Search for dissertations about: "phase noise mitigation"
Showing result 1 - 5 of 15 swedish dissertations containing the words phase noise mitigation.
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1. Frequency Noise in Coherent Optical Systems: Impact and Mitigation Methods
Abstract : The increase in capacity demand along with the advancement in digital signal processing (DSP) have recently revived the interest in coherent optical communications and led to its commercialization. However, design and development of robust DSP algorithms for example for carrier phase recovery (CPR) becomes complex as we opt for high order modulation formats such as 16QAM and beyond. READ MORE
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2. Nonlinearity mitigation in phase-sensitively amplified optical transmission links
Abstract : The fundamental limitations in fiber-optic communication are caused by optical amplifier noise and the nonlinear response of the optical fibers. The quantum-limited noise figure of erbium-doped fiber amplifier (EDFA) or any phase-insensitive amplifier is 3 dB. READ MORE
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3. Phase-sensitive amplifiers for nonlinearity impairment mitigation in optical fiber transmission links
Abstract : The fundamental limitations in fiber-optic communication are caused by optical amplifier noise and the nonlinear response of the optical fibers. The quantum-limited noise figure of erbium-doped fiber amplifiers (EDFAs) or any phase-insensitive amplifier is 3 dB. READ MORE
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4. Multi-Gigabaud Millimeter-Wave Communication - Challenges and Solutions
Abstract : A major challenge in future mobile networks is to overcome the capacity barrier in wireless communication. Utilizing large bandwidth at higher frequencies is key to enabling capacity upgrade for next generation mobile networks (5G). READ MORE
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5. Low noise frequency combs and injection locking for broadly tunable laser sources and tomography
Abstract : Lasers have revolutionized the world of physics by providing a highly coherent source of photons which may be used for a large variety of purposes. Here, we study the noise properties of frequency combs - a special class of frequency stabilized and mutually coherent multi-mode lasers, as well as the optical injection locking of comb tones as a means for low noise amplification and tone selection. READ MORE