gratings, Quantum wells

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Proceedings Article | 12 March 2024 Presentation

Polymer-based hybrid photonic integration for terabit optical transceivers

David de Felipe Mesquida, Martin Kresse, Madeleine Weigel, Marcel Amberg, Michael Theurer, Tianwen Qian, Philipp Winklhofer, Klara Mihov, Jakob Reck, Csongor Keuer, Moritz Kleinert, Crispin Zawadzki, Patrick Runge, Martin Moehrle, Norbert Keil, Martin Schell

Proceedings Volume PC12892, PC128920H (2024) https://doi.org/10.1117/12.3002707

KEYWORDS: Polymers, Transceivers, Integrated optics, Polymer optics, Polymer thick film flex circuits, Photonic integrated circuits, Chip manufacturing, Modulation, Wavelength division multiplexing, Single mode fibers

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Proceedings Article | 11 March 2024 Presentation + Paper

Fiber-coupled terahertz time-domain spectrometer with 10 THz bandwidth using InGaAs photoconductive membranes on silicon

A. Dohms, S. Keyvaninia, M. Gruner, S. Breuer, S. Nellen, L. Liebermeister, M. Schell, R. Kohlhaas

Proceedings Volume 12885, 1288503 (2024) https://doi.org/10.1117/12.3003030

KEYWORDS: Terahertz radiation, Indium gallium arsenide, Antennas, Silicon, Spectroscopy, Principal component analysis, Absorption, Receivers, Transmittance, Photoresistors

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Proceedings Article | 11 March 2024 Presentation + Paper

cw-THz receivers based on rhodium-doped InGaAs with 125 dB peak dynamic range

Milan Deumer, Steffen Breuer, Shahram Keyvaninia, Alexander Dohms, Simon Nellen, Chris Nguyen, Lars Liebermeister, Martin Schell, Robert Kohlhaas

Proceedings Volume 12885, 1288505 (2024) https://doi.org/10.1117/12.3003109

KEYWORDS: Terahertz radiation, Receivers, Indium gallium arsenide, Rhodium, Epitaxy, Continuous wave operation

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Proceedings Article | 15 March 2023 Presentation + Paper

Novel >57 GHz bandwidth O-band InGaAlAs MQW RW DFB

Gayatri Vasudevan Rajeswari, Martin Moehrle, Falco Ehrensack, Ute Troppenz, Ariane Sigmund, Martin Schell

Proceedings Volume 12440, 1244007 (2023) https://doi.org/10.1117/12.2656921

KEYWORDS: Edge emitting semiconductor lasers, High speed photonics, Distributed feedback semiconductor lasers, Distributed Bragg reflectors, Amplitude modulation, Frequency response, Continuous wave operation, Modulation frequency

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Proceedings Article | 15 March 2023 Presentation + Paper

Photonic integrated circuits for 5G-and-beyond networks: enabling the mmWave band and beyond with InP-based photomixers in integrated transceivers

Efstathios Andrianopoulos, Milan Deumer, Tianwen Qian, Nikolaos Lyras, Simon Nellen, Evangelos Pikasis, Georgia Ntouni, Eleftherios Loghis, Elias Tsirbas, David de Felipe, Panos Groumas, Christos Tsokos, Maria Massaouti, Christos Kouloumentas, Dimitrios Kritharidis, Robert Kohlhaas, Norbert Keil, Martin Schell, Hercules Avramopoulos

Proceedings Volume 12429, 1242904 (2023) https://doi.org/10.1117/12.2648079

KEYWORDS: Terahertz radiation, Receivers, Principal component analysis, Photonic integrated circuits, Signal detection, Waveguides

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Proceedings Article | 13 March 2023 Presentation + Paper

Purely photonic wireless link at 120 GHz carrier frequency enabled by heterodyne detection with a photoconductive antenna

Milan Deumer, Oliver Stiewe, Simon Nellen, Robert Kohlhaas, Robert Elschner, Colja Schubert, Ronald Freund, Martin Schell

Proceedings Volume 12420, 1242005 (2023) https://doi.org/10.1117/12.2649256

KEYWORDS: Receivers, Terahertz radiation, Heterodyning, Antennas, Data transmission, Wireless communications, Waveguides, PIN photodiodes

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Proceedings Article | 7 March 2022 Open Access

Building a quantum communications infrastructure

Martin Schell

Proceedings Volume 12029, 1202909 (2022) https://doi.org/10.1117/12.2622833

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Proceedings Article | 5 March 2022 Presentation

Hybrid photonic integration for communication, sensing and quantum technology

Martin Schell, Norbert Keil, Moritz Kleinert, David de Felipe, Crispin Zawadzki, Madeleine Weigel, Martin Kresse, Michael Theurer, Hauke Conradi, Tianwen Qian

Proceedings Volume PC12004, PC1200407 (2022) https://doi.org/10.1117/12.2610737

KEYWORDS: Quantum communications, Waveguides, Polymers, Polymer multimode waveguides, Photonic integrated circuits, Phased array optics, Optical isolators, Laser optics, Switches, Sensors

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Proceedings Article | 5 March 2021 Presentation + Paper

A new concept for spatially resolved coherent detection with vertically illuminated photodetectors targeting ranging applications

Pascal Rustige, Patrick Runge, Francisco Soares, Jan Krause, Martin Schell

Proceedings Volume 11682, 1168206 (2021) https://doi.org/10.1117/12.2576323

KEYWORDS: Photodetectors, Target detection, Ranging, LIDAR, Coherence imaging, Solid state electronics, Signal generators, Sensors, Receivers, Oscillators

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Proceedings Article | 5 March 2021 Presentation

Novel photoconductive antennas based on rhodium doped InGaAs with 637 µW emitted THz power

Robert Kohlhaas, Steffen Breuer, Lars Liebermeister, Simon Nellen, Milan Deumer, Martin Schell, Björn Globisch

Proceedings Volume 11685, 116851K (2021) https://doi.org/10.1117/12.2582964

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Proceedings Article | 1 April 2020 Presentation + Paper

53 nm sampled grating tunable lasers from an InP generic foundry platform

Moon-Hyeok Lee, Francisco Soares, Moritz Baier, Martin Möhrle, Wolfgang Rehbein, Martin Schell

Proceedings Volume 11356, 1135605 (2020) https://doi.org/10.1117/12.2554541

KEYWORDS: Tunable lasers, Waveguides, Laser applications, Semiconductor lasers, Reflection, Reflectivity, Lithography, Laser development

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Proceedings Article | 10 March 2020 Presentation

Continuous-wave terahertz spectrometer without active phase modulation (Conference Presentation)

Björn Globisch, Lars Liebermeister, Simon Nellen, Robert Kohlhaas, Martin Schell

Proceedings Volume 11279, 112790U (2020) https://doi.org/10.1117/12.2545856

KEYWORDS: Terahertz radiation, Phase modulation, Spectroscopy, Continuous wave operation, Receivers, Free space optics, Electronics, Phase shift keying, Optoelectronics, Complex systems

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Proceedings Article | 10 March 2020 Presentation

Next-generation photo-conductive THz devices for 1550nm excitation (Conference Presentation)

Björn Globisch, Robert Kohlhaas, Steffen Breuer, Lars Liebermeister, Simon Nellen, Martin Schell

Proceedings Volume 11279, 1127911 (2020) https://doi.org/10.1117/12.2546113

KEYWORDS: Terahertz radiation, Antennas, Terahertz spectroscopy, Iron, Transceivers, Spectroscopes, Indium gallium arsenide, Molecular beam epitaxy, Receivers

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Proceedings Article | 2 March 2020 Presentation + Paper

Hybrid integrated silicon nitride lasers

Jörn Epping, Arne Leinse, Ruud Oldenbeuving, Ilka Visscher, Douwe Geuzebroek, Dimitri Geskus, Albert van Rees, Klaus Boller, Michael Theurer, Martin Möhrle, Martin Schell, Chris G. Roeloffzen, René Heideman

Proceedings Volume 11274, 112741L (2020) https://doi.org/10.1117/12.2552264

KEYWORDS: Resonators, Silicon, Semiconductor lasers, Integrated optics, Waveguides, Mirrors, Signal to noise ratio, Optical filters, Laser resonators, Hybrid silicon lasers

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Proceedings Article | 25 February 2020 Presentation + Paper

Hybrid integration of a polarization independent optical circulator

Hauke Conradi, David de Felipe, Moritz Kleinert, Madeleine Nuck, Martin Kresse, Crispin Zawadzki, Anja Scheu, Norbert Keil, Martin Schell

Proceedings Volume 11283, 112830J (2020) https://doi.org/10.1117/12.2545592

KEYWORDS: Polarization, Waveguides, Free space optics, Polymers, Integrated optics, Polymer multimode waveguides, GRIN lenses, Switching, Switches, Magnetism

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Proceedings Article | 4 March 2019 Presentation + Paper

3D photonic integrated 4x4 multi-mode interference coupler

Madeleine Nuck, Moritz Kleinert, Hauke Conradi, David de Felipe, Crispin Zawadazki, Anja Scheu, Martin Kresse, Walter Brinker, Norbert Keil, Martin Schell

Proceedings Volume 10921, 109211C (2019) https://doi.org/10.1117/12.2509776

KEYWORDS: Waveguides, 3D metrology, Polymers, Photonic integrated circuits, Switching, Optical switching, Matrices, Phase shifts, Cladding

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Proceedings Article | 1 March 2019 Presentation + Paper

Continuous wave terahertz spectrometer with 2 THz bandwidth and update rates of 24 Hz

Lars Liebermeister, Simon Nellen, Robert Kohlhaas, Martin Schell, Björn Globisch

Proceedings Volume 10917, 109171E (2019) https://doi.org/10.1117/12.2509606

KEYWORDS: Terahertz radiation, Spectroscopy, Continuous wave operation, Receivers, Reflection, Tunable lasers, Infrared radiation, Nondestructive evaluation, Terahertz spectroscopy, Modulation

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Proceedings Article | 23 February 2018 Paper

Recent progress of continuous-wave terahertz systems for spectroscopy, non-destructive testing, and telecommunication

Simon Nellen, Björn Globisch, Robert Kohlhaas, Lars Liebermeister, Martin Schell

Proceedings Volume 10531, 105310C (2018) https://doi.org/10.1117/12.2290207

KEYWORDS: Terahertz radiation, Receivers, Signal detection, Spectroscopy, Signal to noise ratio, Sensors, Optoelectronics, Continuous wave operation, Heterodyning, Antennas

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Proceedings Article | 23 February 2018 Paper

Terahertz time-domain spectroscopy for non-destructive testing

Björn Globisch, Simon Nellen, Robert Kohlhaas, Lars Liebermeister, Martin Schell

Proceedings Volume 10531, 105310O (2018) https://doi.org/10.1117/12.2290268

KEYWORDS: Terahertz radiation, Near field, Picosecond phenomena, Terahertz spectroscopy, Nondestructive evaluation, Photoresistors, Femtosecond phenomena, Antennas, Sensors, Receivers

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Proceedings Article | 22 February 2017 Paper

Photonic integrated devices and functions on hybrid polymer platform

Moritz Kleinert, David de Felipe, Crispin Zawadzki, Walter Brinker, Jung Han Choi, Philipp Reinke, Magnus Happach, Simon Nellen, Martin Möhrle, Heinz-Gunter Bach, Norbert Keil, Martin Schell

Proceedings Volume 10098, 100981A (2017) https://doi.org/10.1117/12.2256987

KEYWORDS: Waveguides, Photonic devices, Polymers, Graphene, Polymer multimode waveguides, Tunable lasers, Optical components, Integration, Integrated optics, Polymer optical fibers, Terahertz radiation, Photonic integrated circuits, Fiber couplers

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Proceedings Article | 20 February 2017 Paper

Gbit/s-operation of graphene electro-absorption modulators in a passive polymer waveguide platform for data and telecommunications

M. Kleinert, P. Reinke, H.-G. Bach, W. Brinker, C. Zawadzki, A. Dietrich, D. de Felipe, N. Keil, M. Schell

Proceedings Volume 10107, 101070P (2017) https://doi.org/10.1117/12.2250131

KEYWORDS: Graphene, Polymers, Integrated optics, Optics manufacturing, Modulators, Polymer multimode waveguides, Waveguides, Absorption, Optoelectronics, Optical printed circuit boards, Resistance, Modulation, Capacitors, Telecommunications

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Proceedings Article | 25 February 2016 Paper

Hybrid polymer/InP dual DBR laser for 1.5 um continuous-wave terahertz systems

D. de Felipe, M. Happach, S. Nellen, W. Brinker, M. Kleinert, C. Zawadzki, M. Möhrle, N. Keil, T. Göbel, K. Petermann, M. Schell

Proceedings Volume 9747, 974719 (2016) https://doi.org/10.1117/12.2212989

KEYWORDS: Terahertz radiation, Polymers, Fiber Bragg gratings, Continuous wave operation, Tunable lasers, Absorption, Signal detection, Heterodyning, Semiconductor lasers

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Proceedings Article | 1 May 2015 Paper

Passive and electro-optic polymer photonics and InP electronics integration

Z. Zhang, V. Katopodis, P. Groumas, A. Konczykowska, J. Dupuy, A. Beretta, A. Dede, E. Miller, J. Choi, P. Harati, F. Jorge, V. Nodjiadjim, R. Dinu, G. Cangini, A. Vannucci, D. Felipe, A. Maese-Novo, N. Keil, H. Bach, Martin Schell, H. Avramopoulos, Ch. Kouloumentas

Proceedings Volume 9516, 951603 (2015) https://doi.org/10.1117/12.2179221

KEYWORDS: Polymers, Modulators, Electronics, Waveguides, Transmitters, Modulation, Eye, Neodymium, Control systems, Ceramics

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Proceedings Article | 27 March 2013 Paper

Towards integrated continuous wave THz systems

Thorsten Göbel, Dennis Stanze, Ute Troppenz, Jochen Kreissl, Bernd Sartorius, Martin Schell

Proceedings Volume 8624, 86240L (2013) https://doi.org/10.1117/12.2001521

KEYWORDS: Terahertz radiation, Photonic integrated circuits, Modulators, Waveguides, Integrated optics, Optics manufacturing, Receivers, Continuous wave operation, Laser optics, Optical amplifiers

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Proceedings Article | 28 November 2011 Paper

Quantifying direct DQPSK receiver with integrated photodiode array by assessing an adapted common-mode rejection ratio

J. Wang, M. Lauermann, C. Zawadzki, W. Brinker, Z. Zhang, D. de Felipe, N. Keil, N. Grote, M. Schell

Proceedings Volume 8308, 83080R (2011) https://doi.org/10.1117/12.904384

KEYWORDS: Receivers, Polymers, Palladium, Waveguides, Photodiodes, Hybrid optics, Photonic integrated circuits, Mirrors, Polymer multimode waveguides, Phase shift keying

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Proceedings Article | 17 February 2011 Paper

40 Gbit/s directly modulated lasers: physics and application

U. Troppenz, J. Kreissl, M. Möhrle, C. Bornholdt, W. Rehbein, B. Sartorius, I. Woods, M. Schell

Proceedings Volume 7953, 79530F (2011) https://doi.org/10.1117/12.876137

KEYWORDS: Modulation, Transmitters, Phase shift keying, Modulators, Laser applications, Eye, Single mode fibers, Physics, Dispersion, Telecommunications

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Proceedings Article | 25 January 2011 Open Access

Higher-order modulation formats for spectral-efficient high-speed metro systems

R. Freund, M. Nölle, M. Seimetz, J. Hilt, J. Fischer, R. Ludwig, C. Schubert, H.-G. Bach, K.-O. Velthaus, M. Schell

Proceedings Volume 7959, 795902 (2011) https://doi.org/10.1117/12.881243

KEYWORDS: Receivers, Modulation, Phase shift keying, Transmitters, Modulators, Polarization, Tolerancing, Quadrature amplitude modulation, Digital signal processing, Field programmable gate arrays

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Proceedings Article | 5 March 2010 Paper

Handheld terahertz systems based on telecom technologies

Helmut Roehle, Bernd Sartorius, Dennis Stanze, Roman Dietz, Martin Schell

Proceedings Volume 7601, 76010E (2010) https://doi.org/10.1117/12.840827

KEYWORDS: Antennas, Terahertz radiation, Receivers, Transmitters, Liquids, Indium gallium arsenide, Mirrors, Spectroscopy, Terahertz technology, Fiber lasers

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Proceedings Article | 8 February 2008 Paper

Polymer optical motherboard technology

N. Keil, H. Yao, C. Zawadzki, N. Grote, M. Schell

Proceedings Volume 6899, 689914 (2008) https://doi.org/10.1117/12.762593

KEYWORDS: Polymers, Waveguides, Polymer multimode waveguides, Semiconductor lasers, Integrated optics, Mirrors, Transceivers, Optical fibers, Diodes, Optical filters

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