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    National Tsing Hua University Institutional Repository > 理學院 > 物理系 > 期刊論文 >  Characterization of sub-THz photonic-transmitters based on CaAs-AlGaAs uni-traveling-carrier photodiodes and substrate-removed broadband antennas for impulse-radio communication


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/82233


    Title: Characterization of sub-THz photonic-transmitters based on CaAs-AlGaAs uni-traveling-carrier photodiodes and substrate-removed broadband antennas for impulse-radio communication
    Authors: Yu-Tai Li;J.-W. Shi;C.-Y. Huang;N.-W. Chen;S.-H. Chen;J.-I. Chyi;Ci-Ling Pan
    教師: 潘犀靈
    Date: 2008
    Publisher: Institute of Electrical and Electronics Engineers
    Relation: IEEE Photon. Technol. Lett., Vol. 20, No. 16, pp. 1342-1346, August 15, 2008
    Keywords: MILLIMETER-WAVE
    GENERATION
    Abstract: A novel photonic transmitter for wireless terahertz (THz) impulse-radio (IR) communication is realized by monolithic integration of a GaAs-AlGaAs-based uni-traveling-carrier (UTC) photodiode with a substrate-removed broadband antenna. The device can radiate strong sub-THz pulses (20-mW peak-power) with a narrow pulsewidth (< 2 ps) and wide bandwidth (100 similar to 250 GHz). The maximum average power emitted by our device, under the same THz time-domain spectroscopic setup, is around ten times higher than that of the low-temperature-grown GaAs-based photoconductive antenna, while with a much lower dc bias (9 versus 35 V). The bias-dependent peak output powers of our devices suggest their suitability for application as a data modulator/emitter for photonic THz IR communication.
    URI: http://www.ieee.org/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/82233
    Appears in Collections:[物理系] 期刊論文

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