2D-3D integration of hexagonal boron nitride and a high-κ dielectric for ultrafast graphene-based electro-absorption modulators
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-20926-w
Abstract: Electro-absorption (EA) waveguide-coupled modulators are essential building blocks for on-chip optical communications. Compared to state-of-the-art silicon (Si) devices, graphene-based EA modulators promise smaller footprints, larger temperature stability, cost-effective integration and high speeds. However, combining high… read more here.
Keywords: graphene based; graphene; boron nitride; hexagonal boron ... See more keywords
Differential Drive I/Q Modulator Based on Silicon Photonic Electro-Absorption Modulators
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2020.2978190
Abstract: We demonstrate up to 100 Gbaud quadrature-amplitude modulated (QAM) signal generation with monolithic silicon in-phase quadrature (I/Q)-modulator based on silicon-germanium (SiGe) electro-absorption modulators (EAM). The modulator is in a differentially driven Mach–Zehnder (MZ) interferometric configuration similar to the conventional MZ modulator (MZM)… read more here.
Keywords: modulator; modulator based; absorption modulators; electro absorption ... See more keywords
Polarization-Independent Modulator by Partly Tilted Graphene-Induced Electro-Absorption Effect
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2016.2624747
Abstract: A polarization-independent graphene-based electro-absorption optical modulator concept is presented. The device is based on a slanted silicon stripe upon which two graphene flakes reside; on this surface, another silicon waveguide is capped, forming a rectangular… read more here.
Keywords: polarization independent; modulator; graphene; electro absorption ... See more keywords
100-Gb/s Electro-Absorptive Duobinary Modulation of an InP-on-Si DFB Laser
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2018.2833145
Abstract: 100-Gb/s single-channel optical data communication transceivers can provide a compact and cost-effective solution for the exponentially growing data-center traffic. One of the enabling technologies is electro-absorption-modulated single-mode lasers which are very compact, efficient, and fast.… read more here.
Keywords: 100 electro; electro absorptive; duobinary modulation; absorptive duobinary ... See more keywords
Design and analysis of electro-absorption modulators with uniaxially stressed Ge/SiGe multiple quantum wells.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.010874
Abstract: We propose and analyze theoretically electro-absorption modulators with uniaxially tensile strained Ge/Si0.19Ge0.81 multiple quantum wells (MQWs). The effects of uniaxial strain on band structures including Γ-valley and L-valley are discussed. The simulation results indicate that… read more here.
Keywords: absorption; modulators uniaxially; multiple quantum; absorption modulators ... See more keywords
Chirp management in silicon-graphene electro absorption modulators.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.019371
Abstract: We study the frequency chirp properties of graphene-on-silicon electro-absorption modulators (EAMs). By experimentally measuring the chirp of a 100 µm long single layer graphene EAM, we show that the optoelectronic properties of graphene induce a… read more here.
Keywords: graphene; chirp management; absorption modulators; management silicon ... See more keywords
High-speed Ge/Si electro-absorption optical modulator in C-band operation wavelengths.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.405447
Abstract: We studied a high-speed electro-absorption optical modulator (EAM) of a Ge layer evanescently coupled with a Si waveguide (Si WG) of a lateral pn junction for high-bandwidth optical interconnect. By decreasing the widths of selectively… read more here.
Keywords: absorption optical; speed electro; speed; operation ... See more keywords
Simultaneous frequency response measurement of electro-absorption modulation transceivers based on a self-referenced pilot operation.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.443355
Abstract: An electro-optic method based on a self-referenced pilot operation is proposed for simultaneously characterizing electro-absorption modulation optoelectronic transceivers with a shared setup. Through inserting and extracting the self-referenced pilot, the frequency responses of electro-absorption modulated… read more here.
Keywords: electro absorption; frequency; pilot; frequency response ... See more keywords
80Gb/s NRZ Ge waveguide electro-absorption modulator.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.462890
Abstract: We demonstrate a Ge electro-absorption modulator (EAM) in L band with a 3 dB electro-optical bandwidth beyond 67 GHz at -3 V bias voltage. The Eye diagram measurement shows a data rate of over 80… read more here.
Keywords: electro absorption; device; absorption modulator;
Modeling, analysis, and demonstration of a carrier-injection electro-absorption modulator at 2 µm on Ge-on-Si platform.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.473816
Abstract: In this paper, a carrier-injection electro-absorption modulator (EAM) at 2 µm is demonstrated on Ge-on-Si platform. The EAM shows a compact size and high modulation efficiency due to the strong free-carrier electroabsorption (FCEA) effect in… read more here.
Keywords: injection; electro absorption; carrier; absorption modulator ... See more keywords
Monolithic 1 × 8 DWDM Silicon Optical Transmitter Using an Arrayed-Waveguide Grating and Electro-Absorption Modulators for Switch Fabrics in Intra-Data-Center Interconnects
Sign Up to like & getrecommendations! Published in 2020 at "Micromachines"
DOI: 10.3390/mi11110991
Abstract: In this study, we propose an eight-channel monolithic optical transmitter using silicon electro-absorption modulators (EAMs) based on free-carrier injection by Schottky junctions. The transmitter consists of a 1 × 8 silicon arrayed-waveguide grating (AWG) and… read more here.
Keywords: transmitter; arrayed waveguide; absorption modulators; optical transmitter ... See more keywords