37 research outputs found
Silicon-Organic Hybrid Platform for Photonic Integrated Circuits
Die vorliegende Arbeit erkundet das technische Potential einer neuen Plattform für hochintegrierte Optik. Diese Plattform kombiniert ausgewählte organische Materialien mit optischen, integrierten Schaltungen der Silizium-Photonik zu silizium-organischen Hybrid-Bauteilen (SOH) mit außergewöhnlichen Eigenschaften, d.h. Eigenschaften, welche Silizium allein nicht besitzt. Es werden Schlüsselkomponenten wie Laser und Modulatoren konzipiert und mit CMOS-basierten Technologien hergestellt
Detection or modulation at 35 Gbit/s with a standard CMOS-processed optical waveguide
Light modulation and detection within a single SOI waveguide is demonstrated at 1550 nm. Multi-functional devices allow simplified transceiver systems. Savings in the number of fabrication steps increase the yield and reduce costs
High-speed, low drive-voltage silicon-organic hybrid modulator based on a binary-chromophore electro-optic material
We report on the hybrid integration of silicon-on-insulator slot waveguides with organic electro-optic materials. We investigate and compare a polymer composite, a dendron-based material, and a binary-chromophore organic glass (BCOG). A record-high in-device electro-optic coefficient of 230 pm/V is found for the BCOG approach resulting in silicon-organic hybrid Mach-Zehnder modulators that feature low UpL-products of down to 0.52 Vmm and support data rates of up to 40 Gbit/
Quantum interference of biphotons at a blazed grating
Correlations between photons are interesting for a number of applications and
concepts in metrology in particular for resolution improvements in different
methods of quantum imaging. Since Fock-states of N-photons of wavelength lambda
in interference schemes acquire N-times the phase shift of single photons these
states can appear as if they had a de Broglie wavelength of lambda/N. A
biphoton beam diffracted at a blazed grating shows this reduced de Broglie
wavelength. This experiment can be seen as a purification of biphotons of a
certain correlation strength on the one hand. On the other hand the evaluation
of the one-photon and two-photon rate distributions in the Fraunhofer far field
of the grating allows for an analysis of the spatial correlation between the
photons. An experimental demonstration of these ideas tested for a biphoton
beam generated by parametric down conversion (PDC) is reported. We demonstrate
in addition that the existence of higher order spatial modes is important to
observe strong spatial correlations and to observe the photonic de Broglie
wavelength of lambda/2 for biphotons.Comment: 13 pages, 8 figure
Silicon-organic hybrid (SOH) integration and photonic multi-chip systems: Technologies for high-speed optical interconnects
Limitations of silicon photonics can be overcome by hybrid integration of silicon photonic or plasmonic circuits with organic materials or by photonic multi-chip systems. We give an overview on our recent progress regarding both silicon-organic hybrid (SOH) integration and multi-chip integration enabled by photonic wire bonding