169 citations · 369 across the 18 of their papers we have counts for
19 papers
A focusing optical phased array for tissue interrogation with side-lobe suppression and simplified beam steering
Pedram Hosseini, Alireza Tabatabaei Mashayekh, Prachi Agrawal +6
We implement an integrated multi-electrode array on a silicon-nitride-based photonic integrated circuit for ex-vivo retinal characterization via optical stimulation. The interrogat…
Silicon nitride PIC beam formers for light sheet fluorescent microscopy
Alireza Tabatabaei Mashayekh, Jeremy Witzens
Light sheet fluorescence microscopy (LSFM) has transformed the way we visualize biological tissues in three dimensions, offering high-resolution imaging while minimizing photo-indu…
Modeling of an efficient singlet-triplet spin qubit to photon interface assisted by a photonic crystal cavity
Kui Wu, Sebastian Kindel, Thomas Descamps +6
Efficient interconnection between distant semiconductor spin qubits with the help of photonic qubits would offer exciting new prospects for future quantum communication application…
Scalable orthogonal delay-division multiplexed OEO artificial neural network trained for TI-ADC equalization
Andrea Zazzi, Arka Dipta Das, Lukas Hüssen +2
We propose a new signaling scheme for on-chip optical-electrical-optical artificial neural networks that utilizes orthogonal delay-division multiplexing and pilot-tone based self-h…
Silicon Nitride External Cavity Laser with Alignment Tolerant Multi-Mode RSOA-to-PIC Interface
Ibrahim Ghannam, Bin Shen, Florian Merget +1
We demonstrate an external cavity laser formed by combining a silicon nitride photonic integrated circuit with a reflective semiconductor optical amplifier. The laser uses an align…
Monolithic Infrared Silicon Photonics: The Rise of (Si)GeSn Semiconductors
Oussama Moutanabbir, Simone Assali, Xiao Gong +9
(Si)GeSn semiconductors are finally coming of age after a long gestation period. The demonstration of device quality epi-layers and quantum-engineered heterostructures has meant th…
Photonic integrated circuits for life sciences
Jeremy Witzens, Patrick Leisching, Alireza T. Mashayekh +7
We report on the use of silicon nitride (SiN) photonic integrated circuits (PICs) in high-value instrumentation, namely multi-color laser engines (MLEs), a core element of cutting-…
Design of a waveguide-coupled GeSn disk laser
Bahareh Marzban, Jovana Nojic, Daniela Stange +2
We report on the design of a waveguide coupled GeSn microdisk-laser cavity in which the germanium virtual substrate serving as a template for GeSn growth is repurposed for the defi…
Mode-locked laser timing jitter limitation in optically enabled, spectrally sliced ADCs
Andrea Zazzi, Juliana Müller, Sergiy Gudyriev +5
Novel analog-to-digital converter (ADC) architectures are motivated by the demand for rising sampling rates and effective number of bits (ENOB). The main limitation on ENOB in pure…
Silicon Photonics DWDM NLFT Soliton Transmitter
Jonas Koch, Alvaro Moscoso-Mártir, Juliana Müller +3
We investigate the transmission of densely multiplexed solitons using a photonic integrated chip and the nonlinear Fourier-transform and analyze required launch conditions, the eff…
Silicon Photonics DWDM NLFT Soliton Transmitter Implementation and Link Budget Assessment
A. Moscoso-Mártir, J. Koch, J. Müller +3
We analyze the implementation and capabilities of a silicon photonics transmitter capable of modulating and multiplexing groups of four solitons with different frequency and time s…
Semiconductor laser mode locking stabilization with optical feedback from a silicon PIC
Johannes Hauck, Andrea Zazzi, Alexandre Garreau +4
Semiconductor mode-locked lasers can be used in a variety of applications ranging from multi-carrier sources for WDM communication systems to time base references for metrology. Th…
Stabilization and frequency control of a DFB laser with a tunable optical reflector integrated in a Silicon Photonics PIC
Johannes Hauck, Matthias Schrammen, Sebastían Romero-García +5
We investigate the effect of tunable optical feedback on a commercial DFB laser edge coupled to a Silicon Photonics planar integrated circuit in which a tunable reflector has been…
Silicon Photonics WDM Transceiver with SOA and Semiconductor Mode-Locked Laser
Alvaro Moscoso-Mártir, Juliana Müller, Johannes Hauck +18
We demonstrate a complete Silicon Photonics WDM link relying on a single section semiconductor mode-locked laser and a single SOA to support up to 12 multiplexed channels with a bi…
Effect of Electrical Filtering on Level Dependent ASE Noise
Jeremy Witzens
We derive an analytical model describing the effect of filtering on amplified spontaneous emission noise during or after opto-electronic conversion. In particular, we show that ele…
High Speed WDM Interconnect Using Silicon Photonics Ring Modulators and Mode-Locked Laser
Juliana Müller, Johannes Hauck, Alvaro Moscoso-Mártir +6
We demonstrate an 8 by 14 Gbps compatible WDM link based on a single-section semiconductor mode-locked laser, silicon photonics resonant ring modulators and joint channel reamplifi…
Monolithically integrated waveguide-coupled silica microtoroids
Jens Richter, Maziar Pourabdollah Nezhad, Jeremy Witzens
We report on the design and fabrication of a new type of microtoroid high-Q silica resonators monolithically coupled to on-chip silicon nanowire waveguides. In order to enable mono…
High frequency electro-optic measurement of strained silicon racetrack resonators
M. Borghi, M. Mancinelli, F. Merget +5
The observation of the electro-optic effect in strained silicon waveguides has been considered as a direct manifestation of an induced non-linearity in the material. In t…
Edge Couplers with relaxed Alignment Tolerance for Pick-and-Place Hybrid Integration of III-V Lasers with SOI Waveguides
Sebastian Romero-García, Bahareh Marzban, Florian Merget +2
We report on two edge-coupling and power splitting devices for hybrid integration of III-V lasers with sub-micrometric silicon-on-insulator (SOI) waveguides. The proposed devices r…