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M Gotoh - One of the best experts on this subject based on the ideXlab platform.
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power penalty due to optical reflections in erbium doped fiber preamplifier
IEEE Photonics Technology Letters, 1993Co-Authors: M Kobayashi, T Ishihara, M GotohAbstract:The effect of optical reflections in erbium-doped fiber amplifiers (EDFAs) is investigated primarily as they are used for preamplifying the received signal in a Digital Transmission System. Both an increase in amplified spontaneous emission (ASE) due to its multiple reflection and an increase in relative noise intensity (RIN) due to interferometric phase-to-intensity-noise conversion are considered as sources of degradation of the receiver sensitivity. The power penalty is calculated and confirmed experimentally. >
M Kobayashi - One of the best experts on this subject based on the ideXlab platform.
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power penalty due to optical reflections in erbium doped fiber preamplifier
IEEE Photonics Technology Letters, 1993Co-Authors: M Kobayashi, T Ishihara, M GotohAbstract:The effect of optical reflections in erbium-doped fiber amplifiers (EDFAs) is investigated primarily as they are used for preamplifying the received signal in a Digital Transmission System. Both an increase in amplified spontaneous emission (ASE) due to its multiple reflection and an increase in relative noise intensity (RIN) due to interferometric phase-to-intensity-noise conversion are considered as sources of degradation of the receiver sensitivity. The power penalty is calculated and confirmed experimentally. >
A Fellegara - One of the best experts on this subject based on the ideXlab platform.
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theoretical and experimental investigation of the optimum location for an in line fiber amplifier in high bit rate Transmission Systems
Optical Fiber Technology, 1996Co-Authors: A FellegaraAbstract:Abstract This paper is concerned with a Systematic approach for evaluating the optimal placement of an optical amplifier on a fiber link using a direct detection Digital Transmission System. The optimum position corresponds to maximizing the signal-to-noise ratio at the receiver. The presented theory confirms and quantifies the intuitively expected impact of the noise and gain saturation characteristics of the amplifiers on the overall System performance. A detailed experimental investigation carried on various erbium-doped fiber amplifiers at 2.5 Gbit/s agrees with the proposed model.
T Ishihara - One of the best experts on this subject based on the ideXlab platform.
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power penalty due to optical reflections in erbium doped fiber preamplifier
IEEE Photonics Technology Letters, 1993Co-Authors: M Kobayashi, T Ishihara, M GotohAbstract:The effect of optical reflections in erbium-doped fiber amplifiers (EDFAs) is investigated primarily as they are used for preamplifying the received signal in a Digital Transmission System. Both an increase in amplified spontaneous emission (ASE) due to its multiple reflection and an increase in relative noise intensity (RIN) due to interferometric phase-to-intensity-noise conversion are considered as sources of degradation of the receiver sensitivity. The power penalty is calculated and confirmed experimentally. >
Fath Patrick - One of the best experts on this subject based on the ideXlab platform.
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Design and Optimization of a passive 180 nm Receiver-Frontend for Low-Power 868 MHz SRD Applications
2020Co-Authors: Fath PatrickAbstract:Within the scope of this Masters thesis a 180 nm low-power 868 MHz receiver-frontend was designed and carried out in cooperation with the Institute for Integrated Circuits at the Johannes Kepler University. The given on-o keying modulated received signal is therefore processed by an antenna. A subsequent matching network, which is automatically generated with an algorithm implemented in this Masters thesis, ensures power transfer and simultaneously adds passive voltage gain to the following Dickson charge pump which serves as an envelope detector. This detector consists only of passive components and does not require a power supply. A 1.2V supply is only required for the downstream Digital part. A comparator is then used to digitize the analog signals of the charge pump. This Digital data is then processed by means of a Digital Transmission System designed on the principle of arithmetic averaging. Furthermore, it is possible to react to a certain wake-up bit pattern by a detector based on the principle of correlation. The individual components of the mentioned receiver-frontend were rst optimized by simulation and then fed into the layout process in order to manufacture the receiver as an integrated circuit. The functionality of the Digital part was veried by simulations and were designed to be easily implemented on an FPGA.submitted by Patrick Fath, BSc BScAbweichender Titel laut Übersetzung der Verfasserin/des VerfassersUniversität Linz, Masterarbeit, 2020(VLID)481779