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Implementation of a new ultrawide-band impulse system

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2 Author(s)
Wen-Piao Lin ; Dept. of Electr. Eng., Chang Gung Univ., Taoyuan, Taiwan ; Jun-Yu Chen

In this letter, we propose a new optically based system to generate ultrawide-band (UWB) impulse signals. The system includes a Fabry-Pe´rot laser diode under gain-switched operation and an erbium-doped fiber amplifier used as an external-injection light source to generate optical pulses on the transmitter end, together with a PIN photodiode and a first-order microwave differentiator to convert optical pulses into electrical Gaussian monocycle pulses on the receiver front-end. The experimental and fast Fourier transform analytical results demonstrate that the proposed system can generate UWB impulse signals and provide several gigahertz bandwidths for future applications of high-bit-rate UWB wireless systems.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 11 )