Cleitus Antony
YOU?
Author Swipe
View article: Half duplex transmission with asymmetric surface normal electro absorption modulator-based optical transceiver for camera-on-tip surgical endoscopes
Half duplex transmission with asymmetric surface normal electro absorption modulator-based optical transceiver for camera-on-tip surgical endoscopes Open
Emerging camera-on-tip surgical endoscopes supporting hyperspectral imaging with high frame rates to minimize motion artifacts will require alternatives to conventional read-out electrical wiring. We propose an optical communication link u…
View article: SOA-based optical burst power equalization for high-speed next generation passive optical networks
SOA-based optical burst power equalization for high-speed next generation passive optical networks Open
Research on passive optical networks (PONs) capable of reaching speeds of 100 Gb/s per wavelength and beyond has become critical in recent years. One cost-effective solution is 4-level pulse amplitude modulation (PAM4), which utilizes affo…
View article: Aerobars Position Effect: What is the Interaction Between Aerodynamic Drag and Power Production?
Aerobars Position Effect: What is the Interaction Between Aerodynamic Drag and Power Production? Open
Extensive research has been dedicated to optimizing the cyclist's position on the bike to enhance aerodynamic performance. This study aims to further investigate the aerobars position effect on cycling speed. Drawing from previous work (Fi…
View article: Development of Electrical and Optical Packaging for Silicon Photonic MEMS
Development of Electrical and Optical Packaging for Silicon Photonic MEMS Open
We demonstrate a packaging approach to integrate electrical and optical connections in silicon photonic MEMS, utilizing a custom-designed silicon interposer for routing over 118 electrical connections and a 72 channel fiber array to couple…
View article: Micro-transfer printed high-speed InP-based electro-absorption modulator on silicon-on-insulator
Micro-transfer printed high-speed InP-based electro-absorption modulator on silicon-on-insulator Open
A high-speed InP-based electro-absorption modulator (EAM) on 220 nm silicon-on-insulator (SOI) is designed, fabricated, and measured. The III–V device is heterogeneously integrated to the SOI using transfer printing, with direct bonding. T…
View article: SkipNet: an adaptive neural network equalization algorithm for future passive optical networking
SkipNet: an adaptive neural network equalization algorithm for future passive optical networking Open
In this paper, we propose an original adaptive neural network equalizer (NNE) algorithm named SkipNet, which is suitable for rapid training on a packet-by-packet basis for burst-mode non-linear equalization in upstream PON transmission. Sk…
View article: Integrated Comb Laser With Active De-Multiplexer for Spectrally Sliced Coherent Receiver
Integrated Comb Laser With Active De-Multiplexer for Spectrally Sliced Coherent Receiver Open
Spectrally-sliced coherent receivers (SSRx) are potentially attractive for future high-speed access networks, as they allow the use of low-cost, low-bandwidth commodity components with minimal impact on performance. In this letter, we pres…
View article: Building general-purpose programmable photonic chips: opportunities and challenges
Building general-purpose programmable photonic chips: opportunities and challenges Open
Photonic chips are becoming increasingly complex, combining even more optical building blocks on the same chip. With this growing complexity we also see an expanding need for, and use of electrical tuning. This imposes opportunities, as ph…
View article: 100 Gbps PAM4 ultra-thin photodetectors integrated on SOI platform by micro transfer printing
100 Gbps PAM4 ultra-thin photodetectors integrated on SOI platform by micro transfer printing Open
The integration of compact high-bandwidth III-V active devices in a scalable manner is highly significant for Silicon-on-insulator (SOI) photonic integrated circuits. To address this, we demonstrate the integration of pre-fabricated 21 × 5…
View article: Low-power actuators for programmable photonic processors
Low-power actuators for programmable photonic processors Open
The demand for efficient actuators in photonics has peaked with increasing popularity for large-scale general-purpose programmable photonics circuits. We present our work to enhance an established silicon photonics platform with low-power …
View article: Spectrally-Sliced Coherent Receiver Utilizing a Gain-Switched Optical Frequency Comb
Spectrally-Sliced Coherent Receiver Utilizing a Gain-Switched Optical Frequency Comb Open
The spectrally-sliced coherent receiver is an attractive solution for future optical access network applications where cost is a sensitive factor, as it enables reduced bandwidth of the analog front-end components and analog-to-digital con…
View article: Scaling programmable silicon photonics circuits
Scaling programmable silicon photonics circuits Open
We give an overview the progress of our work in silicon photonic programmable circuits, covering the technology stack from the photonic chip over the driver electronics, packaging technologies all the way to the software layers. On the pho…
View article: High Dynamic Range 100G PON Enabled by SOA Preamplifier and Recurrent Neural Networks
High Dynamic Range 100G PON Enabled by SOA Preamplifier and Recurrent Neural Networks Open
In recent years the PON research community has focused on future systems targeting 100 Gb/s/ and beyond, with digital signal processing seen as a key enabling technology. Spectrally efficient 4-level pulse amplitude modulation (PAM4) is s…
View article: A MEMS tunable phase monitor with integrated photodiode read-out for silicon photonic circuits
A MEMS tunable phase monitor with integrated photodiode read-out for silicon photonic circuits Open
Electrostatic MEMS provide low power consumption to programmable photonics. However, the scaling of programmable photonics also requires solutions for circuit monitoring. We demonstrate a MEMS tunable phase monitor with integrated read-out…
View article: Vacuum-sealed silicon photonic MEMS tunable ring resonator with an independent control over coupling and phase
Vacuum-sealed silicon photonic MEMS tunable ring resonator with an independent control over coupling and phase Open
Ring resonators are a vital element for filters, optical delay lines, or sensors in silicon photonics. However, reconfigurable ring resonators with low-power consumption are not available in foundries today. We demonstrate an add-drop ring…
View article: A 7-Bit 7-GHz Multiphase Interpolator-Based DPC for CDR Applications
A 7-Bit 7-GHz Multiphase Interpolator-Based DPC for CDR Applications Open
This paper presents a 7-bit digital to phase converter (DPC) for high speed clock and data recovery (CDR) applications which is capable of generating multi-phase clocks at 7-GHz frequency. Fabricated in a standard 65-nm CMOS technology, th…
View article: Software Framework Architecture for Programmable Photonic Chips
Software Framework Architecture for Programmable Photonic Chips Open
We introduce a software framework for design and programming of large scale programmable photonic chips. The framework facilitates design, simulation, configuration and measurements of reconfigurable waveguide meshes, managing hundreds of …
View article: MORPHIC: MEMS enhanced silicon photonics for programmable photonics
MORPHIC: MEMS enhanced silicon photonics for programmable photonics Open
We present our work in the European project MORPHIC to extend an established silicon photonics platform with low-power and non-volatile micro-electromechanical (MEMS) actuators to demonstrate large-scale programmable photonic integrated ci…
View article: Predistortion for High-Speed Lumped Silicon Photonic Mach-Zehnder Modulators
Predistortion for High-Speed Lumped Silicon Photonic Mach-Zehnder Modulators Open
The use of electrical precompensation for high-speed operation of lumped MZMs is demonstrated for 50 Gb/s PAM4 modulation through experiment and simulation. An accurate equivalent circuit model is fitted to S11 measurements and then used t…
View article: Programmable silicon photonic circuits powered by MEMS
Programmable silicon photonic circuits powered by MEMS Open
We present our work to extend silicon photonics with MEMS actuators to enable low-power, large scale programmable photonic circuits. For this, we start from the existing iSiPP50G silicon photonics platform of IMEC, where we add free-standi…
View article: A Bistable Silicon Photonic Mems Phase Switch For Nonvolatile Photonic Circuits
A Bistable Silicon Photonic Mems Phase Switch For Nonvolatile Photonic Circuits Open
Silicon photonic circuits are rapidly growing in complexity and spreading to new applications. However, programmable circuits consume much power and require active electrical interfaces. For the first time, we demonstrate a nonvolatile pho…
View article: Programmable Photonic Circuits using Silicon Photonic MEMS
Programmable Photonic Circuits using Silicon Photonic MEMS Open
We present a silicon photonics technology extended with low-power MEMS scalable to large circuits. This enables us to make photonic waveguide meshes that can be reconfigured using electronics and software.
View article: Robust Channel Estimation for Coherent Optical Orthogonal Chirp-Division Multiplexing With Pulse Compression and Noise Rejection
Robust Channel Estimation for Coherent Optical Orthogonal Chirp-Division Multiplexing With Pulse Compression and Noise Rejection Open
Orthogonal chirp-division multiplexing (OCDM) was recently proposed as a promising modulation technique for high-speed fiber-optic communications due to its resilience to transmission impairments. By exploiting the pulse-compression proper…
View article: Point-to-point overlay of a 100Gb/s DP-QPSK channel in LR-PONs for urban and rural areas
Point-to-point overlay of a 100Gb/s DP-QPSK channel in LR-PONs for urban and rural areas Open
The continuing growth in information demand from fixed and mobile end-users, coupled with the need to deliver this content in an economically viable manner, is driving new innovations in access networks. In particular, it is becoming incre…
View article: Optimization of PAM-4 transmitters based on lumped silicon photonic MZMs for high-speed short-reach optical links
Optimization of PAM-4 transmitters based on lumped silicon photonic MZMs for high-speed short-reach optical links Open
We demonstrate how to optimize the performance of PAM-4 transmitters based on lumped Silicon Photonic Mach-Zehnder Modulators (MZMs) for short-reach optical links. Firstly, we analyze the trade-off that occurs between extinction ratio and …
View article: 25Gb/s PAM4 Burst-Mode System for Upstream Transmission in Passive Optical Networks
25Gb/s PAM4 Burst-Mode System for Upstream Transmission in Passive Optical Networks Open
A 25Gb/s PAM4 burst-mode upstream transmission is demonstrated over 25km of fiber using 10G components and a linear burst-mode TIA with a 14.7dB dynamic range and with differential chromatic dispersion equivalent to 25km of fiber.
View article: Discrete Fresnel Transform and Its Circular Convolution
Discrete Fresnel Transform and Its Circular Convolution Open
Discrete trigonometric transformations, such as the discrete Fourier and cosine/sine transforms, are important in a variety of applications due to their useful properties. For example, one well-known property is the convolution theorem for…