Search for dissertations about: "fiber ring laser"

Showing result 1 - 5 of 7 swedish dissertations containing the words fiber ring laser.

  1. 1. Poled fiber devices

    Author : Niklas Myrén; Fredrik Laurell; Faman Kashyap; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Physics; optical physics; Poling; twin-hole fiber; fiber electrodes; silver film electrodes; silver diffusion; quasi-phase matching; optical switching; frequency conversion; optical modulation; Fysik; Physics; Fysik;

    Abstract : The topic of this thesis is the development of devices for telecom applications based on poled optical fibers. The focus is on a specific function, optical switching/modulation. Some of the most important results are summarized below. Optical switching at telecom wavelengths (1. READ MORE

  2. 2. Generation and Applications of Picosecond Pulses in High-Capacity Fiber Optic Systems

    Author : Jie Li; Chalmers University of Technology; []
    Keywords : nonlinear distortion; optical pulse shaping; dispersion-management; eye-diagram; cross-phase modulation; optical sampling; optical fiber applications; multiplexing; parametric amplification; demultiplexing; optical pulses; fiber optical communication; nonlinear systems; time division multiplexing; four-wave mixing; polarization-mode dispersion; optical signal processing; fiber optical nonlinearities; fiber ring laser; soliton robustness; mode-locking; optical filters; networks;

    Abstract : This thesis deals with short optical pulse generation from actively mode-locked Erbium-doped fiber ring lasers (ML-EFRL) and their applications in all-optical signal processing (optical sampling and switching) and transmission experiments for high-capacity fiber optic systems. In future ultra-high bit-rate optical time division multiplexed (OTDM) systems, one of the key requirements is to develop reliable optical pulse sources that can generate high quality optical pulses. READ MORE

  3. 3. Continuously tunable narrow-linewidth fiber lasers

    Author : Xiong Yang; Valdas Pasiskevicius; Fredrik Laurell; Magnus Engholm; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Fiber laser; Optics and Photonics; Optik och fotonik;

    Abstract : Narrow linewidth tunable fiber lasers have become an important tool in research and in-field applications thanks to their high beam quality, great spectral performance, compact structure and environmental robustness. Many methods have been introduced and developed throughout decades to fulfill the need for rapid wavelength adjustment of these fiber lasers. READ MORE

  4. 4. Generation of optical pulses from Erbium-doped fiber ring lasers and their applications in soliton transmission and all-optical sampling

    Author : Jie Li; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dispersion-management; pulse generation; temporal resolution; super-mode noise; parametric amplification; timing jitter; mode-locking; fiber ring laser; eye-diagram; soliton robustness; polarization-mode dispersion; all-optical sampling; highly nonlinear fiber;

    Abstract : .... READ MORE

  5. 5. Generation and Transmission of Optical Solitons at Ultrahigh Bit Rates

    Author : Bamdad Bakhshi; Chalmers University of Technology; []
    Keywords : nonlinear optics; chirp-free optical pulses; lowpass filtering; polarization-maintaining fibers; optical communication; optical solitons; Erbium fiber ring laser; dispersion-management; active mode-locking; soliton interactions; erbium-doped fiber amplifier; Gaussian pulses;

    Abstract : This thesis deals with the generation and transmission of optical solitons in ultrahigh-speed fiber-optic communication systems. For optical soliton pulses the fiber dispersion and nonlinearity can under certain circumstances cancel each other, thus allowing the solitons to remain undistorted over long distances. READ MORE