Abstract
Optical generation of impulse-radio ultra-wideband (UWB) signals in the 60-GHz band is proposed and experimentally demonstrated. External-cavity laser (ECL) and vertical-cavity surface-emitting laser (VCSEL) is employed for frequency up-conversion by heterodyne mixing with a UWB optical signal for comparison purposes. Real-time bit-error-rate (BER) performance of generated signals at 3.125 Gb/s is evaluated combining fiber and 2-m wireless transmission. Different optical fiber types including 1-km bend-insensitive single-mode fiber and 20-km nonzero dispersion-shifted fiber is evaluated. $\hbox{BER} for the ECL and $\hbox{BER} for the VCSEL requiring higher received optical power than the ECL is demonstrated employing electrical power detection.
Original language | English |
---|---|
Journal | I E E E Photonics Technology Letters |
Volume | 23 |
Issue number | 15 |
Pages (from-to) | 1055-1057 |
ISSN | 1041-1135 |
DOIs | |
Publication status | Published - 2011 |
Keywords
- Ultra-wideband (UWB)
- Vertical-cavity surface-emitting laser (VCSEL)
- Optical pulse generation
- 60-GHz radio
- External-cavity laser (ECL)
- Impulse radio