1.4k citations · 4.1k across the 33 of their papers we have counts for
14 papers · 1 filter
Hybrid Electro-Optic Modulator Combining Silicon Photonic Slot Waveguides with High-k Radio-Frequency Slotlines
Sandeep Ummethala, Juned N. Kemal, Ahmed S. Alam +10
Electro-optic (EO) modulators rely on interaction of optical and electrical signals with second-order nonlinear media. For the optical signal, this interaction can be strongly enha…
Silicon-Organic Hybrid (SOH) Mach-Zehnder Modulators for 100 GBd PAM4 Signaling With Sub-1 dB Phase-Shifter Loss
Clemens Kieninger, Christoph Füllner, Heiner Zwickel +8
We report on compact and efficient silicon-organic hybrid (SOH) Mach-Zehnder modulators (MZM) with low phase shifter insertion loss of 0.7 dB. The 280 m-long phase shifters feat…
Hardwire-Configurable Photonic Integrated Circuits Enabled by 3D Nano-Printing
Tobias Hoose, Matthias Blaicher, Juned Nassir Kemal +7
Photonic integrated circuits (PIC) currently rely on application-specific designs that are geared towards a particular functionality. Development of such application-specific PIC r…
A verified equivalent-circuit model for slotwaveguide modulators
Heiner Zwickel, Stefan Singer, Clemens Kieninger +7
We formulate and experimentally validate an equivalent-circuit model based on distributed elements to describe the electric and electro-optic (EO) properties of travellingwave sili…
Coherent WDM transmission using quantum-dash mode-locked laser diodes as multi-wavelength source and local oscillator
Juned N. Kemal, Pablo Marin-Palomo, Vivek Panapakkam +8
Quantum-dash (QD) mode-locked laser diodes (MLLD) lend themselves as chip-scale frequency comb generators for highly scalable wavelength-division multiplexing (WDM) links in future…
Wireless THz link with optoelectronic transmitter and receiver
Tobias Harter, Sandeep Ummethala, Matthias Blaicher +15
Photonics might play a key role in future wireless communication systems that operate at THz carrier frequencies. A prime example is the generation of THz data streams by mixing op…
THz-to-Optical Conversion in Wireless Communications Using an Ultra-Broadband Plasmonic Modulator
Sandeep Ummethala, Tobias Harter, Kira Koehnle +14
Future wireless communication networks have to handle data rates of tens or even hundreds of Gbit/s per link, requiring carrier frequencies in the unallocated terahertz (THz) spect…
Electrically packaged silicon-organic hybrid (SOH) I/Q-modulator for 64 GBd operation
Heiner Zwickel, Juned N. Kemal, Clemens Kieninger +6
Silicon-organic hybrid (SOH) electro-optic (EO) modulators combine small footprint with low operating voltage and hence low power dissipation, thus lending themselves to on-chip in…
3D-Printed Optics for Wafer-Scale Probing
Mareike Trappen, Matthias Blaicher, Philipp-Immanuel Dietrich +5
Mass production of photonic integrated circuits requires high-throughput wafer-level testing. We demonstrate that optical probes equipped with 3D-printed elements allow for efficie…
Demonstration of long-term thermally stable Silicon-Organic Hybrid Modulators at 85 °C
Clemens Kieninger, Yasar Kutuvantavida, Hiroki Miura +8
We report on the first demonstration of long-term thermally stable silicon-organic hybrid (SOH) modulators in accordance with Telcordia standards of high-temperature storage. The d…
Hybrid integration of silicon photonics circuits and InP lasers by photonic wire bonding
Muhammad Rodlin Billah, Matthias Blaicher, Tobias Hoose +10
Efficient coupling of III-V light sources to silicon photonic circuits is one of the key challenges of integrated optics. Important requirements are low coupling losses, as well as…
In-Situ 3D Nano-Printing of Freeform Coupling Elements for Hybrid Photonic Integration
P. -I. Dietrich, M. Blaicher, I. Reuter +9
Hybrid photonic integration exploits complementary strengths of different material platforms, thereby offering superior performance and design flexibility in comparison to monolith…
Silicon-Organic Hybrid (SOH) Mach-Zehnder Modulators for 100 Gbit/s On-Off Keying
Stefan Wolf, Heiner Zwickel, Wladislaw Hartmann +10
Electro-optic modulators for high-speed on-off keying (OOK) are key components of short- and mediumreach interconnects in data-center networks. Besides small footprint and cost-eff…
Ultra-High Electro-Optic Activity Demonstrated in a Silicon-Organic Hybrid (SOH) Modulator
Clemens Kieninger, Yasar Kutuvantavida, Delwin L. Elder +9
Efficient electro-optic (EO) modulators crucially rely on advanced materials that exhibit strong electro-optic activity and that can be integrated into high-speed and efficient pha…