Zobrazeno 1 - 10
of 136
pro vyhledávání: '"D. Trommer"'
Autor:
Manuel Romero, D. Trommer, Aldo Steinfeld, M. Fasciana, A. Morales, D. Rodriguez, Fabrizio Noembrini
Publikováno v:
International Journal of Hydrogen Energy. 30:605-618
The steam-gasification of petroleum coke using concentrated solar radiation as the source of high-temperature process heat is proposed as a viable transition path towards solar hydrogen production. The advantages are three-fold: (1) the calorific val
Publikováno v:
International Journal of Hydrogen Energy. 29:627-633
The kinetics of the thermal decomposition of CH4 for co-producing H2 and carbon black are examined for a vortex flow confined to a cavity receiver and directly exposed to mean radiative power fluxes of 2500 kW / m 2 . The CH4 flow is laden with carbo
Publikováno v:
OFC
We demonstrate a balanced 80GHz pin-photodetector chip with excellent responsivity, dark current and polarisation dependent loss. The device focuses on next generation optical networks with 56/64Gbaud and operates in C-band and L-band.
Autor:
Andreas G. Steffan, S. Fedderwitz, Efthymios Rouvalis, G. Unterborsch, Jens Stephan, Philipp Muller, D. Trommer
Publikováno v:
OFC
We demonstrate a high-responsivity (0.52 A/W) and high-linearity 50 GHz photodiode module based on an MMI-Splitter and a 4×PD-Array with +3.5 dBm RF-power at 50 GHz and an OIP3 of >25 dBm at 40 GHz.
Publikováno v:
Optical and Quantum Electronics. 33:1101-1112
High-speed, high-power photodetectors are required in 40 Gbit/s front-ends as well as for optic/millimeterwave-conversion in 60 GHz broadband mobile systems. The demand for a high bandwidth maintained up to high power levels is fulfilled by waveguide
Publikováno v:
Microelectronic Engineering. 53:577-580
The fabrication of integrated spot size converters employing standard contact photolithography in a novel way and dry etching technique is presented. During the exposure the mask is shifted parallel to the substrates surface. Exploiting the graduatio
Autor:
Stefan Schubert, D. Trommer, Patrick Runge, A. Seeger, K. Janiak, M. Lonstrup Nielsen, Jens Stephan, T. Gartner
Publikováno v:
2013 International Conference on Indium Phosphide and Related Materials (IPRM).
We demonstrate a monolithically integrated quadrature coherent receiver photonic integrated circuit (PIC) on an InP substrate with a 90° optical hybrid, a variable optical attenuator (VOA) and four pin-photodetectors. With an attenuation of more tha
Publikováno v:
Optical and Quantum Electronics. 28:565-573
The state of the art in the fabrication of heterodyne receiver photonic integrated circuits (PICs) is described and in particular the results and experiences of the first fabrication of polarization-insensitive heterodyne receiver PICs are emphasized
Autor:
Jens Stephan, Stefan Schubert, A. Seeger, Patrick Runge, Patrick Domburg, K. Janiak, D. Trommer, Mads Lønstrup Nielsen
Publikováno v:
Optics express. 20(26)
We demonstrate a monolithically integrated quadrature coherent receiver photonic integrated circuit on an InP substrate with a 90° optical hybrid and two balanced 56 GHz pin-photodetectors on chip level and as a packaged device. The presented device
Autor:
K. Janiak, Stefan Schubert, Jens Stephan, Patrick Runge, D. Trommer, Andreas Matiss, A. Seeger
Publikováno v:
European Conference and Exhibition on Optical Communication.
We demonstrate a monolithically integrated quadrature coherent receiver PIC on an InP substrate with a 90° optical hybrid and two balanced 56GHz pin-photodetectors. The presented devices enable the use of 56/64Gbaud 16-QAM signals either in the C-ba