Abstract
In this letter, we propose a new optically based system to generate ultrawide-band (UWB) impulse signals. The system includes a Fabry-Pérot 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.
| Original language | English |
|---|---|
| Pages (from-to) | 2418-2420 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 17 |
| Issue number | 11 |
| DOIs | |
| State | Published - 11 2005 |
Keywords
- Fast Fourier transform (FFT)
- Gain-switched operation
- Gaussian monocycle pulses
- Microwave differentiator
- Ultrawide-band (UWB)
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