Details

Autor(en) / Beteiligte

• Sambaraju, R.
• Palaci, J.
• Alemany, R.
• Polo, V.
• Corral, J.L.

Titel

Photonic vector demodulation of 2.5 Gbit/s QAM modulated wireless signals

Ist Teil von

• 2008 International Topical Meeting on Microwave Photonics jointly held with the 2008 Asia-Pacific Microwave Photonics Conference, 2008, p.117-120

Ort / Verlag

IEEE

Erscheinungsjahr

2008

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• In this paper, a technique for demodulation of vector modulated signals like QAM, using photonic techniques is presented. The photonic vector demodulator is capable of converting broadband wireless QAM signals into independent inphase and quadrature optical baseband signals. Experimental demonstration of demodulation of 2.5 Gbit/s QAM modulated 20 GHz carrier is presented. Bit error ratio of the demodulated-I and -Q optical baseband signals is measured and an error free demodulation achieved. A receiver sensitivity of -26.5 dBm and -27 dBm were measured for the I and Q signals respectively.