Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"Photonic integration"”.
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Monolithic electronic-photonic integration of the light-emitting transistor
… a simple and efficient way for monolithic photonic-electronic integration. In addition, a novel hybrid-LET is designed to include the DC and AC regulator to give good impedance matching, high-speed optical modulation and low power. As the hybrid-LET is a compact one-chip solution with low …
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Germanium photodetectors on amorphous substrates for electronic-photonic integration
Silicon photonics has emerged as a leading technology to overcome the bandwidth and energy efficiency bottlenecks of standard metal interconnects. Integration of photonics in the back-end-of-line (BEOL) of a standard CMOS process enables the advantages of optical interconnects while benefiting from …
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Advanced materials, process, and designs for silicon photonic integration
… interconnect is based on integrated silicon nanophotonic technologies. It can leverage the large scale and low cost of CMOS technology and deliver higher bandwidth with no EMI and low heat dissipation. Passive photonic component, such as waveguides, couplers, filters, splitters, are the backbone …
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Photonic integration of electron-nuclear spin systems in semiconductor quantum dots
… bright sources of single photons suitable for photonic integration. This makes them a promising platform for quantum information processing. One approach to quantum computing is based on the measurement of multidimensional photonic cluster states. These are states of highly entangled photons, …
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Monolithic electronic-photonic integration in state-of-the-art CMOS processes
… the major bottleneck within modern processors. Photonic devices promise to break this bottleneck with superior bandwidth-density and energy-efficiency. Initial work by many research groups to adapt photonic device designs to a silicon-based material platform demonstrated suitable independent …
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Photonic integration of divacancy color centers in silicon carbide and heterogeneous integration of lithium niobate on III-V/Si substrates
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Analysis and characterization of slab-coupled optical waveguide amplifiers and lasers
… optical devices are important in the photonics industry due to their significant advantages in size, weight, and power consumption (SWAP) and to their capability for photonic integration. However, these devices traditionally suffer from low fiber coupling efficiency and have been …
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Photonic integrated circuit for the manipulation of coherent optical combs
Photonic integration has become an important research topic in research for applications in the telecommunications industry. Current optical internet infrastructure has reached capacity with current generation dense wavelength division multiplexing (DWDM) systems fully occupying the low absorption …
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Signal modulation and relative intensity noise properties of transistor laser and nano-cavity VCSEL
… provide TL intrinsic advantages for electronic/photonic integration. Due to the better optical cavity Q, shorter optical cavity length and smaller device parasitics, the vertical cavity transistor laser (VCTL) can in principle provide better performance than the edge-emitting TL. We have …
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Toward accurate and large-scale silicon photonics
Silicon photonics, emerging from the interface of silicon technology and photonic technology, is expected to inherit the incredible integration ability of silicon technology that has boomed the microelectronic industry for half a century, as well as the unparalleled communication capability of …
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Concentric Microresonators Design For Dispersion Engineering and Scalable Electron-Beam Lithography for Si and SiN Photonic Platforms
Silicon (Si) and silicon nitride (SiN) photonic integrated circuits (PICs) are vital platforms for compact, low-loss, and scalable optical systems. In most PIC applications, waveguides, microresonators, and subwavelength gratings (SWGs) serve as the fundamental building blocks for realizing diverse …
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Dielectric micro-cavity surface-emitting lasers
… large potential in the next-generation dense photonic integration and optical interconnects. However, the absorption loss in the metal fundamentally impedes the practical use of metal-cavity nano-lasers, as most of the demonstrated devices could only work either under optical pumping or at 77 …
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Methodology and applications of topology optimization in nanophotonics
As photonic integrated circuits are becoming more diverse in functionality and compact in size, the traditional design approach based on physical intuition becomes limited. There is a great interest in the research and development of inverse design for nanophotonics as it can surpass the …
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Multi-layer, Low-crosstalk Integrated Optical Switches
… as 2.1 dB) while enabling scalable, high-density photonic integration. Two distinct implementations: a thermo-optic microring resonator (MRR)-based 8×8 switch and an electro-optic microdisk switch are demonstrated, both leveraging the tri-layer platform to achieve >70 GHz bandwidth and …
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Attosecond timing jitter modelocked lasers and ultralow phase noise photonic microwave oscillators
Photonic microwave oscillator based on optical frequency comb and ultrastable optical reference cavity represents the state-of-the-art solution to generate X-band microwaves of ultralow phase noise. Such high-quality microwave source enables a range of applications in which frequency stability and …
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Wafer-scale integrated active silicon photonics for manipulation and conversion of light
Silicon photonics is an emerging platform that promises to revolutionize integrated optics. This is expected to happen by inheriting the cost-effective, very large scale integration capabilities from complementary metal-oxide-semiconductor (CMOS) process. The compatibility with CMOS also merges the …
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Nonlinear Optics in III-V Quaternary Semiconductor Waveguides
… expected through replacing microelectronics by photonic chips. However, the variety of operations essential to perform all-optical signal processing cannot be handled by a single material platform yet. Several III-V semiconductors, such as AlGaAs, have demonstrated potentials for photonic …
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Regrowth-free monolithic vertical integration of passive and active waveguides
… discretely and packaged and coupled thereafter. Photonic Integrated Circuits (PICs) place multiple photonic components onto single chips, with the benefit of compactness resulting in lower cost through simpler coupling, lower power consumption, and volume manufacture. The difficulty faced by …
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Metamaterials for High-Efficiency Photonic Integrated Circuits with Multiband Applications in Quantum and Fibre Communications
… branch of electrical engineering now known as photonics. Since then, rapid population growth, the accelerated expansion of communication infrastructure, and the development of novel computing architectures have pushed classical electronics to their fundamental limits. Integrated photonics …
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Towards Advanced Photonic Integrated Systems Through Electronic-Assisted Design
As photonic integration processes are becoming more advanced, many optical systems are now being in- tegrated on-chip, featuring portable and energy-efficient implementations with orders of magnitude reduction in cost and volume compared to their bench-top counterparts. The conventional thinking …
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