J.C. Geyer

Cisco Systems (United States) — United States

Engineering · Physical Sciences

14h-index793citations28works5.02yr avg
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Research Topics

Optical Network Technologies(27), Photonic and Optical Devices(20), Advanced Photonic Communication Systems(19), Semiconductor Lasers and Optical Devices(9), Advanced Optical Network Technologies(2)

Publications28 total

Real-Time 1.2Tb/s Large Capacity DCI Transmission
2024· 5 cited
Real-time Transmission of Single-Carrier 400 Gb/s and 600 Gb/s 64QAM over 200km-Span Link
2019· 17 cited
High Performance Coherent ASIC
2018· 5 cited
Real-time transmission of 16 Tb/s over 1020km using 200Gb/s CFP2-DCO
Optics Express·2018· 16 citedOpen Access
O, E, S, C, and L Band Silicon Photonics Coherent Modulator/Receiver
2016· 46 cited
Silicon Photonics for 100G-and-beyond Coherent Transmissions
Optical Fiber Communication Conference·2016· 22 cited
Practical Implementation of Higher Order Modulation Beyond 16-QAM
Optical Fiber Communication Conference·2015· 30 cited
Real-time DSP for 100+ Gb/s
2013· 15 cited
DWDM Transmission of 70 100Gb/s CP-DQPSK Channels over 2000km of Uncompensated SMF with Real-Time DSP and Coherent Channel Selection
2012· 3 cited
DAC Enabled Spectrally Efficient CP-QPSK at 28Gbaud
2012· 8 cited
Integrated circuits for coherent transceivers for 100G and beyond
Optical Fiber Technology·2011· 4 cited
Simple automatic nonlinear compensation with low complexity for implementation in coherent receivers
2010· 5 cited
QPSK transmitter characterization and reconstruction of optical field by 1 symbol delayed self-homodyne detection
2010· 2 cited
Digital Signal processing — from simulation to silicon
2010· 5 cited
Optimization of the Chromatic Dispersion Equalizer of a 43Gb/s Realtime Coherent Receiver
Optical Fiber Communication Conference·2010· 4 cited
Real-time Prototypes for Digital Coherent Receivers
Optical Fiber Communication Conference·2010· 6 cited
Efficient Frequency Domain Chromatic Dispersion Compensation in a Coherent Polmux QPSK-Receiver
Optical Fiber Communication Conference·2010· 22 cited
Digital Signal Processing for the Realisation of 40 and 100G CP-QPSK Transponders
2010
43Gb/s CP-QPSK Realtime Receiver Demonstrator based on FPGAs and block-processing
European Conference on Optical Communication·2009· 5 cited
Laser Linewidth Estimation by Means of Coherent Detection
IEEE Photonics Technology Letters·2009· 37 cited
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Frequent Co-authors

T. Duthel(19), C. Schulien(17), C.R.S. Fludger(16), C. Rasmussen(7), Bernhard Schmauß(7), B. Mikkelsen(5), M. Aydinlik(5), D. van den Borne(4), E.-D. Schmidt(4), Ricardo Aroca(4), Tilman Pfau(4), C. R. Doerr(3), Stefan Wiese(3), Fabian N. Hauske(3), M. Kuschnerov(3), K. Piyawanno(3), Bernhard Spinnler(3), Berthold Lankl(3), Nishaanthan Nadarajah(3), Chris Fludger(3)