Sökning: "fiber Bragg grating"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden fiber Bragg grating.

  1. 1. Applications of monolithic fiber interferometers and actively controlled fibers

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Patrik Rugeland; KTH.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber; fiber Bragg grating; micro-structured fiber; add drop multiplexer; fiber interferometer; microwave photonics; temperature sensor;

    Sammanfattning : The objective of this thesis was to develop applications of monolithic fiber devices and actively controlled fibers. A special twin-core fiber known as a ‘Gemini’ fiber was used to construct equal arm-length fiber interferometers, impervious to temperature and mechanical perturbations. LÄS MER

  2. 2. Photosensitivity, chemical composition gratings and optical fiber based components

    Detta är en avhandling från Stockholm : KTH

    Författare :Michael Fokine; KTH.; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optical fibers; fiber bragg gratings; photosensitivity; thermal stability; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : The different topics of this thesis include high-temperaturestable fiber Bragg gratings, photosensitivity and fiber basedcomponents.Fiber Bragg gratings (FBG) are wavelength dispersiverefractive index structures manufactured through UV exposure ofoptical fibers. LÄS MER

  3. 3. Laser processing of Silica based glass

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Patrik Holmberg; KTH.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber Bragg Gratings; photosensitivity; Glass; laser machining; optical fibers; fiber sensor; Physics; Fysik;

    Sammanfattning : The main topic of this thesis work is photosensitivity and photo-structuring of optical fibers and bulk glass. Although research in the field of photosensitivity in glass and optical fibers has been ongoing for more than three decades, the underlying mechanisms are still not well understood. LÄS MER

  4. 4. Study on electroabsorption modulators and grating couplers for optical interconnects

    Detta är en avhandling från Stockholm : KTH

    Författare :Yongbo Tang; KTH.; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Photonic integrated circuit; optical interconnect; transmission line; traveling-wave; electro-absorption modulator; hybrid silicon evanescent platform; grating coupler; vertical coupling scheme; optical antenna; lag effect; polarization beam splitter; TECHNOLOGY Electrical engineering; electronics and photonics Photonics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Fotonik; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Sammanfattning : Decades of efforts have pushed the replacement of electrical interconnects by optical links to the interconnects between computers, racks and circuit boards. It may be expected that optical solutions will further be used for inter-chip and intra-chip interconnects with potential benefits in bandwidth, capacity, delay, power consumption and crosstalk. LÄS MER

  5. 5. Integrated Nanophotonic Devices in Lithium Niobate

    Detta är en avhandling från KTH Royal Institute of Technology

    Författare :Mohammad Amin Baghban; KTH.; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lithium niobate LN ; LN-on-insulator; photonic integrated circuits; nonlinear optics; electro-optics; waveguides; propagation losses; Bragg gratings; grating couplers; polarization-insensitive; LN for life sciences; Physics; Fysik;

    Sammanfattning : Lithium niobate (LN) is a ferroelectric crystal offering a broad transparency spectrum, together with excellent electro-optic and nonlinear optical properties. Thanks to them, LN is setting the standard for quantum optics and telecommunications in critical applications such as ultrafast modulation and frequency conversion. LÄS MER