TY - JOUR
T1 - Ultrawideband pulse generation based on overshooting effect in gain-switched semiconductor laser
AU - Torres-Company, V.
AU - Prince, Kamau
AU - Tafur Monroy, Idelfonso
PY - 2008
Y1 - 2008
N2 - We demonstrate an alternative procedure to achieve ultrawideband (UWB) radio-frequency (RF) doublet impulses. It is based on the overshooting effect appearing by biasing a semiconductor laser close to the threshold with a large-amplitude signal. Specifically, with an optical bandpass filter and an electrical lowpass filter, we easily obtain doublet-like impulses whose RF spectrum meets the UWB regulations. Furthermore, we have been able to propagate such signals through an optical fiber link of 118-km length. Though the technique is not flexible in terms of waveform generation, our method constitutes a reliable, easy, and low-cost alternative for RF UWB impulse generation.
AB - We demonstrate an alternative procedure to achieve ultrawideband (UWB) radio-frequency (RF) doublet impulses. It is based on the overshooting effect appearing by biasing a semiconductor laser close to the threshold with a large-amplitude signal. Specifically, with an optical bandpass filter and an electrical lowpass filter, we easily obtain doublet-like impulses whose RF spectrum meets the UWB regulations. Furthermore, we have been able to propagate such signals through an optical fiber link of 118-km length. Though the technique is not flexible in terms of waveform generation, our method constitutes a reliable, easy, and low-cost alternative for RF UWB impulse generation.
U2 - 10.1109/LPT.2008.926905
DO - 10.1109/LPT.2008.926905
M3 - Journal article
SN - 1041-1135
VL - 20
SP - 1299
EP - 1301
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 15
ER -