Sökning: "grating couplers"

Hittade 5 uppsatser innehållade orden grating couplers.

  1. 1. Characterization of Silicon Waveguides For Non-Dispersive Infrared Gas Sensors

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Sarah Zayouna; [2020]
    Nyckelord :;

    Sammanfattning : Carbon dioxide is an important gas for life on Earth. But as human activities have been expanding throughout modern history, the CO2 concentration in the atmosphere is increasing. High concentrations of carbon dioxide can lead to various consequences, such as climate change and poor air quality both indoors and outdoors. LÄS MER

  3. 2. Automatic Measurement Setup for new Optical FPGA:s

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Tommy Lundberg; Daniel Nee; [2019]
    Nyckelord :silicon photonics; grating couplers; automatic testing; optical fibers;

    Sammanfattning : Aiming to reduce research and development times in the field of silicon photonics, this paper presents a method for automatized device testing. Focus lies on automatic optical coupling between the grating couplers on a chip and optical fibers and efficient switching between devices when performing laboratory tests on silicon photonic chips. LÄS MER

  4. 3. Automatic Measurement Setup for Characterization of On-Chip Tunable Grating Couplers

    Kandidat-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Kristian Wahlqvist; Felix Caesar; [2017]
    Nyckelord :;

    Sammanfattning : Grating couplers are used for coupling betweenoptical fibers and on-chip silicon photonics waveguides. Efficientfiber-to-chip coupling is elemental in in the development ofphotonics, making the process of evaluating new grating couplerdesigns vital. LÄS MER

  5. 4. Integration of III-V light sources for silicon photonics applications

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Louise Laurenius; [2016]
    Nyckelord :III-V integration; multiquantum well lasers; lateral current injection; silicon photonics; Technology and Engineering;

    Sammanfattning : During the last decades, there have been tremendous improvements in Silicon-based transistor technologies such as operational speed increase as well as size and cost reduction. However, the bandwidth in modern processors is significantly limited by the data transfer in the metallic interconnects. LÄS MER

  7. 5. Characterization of High-K Double Slot Grating Couplers for on-chip Interconnects

    Kandidat-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Raül Colomer Molines; [2012]
    Nyckelord :;

    Sammanfattning : In this project, optical waveguides are analyzed with the intention of explain the principles of confine and guide light by using materials with a specific refractive index. The waveguide fabrication process in a silicon wafer is review as for the different type of devices or waveguides. LÄS MER