A. Ehrhardt

825 citations

57 papers · 566 indexed · h-index 15

Impact in

Electrical and Electronic Engineering top 10%
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Advanced Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Optic Sensors
Atomic and Molecular Physics, and Optics top 10%
- Advanced Fiber Laser Technologies
- Semiconductor Quantum Structures and Devices

Papers in ⓘ

Electrical and Electronic Engineering 54
- Optical Network Technologies 49
- Advanced Photonic Communication Systems 29
- Advanced Optical Network Technologies 26
- Semiconductor Lasers and Optical Devices 20
- Photonic and Optical Devices 18
- solar cell performance optimization 2
Atomic and Molecular Physics, and Optics 8
- Advanced Fiber Laser Technologies 4
- Semiconductor Quantum Structures and Devices 3

Co-authors: R. Ludwig (12 shared papers)U. Feiste (5 shared papers)H.G. Weber (12 shared papers)W. Pieper (8 shared papers)D. J. As (1 shared paper)Michael Eiselt (6 shared papers)L. Küller (4 shared papers)R. Schnabel (4 shared papers)
Journals: Electronics Letters (5 papers)Journal of Lightwave Technology (3 papers)IEICE Transactions on Electronics (1 paper)Proceedings of the IEEE (1 paper)IEEE Photonics Technology Letters (1 paper)
Partner nations: Germany United Kingdom China

In The Last Decade

A. Ehrhardt

50 papers receiving 529 citations

Peers

Countries citing papers authored by A. Ehrhardt

Since Specialization

Citations

This map shows the geographic impact of A. Ehrhardt's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by A. Ehrhardt with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. Ehrhardt more than expected).

Fields of papers citing papers by A. Ehrhardt

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. Ehrhardt. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by A. Ehrhardt. The network helps show where A. Ehrhardt may publish in the future.

Co-authors

The 25 scholars most cited alongside A. Ehrhardt, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with A. Ehrhardt Line = papers co-authored together A. Ehrhardt links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 57 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	18 GHz all-optical frequency locking and clock recovery using a self-pulsating two-section DFB-laser IEEE Photonics Technology Letters ·U. Feiste, D. J. As, A. Ehrhardt	1994	59
2	Turn-key-ready wavelength-, repetition rate- andpulsewidth-tunablefemtosecond hybrid modelocked semiconductor laser Electronics Letters ·R. Ludwig, A. Ehrhardt	1995	59
3	Semiconductor laser amplifier as optical switching gate Journal of Lightwave Technology ·A. Ehrhardt, Michael Eiselt, G. Grossopf, L. Küller, R. Ludwig, W. Pieper, R. Schnabel, H.G. Weber	1993	45
4	40 Gbit/s demultiplexing experiment with 10 GHzall-optical clockrecovery using a modelocked semiconductor laser Electronics Letters ·R. Ludwig, A. Ehrhardt, W. Pieper, E. Jahn, Nidhi Agrawal, H.J. Ehrke, L. Küller, H.G. Weber	1996	44
5	Wavelength conversion and switching of high speed data signals using semiconductor laser amplifiers Electronics Letters ·R. Schnabel, W. Pieper, A. Ehrhardt, Michael Eiselt, H. Weber	1993	30
6	A Tunable Femtosecond Modelocked Semiconductor Laser for Applications in OTDM-Systems IEICE Transactions on Electronics ·R. Ludwig, Stefan Diez, A. Ehrhardt, L. Küller, Wilhelm Pieper, H. Weber	1998	29
7	Automatic PMD compensation at 40 Gbit/s and 80 Gbit/s using a 3-dimensional DOP evaluation for feedback Harald Rosenfeldt, Ch. Knothe, R. Ulrich, E. Brinkmeyer, U. Feiste, Colja Schubert, J. Berger, R. Ludwig, H.G. Weber, A. Ehrhardt	2002	29
8	Feedforward approach for automatic PMD-compensation at 80 Gbit/s over 45 km installed single mode fiber Harald Rosenfeldt, R. Ulrich, E. Brinkmeyer, U. Feiste, Colja Schubert, J. Berger, R. Ludwig, H.G. Weber, A. Ehrhardt	2002	21
9	Automatic PMD compensator in a 160-Gb/s OTDM transmission over deployed fiber using RZ-DPSK modulation format Journal of Lightwave Technology ·Sven Kieckbusch, S. Ferber, Harald Rosenfeldt, R. Ludwig, C. Boerner, A. Ehrhardt, E. Brinkmeyer, H.G. Weber	2005	21
10	Evolution of Terrestrial Optical System and Core Network Architecture Proceedings of the IEEE ·Andreas Gladisch, Ralf-Peter Braun, D. Breuer, A. Ehrhardt, H.-M. Foisel, (unknown), R. Leppla, M. Schneiders, S. Vorbeck, W. Weiershausen, Fritz-Joachim Westphal	2006	20
11	PMD compensation in 10 Gbit/s NRZ field experimentusing polarimetric error signal Electronics Letters ·Harald Rosenfeldt, R. Ulrich, U. Feiste, R. Ludwig, H.G. Weber, A. Ehrhardt	2000	19
12	Extension of all-optical network-transparent domains based on normalized transmission sections Journal of Lightwave Technology ·Norbert Hanik, A. Ehrhardt, Andreas Gladisch, Christophe Peucheret, P. Jeppesen, L. Molle, Ronald Freund, C. Caspar	2004	19
13	Transient photoluminescence decay study of minority carrier lifetime in GaAs heteroface solar cell structures Applied Physics A ·A. Ehrhardt, W. Wettling, Alexander J. Bett	1991	19
14	Automatic PMD Compensation at 40 Gbit/s and 80 Gbit/s Using a 3-Dimensional DOP Evaluation for Feedback Optical Fiber Communication Conference and International Conference on Quantum Information ·Harald Rosenfeldt, Ch. Knothe, R. Ulrich, E. Brinkmeyer, U. Feiste, Colja Schubert, J. Berger, R. Ludwig, H.G. Weber, A. Ehrhardt	2001	15
15	Investigation of crosstalk interference in a fibreloop optical buffer Electronics Letters ·W. Pieper, Michael Eiselt, G. Großkopf, R. Langenhorst, A. Ehrhardt, H.G. Weber	1994	14
16	Nonlinear behaviour of 112 Gb/s polarisation-multiplexed RZ-DQPSK with direct detection in a 630 km field trial H. Wernz, S. Herbst, S. Bayer, Helmut Grießer, Emiliano R. Martins, C. Fürst, Benjamin Koch, V. Mirvoda, R. Noé, A. Ehrhardt, L. Schurer, S. Vorbeck, M. Schneiders, D. Breuer, Ralf-Peter Braun	2009	10
17	PON measurements and monitoring solutions for FTTH networks during deployment and operation A. Ehrhardt, F. Escher, L. Schurer, H.-M. Foisel, A. Templin, Mirko Adamy, Christian Gerlach	2011	10
18	Field Trial Investigation of 16-states MLSE Equalizer for Simultaneous Compensation of CD, PMD and SPM D. Fritzsche, L. Schurer, A. Ehrhardt, D. Breuer, Hamdi Oeruen, Christian G. Schäffer	2009	9
19	Adaptive PMD compensator in 160 Gb/s DPSK transmission over installed fiber Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) ·Sven Kieckbusch, S. Ferber, Harald Rosenfeldt, R. Ludwig, C. Boerner, A. Ehrhardt, E. Brinkmeyer, H. Weber	2004	8
20	512-Gb/s DP-16-QAM Field Trial over 734 km Installed SSMF with Co-Propagating 10 Gb/s NRZ Neighbors Incorporating Soft-FEC Decoding Optical Fiber Communication Conference ·Fred Buchali, Karsten Schuh, D. Rosener, E. Lach, Roman Dischler, W. Idler, Laurent Schmalen, A. Leven, Ralf-Peter Braun, A. Ehrhardt, Christoph Gerlach, L. Schurer	2012	8

About A. Ehrhardt

A. Ehrhardt is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Computer Networks and Communications, Information Systems and Instrumentation, having authored 57 papers that have together received 566 indexed citations. Recurring topics across this work include Optical Network Technologies (49 papers), Advanced Photonic Communication Systems (29 papers), Advanced Optical Network Technologies (26 papers), Semiconductor Lasers and Optical Devices (20 papers), Photonic and Optical Devices (18 papers), Advanced Fiber Laser Technologies (4 papers), Semiconductor Quantum Structures and Devices (3 papers) and solar cell performance optimization (2 papers). The work is most often cited by research in Electrical and Electronic Engineering (550 citations), Atomic and Molecular Physics, and Optics (219 citations), Computer Networks and Communications (17 citations), Statistical and Nonlinear Physics (6 citations) and Biomedical Engineering (13 citations). A. Ehrhardt has collaborated with scholars based in Germany, United Kingdom and China. Frequent co-authors include R. Ludwig, U. Feiste, H.G. Weber, W. Pieper, D. J. As, Michael Eiselt, L. Küller, R. Schnabel, H. Weber and E. Brinkmeyer. Their work appears in journals such as Electronics Letters, Journal of Lightwave Technology, IEICE Transactions on Electronics, Proceedings of the IEEE and IEEE Photonics Technology Letters.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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