The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We present data for long-haul, metro, and data-center applications using large scale Photonic Integrated Circuits (PICs) packaged in high capacity optical modules.
Silicon photonics offers great opportunities to replace the bulky free-space systems with compact, highly integrated ones. However, dedicated optimization work is required to realize high performance systems for practical applications. This talk presents a library of optimized photonic components and a high-performance system as example.
Integration of III-nitride light emitting diodes (LEDs) and Schottky barrier diodes (SBDs) have been proposed for various applications, such as electrostatic discharge (ESD) protection and alternating current-LEDs (AC-LEDs) with on-chip bridge rectifiers. Nevertheless, it is generally perceived that the dry etching-induced nitrogen vacancies in GaN lattice render a high surface concentration of defect...
Aurrion heterogeneous platform combines best-in-class active III–V materials for lasers, modulators and photodetectors with advanced passive components on a single chip. By leveraging existing silicon industry infrastructure for manufacturing and packaging, low-cost photonics can be closely integrated with electronics in system-in-package solutions. Such solutions are well suited to meet the demands...
We demonstrate 16.2 dB gain in a high-linearity 20 GHz IM/DD analog photonic link by utilizing a quadrature-biased dual-output Mach-Zehnder modulator and a high-power balanced photodiode.
A single-mode Tm/Ho co-doped mode-locked fiber laser that is directly core-pumped with 790 nm pump light is presented. In a short gain fiber cavity, femtosecond pulses at a repetition rate of 135 MHz are demonstrated.
The existence of moving Bragg grating solitons, their stability and various outcomes of collisions in a semilinear dual-core system in the presence of dispersive reflectivity are investigated.
Phototransistors built this way offer a low-capacitance, high-speed integrated solution for receivers, with decoupled absorption and amplification regions. Having the first stage of gain directly integrated with the absorption region of the transistor means that the sensitivity of the device can be greatly increased, thanks to it's low capacitance and high gain. Furthermore the fabrication of such...
We have developed a technological platform that can be used for remote sensing of nano-vibrations which can be used for biomedical parameters estimation as well as for establishing a directional communication channel. The technology is based upon illuminating a surface with a laser and then using an imaging camera to perform temporal and spatial tracking of secondary speckle patterns in order to have...
We propose a new all-dielectric optical antenna structure with the control of its radiation direction by adjusting its geometrical parameters. As a proof, we experimentally demonstrate the dielectric optical antenna radiating in the broadside.
We propose a globally traffic-aware passband assignment algorithm to satisfy signal integrity requirements in elastic optical networks. We implement our solution in an SDN-enabled testbed and demonstrate successful performance with DQPSK and OFDM modulation formats.
We characterized a dipole response with an inner shell induced by an isolated attosecond pulse. We reconstruct the dipole response from the spectral interferogram constructed with two fields of electromagnetic radiation in a neon atom.
The potential of the device is demonstrated through the results of a micro-bead counting experiment. A 0.5 µl sample volume containing 10 µm polystyrene micro-beads in Dl water is deposited into an on-chip inlet reservoir from where it flows, under capillary action, through a buried flow cell. A laser on one side of the cell is forward biased and the opposing laser is operated as a photodiode (Fig...
SPAD arrays for visible imaging are analyzed in order to assess the gain of performances with a 3D integration process. A practical example is given with the available design kit of a two layer technology.
We reported special variations of optical spectrum of soliton pairs in a passively mode-locked erbium-doped fiber laser by adjusting the polarization controller with pump power fixed, which indicates different time separations within soliton pairs.
An add-drop filter with asymmetric coupling to bus waveguides, cascaded with a notch filter, enables non-reciprocal data transmission through direction dependent resonance shift. Strong dispersion and attenuation near resonance allows one-way 10 Gbps data transmission.
A broadband and high-power water window soft x-ray source based on laser-produced high-Z plasmas has a great potential for bio-nanoimaging technologies. Here, we characterized the feature of multiply ionized Au, Pb and Bi plasmas.
Exploration of the interplay between gain and loss in optical metamaterials can lead to novel device functionalities. Here we demonstrate a single-mode laser with unique cavity mode manipulation capability based on thresholdless parity-time symmetry breaking.
Previously, we demonstrated that recovery of image blurred by phase aberration [1] and atmospheric turbulence [2] through optical phase conjugate beams generated by difference-frequency generation. In Refs. [1,2], the images were restored by the phase-conjugation in the transmission configuration. Based on such a scheme, the image system overcomes the disadvantages which were suffered in the past,...
Proroposed receiver for zero padded OFDM combines single-tap equalizer and successive interference cancellation (SIC) detection. Numerical simulations on MMF links show that the proposed scheme reach of 33.9 Gb/s in a 600 m link, saving more than 75% of computational complexity respect original SIC receiver.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.