Sökning: "optical modulator"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden optical modulator.

  1. 1. Design of a 200Gbps externally modulated laser for opto-electronic integration

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Tianyu Jiang; [2022]
    Nyckelord :Optical modulator; Externally modulated laser; Traveling-wave; Electroabsorption; PSPICE; Optisk modulator; externmodulerad laser; Resande-våg; Elektroabsorption; PSPICE;

    Sammanfattning : Segmented traveling wave electro-absorption modulators (TWEAMs) can provide a modulation speed above 100 Gb/s, which is needed in new optical communication networks. In the EU-project TWILIGHT, KTH continues the design work of TWEAMs in the EU-projects IPHOBAC and HECTO with the aim to design a new optical modulator to be integrated with an electronic layer. LÄS MER

  3. 2. Phase control with spatial-light modulators towards application for opto-optical modulation

    Kandidat-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Isa Hendriks; [2020]
    Nyckelord :phase control; spatial-light modulator; simulation; spatial phase profile; opto-optical modulation; Physics and Astronomy;

    Sammanfattning : This project is about focusing a Gaussian laser beam that has a spatial phase profile applied by a spatial light modulator. The goal is to be able to control the shape, position and phase of the peak at the focus and to split up the peak at the focus into several peaks. LÄS MER

  4. 3. Development of Next-Generation Optical Tweezers : The New Swiss Army Knife of Biophysical and Biomechanical Research

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Daniel Nilsson; [2020]
    Nyckelord :optical tweezers; optical fiber tweezers; optical fiber; optical trapping; manipulation; optical force; cell trapping; biophysical; physicochemical; biomechanical; research; next-generation; raman spectroscopy; holographic optical tweezers;

    Sammanfattning : In a time when microorganisms are controlling the world, research in biology is more relevant than ever and this requires some powerful instruments. Optical tweezers use a focused laser beam to manipulate and probe objects on the nano- and microscale. LÄS MER

  5. 4. Active Phase Compensation in a Fiber-Optical Mach-Zehnder Interferometer

    Master-uppsats, Linköpings universitet/Informationskodning

    Författare :Joakim Argillander; [2020]
    Nyckelord :phase stability; interferometer; quantum key distribution; fpga; automatic control; fasstabilitet; interferometer; kvantnyckeldistribution; fpga; reglerteknik;

    Sammanfattning : This thesis investigates the phenomena of phase stability in a fiber-optical MZI (Mach-Zehnder Interferometer). The MZI is a key building block of optical systems for use in experiments with both continuous-wave light and with single photons. LÄS MER

  7. 5. Physical modeling of optical modulators for optical link analysis : Optical link analysis in silicon photonics technologies

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

    Författare :Daniele Poggi; [2019]
    Nyckelord :Silicon photonics; physical modeling; ring modulator; electro-absorption modulator; optical modulator; optical link system; power consumption; Kiselfotonik; fysisk modellering; ringmodulator; elektroabsorptionsmodulator; optisk modulator; optiskt länksystem; strömförbrukning;

    Sammanfattning : According to the 2018 Ethernet Roadmap projections, the requirements for high speed links keep increasing every year, always keeping an eye on the energy per bit consumption of the communication system. The Ethernet requirements are estimated to reach 1Tbps by 2022-2025. LÄS MER