Abstract
We have proposed and experimentally investigated polarization insensitive all-optical up-conversion for ROF system based on FWM in a semiconductor optical amplifier (SOA). The parallel pump is generated based on odd-order optical sidebands and carrier suppression using an external intensity modulator and a cascaded optical filter. Therefore, the two pumps are always parallel and phase locked, which makes system polarization insensitive. After FWM in a SOA and optical filtering, similar to single sideband (SSB) 40GHz optical millimeter-wave is generated only using 10GHz RF as local oscillator (LO). The receiver sensitivity at a BER of 10-9 for the up-converted signals is -28.4dBm. The power penalty for the up-converted downstream signals is smaller than 1dBm after 20km SSMF- 28 transmission.
| Original language | English |
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| Pages (from-to) | 6962-6967 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 17 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 27 Apr 2009 |
| Externally published | Yes |