Search for dissertations about: "fiber optics"

Showing result 1 - 5 of 57 swedish dissertations containing the words fiber optics.

  1. 1. All-fiber modulators for laser applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Mikael Malmström; KTH.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; All-fiber; fiber optics; modulation; q-switching; mode-locking;

    Abstract : The objective of this thesis was to explore the usefulness of all-fiber modulators for laser applications. The modulators were all based on refractive index change achieved in the core of the studied fiber- components, exploiting either the elasto-optic effect or the electro-optic effect. READ MORE

  2. 2. Advanced all-fiber optofluidic devices

    University dissertation from KTH Royal Institute of Technology

    Author : Sebastian Etcheverry Cabrera; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber optics; functional fiber probes; optofluidics; microfluidics; plasmonic; all-fiber technology; instrumentation for life-sciences.; Physics; Fysik;

    Abstract : Significant technological advances of the last years have been possible by developments in Optofluidics, which is a field that deals with the integration of optics and microfluidics into single devices.The work described in this thesis is based on five scientific publications related to the use of fiber optic technology to build integrated optofluidic devices. READ MORE

  3. 3. Photodynamic Therapy utilizing Interstitial Light Delivery Combined with Spectroscopic Methods

    University dissertation from Atomic Physics, Department of Physics, Lund University

    Author : Marcelo Soto Thompson; Lunds universitet.; Lund University.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; onkologi; Cytologi; cancerology; oncology; Cytology; fiber optics; dosimetry; spectroscopy; tissue optics; laser-induced fluorescence; medical laser systems; Laserteknik; cancer; photodynamic therapy; interstitial; Laser technology; Fysicumarkivet A:2004:Soto Thompson;

    Abstract : Popular Abstract in Swedish Redan för 5000 år sedan i det antika Egypten användes ljus för att behandla vissa hudåkommor. Denna bortglömda kunskap återupptäcktes i början av förra seklet men fick inget riktigt genomslag. De senare årtiondenas framsteg inom kemi och fysik har återigen gjort ljusbehandling av sjukdomar högintressant. READ MORE

  4. 4. Capacity Analysis and Receiver Design in the Presence of Fiber Nonlinearity

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Kamran Keykhosravi; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; perturbation theory.; Achievable rate; nonlinearity mitigation; noncoherent optics; dispersion compensation; fiber optics; channel capacity; information theory;

    Abstract : The majority of today's global Internet traffic is conveyed through optical fibers. The ever-increasing data demands have pushed the optical systems to evolve from using regenerators and direct-direction receivers to a coherent multi-wavelength network. READ MORE

  5. 5. Optical Transmission Systems Based on Phase-Sensitive Amplifiers

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Samuel L I Olsson; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optical injection locking; fiber nonlinearities; optical fiber communication; fiber nonlinearity mitigation; four-wave mixing; fiber optic parametric amplification; low-noise amplification; phase-sensitive amplification; fibre optics;

    Abstract : The capacity and reach of today's long-haul fiber optical communication systems is limited by amplifier noise and fiber nonlinearities. Conventional, phase-insensitiveamplifiers (PIAs), have a quantum limited noise figure (NF) of 3 dB at high gain, meaning that with a shot-noise limited input signal the signal-to-noise ratio (SNR)is degraded by at least 3 dB. READ MORE