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At present, the optical fiber differential protection is widely used in high voltage power grid. However, due to the limitation of technology and equipment, there are still some reasons for the normal operation of optical fiber protection. In this paper, according to the actual operation of the optical fiber differential protection, the impact of optical fiber differential protection is analysed and...
Wavelength tuning of a Yb:KGW solid-state laser is presented using an electrothermally-actuated micromirror and a diffraction grating or dispersing prism. 27 nm and 7.5 nm tuning ranges are achieved using extracavity and intracavity configurations respectively.
Fiber Optic Current Transformer (FOCT) realizes current measurement by using the Faraday magneto-optical effect. With advantage of unsaturation, wide dynamic range and immunity to electromagnetic interference etc, FOCT is widely used in smart substation and HVDC transmission, so the accuracy of measurement and reliability of long-term operated have become the focus of attention[1–3]. In this paper...
The demand for broadband access has grown steadily as users experience the convenience of high-speed response combined with "always-on" connectivity. In this paper, we propose a radio over fiber (RoF) based broadband wireless access network architecture. Characteristics of the architecture, advantages and benefits, and appLications of RoF technology are discussed. Moreover, a radio over...
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