Abstract:A semiconductor optical amplifier fiber ring laser (SOAFRL) utilizing a Fiber Bragg Grating (FBG) is demonstrated. The laser operates at a wavelength of 1547.64 nm, equal to the Bragg wavelength. By removing FBG, the SOAFRL shows a multi‐modes output due to the resonant characteristics of the semiconductor optical amplifiers (SOA's) gain. The output power ripple is observed around 5 dB. The experimental results show that when the saturation level is reached, the SOAFRL with the FBG shows a higher saturation cu… Show more
“…These results will be useful for applications such as WDM, especially in applications which require close wavelength spacing. Recently, SiGe HBT ultra-wideband (UWB) systems have attracted a lot of attention because they are capable of high data-rate transmission with low power consumption [1][2][3][4]. UWB LNA is a critical block in UWB receiver front-end design.…”
Section: Discussionmentioning
confidence: 99%
“…Several wavelength-tuning techniques have been reported for fiber lasers [1][2][3][4][5][6][7][8][9][10][11][12], such as the use of tunable fiber Bragg gratings (FBG) [1][2][3], wavelength-tunable double-ring fiber laser [5], tunable dual or single-wavelength fiber lasers employing external optical injection [6,7], fast tuning fiber laser with outstanding quality [8], and Sagnac loop filter based fiber lasers [10].…”
“…These results will be useful for applications such as WDM, especially in applications which require close wavelength spacing. Recently, SiGe HBT ultra-wideband (UWB) systems have attracted a lot of attention because they are capable of high data-rate transmission with low power consumption [1][2][3][4]. UWB LNA is a critical block in UWB receiver front-end design.…”
Section: Discussionmentioning
confidence: 99%
“…Several wavelength-tuning techniques have been reported for fiber lasers [1][2][3][4][5][6][7][8][9][10][11][12], such as the use of tunable fiber Bragg gratings (FBG) [1][2][3], wavelength-tunable double-ring fiber laser [5], tunable dual or single-wavelength fiber lasers employing external optical injection [6,7], fast tuning fiber laser with outstanding quality [8], and Sagnac loop filter based fiber lasers [10].…”
“…The inverter can be used with the SVPWM approach to control the speed and torque of electric motors [26]- [28]. SVPWM has become a popular alternative for low-switch-count systems due to its greater efficiency in regulating inverters with fewer switches [29], [30].…”
Section: Space Vector Pulse Width Modulationmentioning
<p><span lang="EN-US">Artificial intelligence (AI) is being proposed for a range of subfields that deal with photovoltaic (PV) systems as a result of improvements in computer power, tool accessibility, and data generation. The methods employed at present in the PV industry for a variety of tasks, including the outcomes of design, forecasting, control, and maintenance, have been found to be relatively inaccurate. Additionally, the use of AI to carry out these tasks has improved in terms of accuracy and precision, which has made the topic itself highly interesting. In light of this, the goal of this article is to examine the effect AI approaches have on the solar value chain. The article involves creating a map of all currently accessible AI technologies, identifying potential future uses for AI, and weighing the advantages and disadvantages of these technologies’ relative to more conventional approaches. This article lays special emphasis on discussing AI techniques for improving the power quality in grid systems involving space vector pulse width modulated inverters interfacing the photovoltaic to the grid along with power converter defect monitoring, filter flaw detection, and battery monitoring.</span></p>
“…Referring to Fig. 1, we see that if all the gratings but FBG#1 are removed and the EOM is switched off, the structure corresponds to a standard fiber ring-laser with an in-cavity bandpass filter which restricts the possible lasing frequencies to those inside its bandwidth, much narrower than that of the SOA [5]. The unstructured oscillating modes can be locked by actively modulating the losses with the EOM if the radio-frequency (RF) modulating frequency matches the frequency mode-spacing of the cavity, in the simplest case, or one of its harmonics.…”
This paper is focused on the characterization of a fiber Bragg grating (FBG) sensor interrogation system based on a fiber ring laser with a semiconductor optical amplifier as the gain medium, and an in-loop electro-optical modulator. This system operates as a switchable active (pulsed) mode-locked laser. The operation principle of the system is explained theoretically and validated experimentally. The ability of the system to interrogate an array of different FBGs in wavelength and spatial domain is demonstrated. Simultaneously, the influence of several important parameters on the performance of the interrogation technique has been investigated. Specifically, the effects of the bandwidth and the reflectivity of the FBGs, the SOA gain, and the depth of the intensity modulation have been addressed.
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