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    National Tsing Hua University Institutional Repository > 理學院 > 物理系 > 期刊論文 >  Dynamic Analysis of Cascade Laser Power Converters for Simultaneous High-Speed Data Detection and Optical-to-Electrical dc Power Generation

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/84021

    Title: Dynamic Analysis of Cascade Laser Power Converters for Simultaneous High-Speed Data Detection and Optical-to-Electrical dc Power Generation
    Authors: J.-W. Shi;F.-M. Kuo;Chan-Shan Yang;S.-S. Lo;Ci-Ling Pan
    教師: 潘犀靈
    Date: 2011
    Publisher: IEEE
    Relation: IEEE Transactions on Electron Devices, IEEE, Vol. 58, Issue 7, July, 2011, pp. 2049-2056
    Keywords: Photodiodes (PDs)
    Abstract: We analyze the dynamic behaviors of a novel device, i.e., cascaded high-speed laser power converters (LPCs), which can detect the direct-current (dc) component of an incoming high-speed optical data stream and efficiently convert its dc component to dc electrical power. By utilizing a p-type photoabsorption layer in our LPC, the problem of slow-motion holes can be eliminated, and only the electrons act as the active carriers. We can thus achieve high-speed performance with the LPC under forward-bias operation with a small electric field inside. Furthermore, according to our modeling and measurement results, there are a significant alternating-current capacitance reduction and an electron-trapping effect at the interface between the absorption and collector layers with a significant degradation in the carrier drift velocity. These become more serious with the increase in optical pumping power and forward-bias voltage and truly limit the net optical-to-electrical (O-E) bandwidth of the device. In order to overcome such a transient-time-limited bandwidth and further increase the maximum dc output voltage of the LPC, we connect two single LPCs in series (cascade). Error-free data detection of 10-Gb/s and an O-E dc power-generation efficiency of 21.1% can be achieved simultaneously at a wavelength of 850 nm by the use of such two cascaded LPCs.
    URI: http://www.ieee.org/index.html
    Appears in Collections:[物理系] 期刊論文

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