標題: Characterization of sub-THz photonic-transmitters based on CaAs-AlGaAs uni-traveling-carrier photodiodes and substrate-removed broadband antennas for impulse-radio communication
作者: Li, Yu-Tai
Shi, J. -W.
Huang, Cheng-Yu
Chen, Nan-Wei
Chen, Shu-Han
Chyi, J. I.
Pan, Ci-Ling
光電工程學系
Department of Photonics
關鍵字: photonic transmitter (PT);submillimeter-wave;terahertz (THz);uni-traveling-carrier photodiode (UTC-PD)
公開日期: 1-Jul-2008
摘要: 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://dx.doi.org/10.1109/LPT.2008.926855
http://hdl.handle.net/11536/8665
ISSN: 1041-1135
DOI: 10.1109/LPT.2008.926855
期刊: IEEE PHOTONICS TECHNOLOGY LETTERS
Volume: 20
Issue: 13-16
起始頁: 1342
結束頁: 1344
Appears in Collections:Articles


Files in This Item:

  1. 000258505800086.pdf