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10-Gb/s optical DPSK packet receiver proof against large power fluctuations

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4 Author(s)
Nizhizawa, H. ; Opt. Network Syst. Labs., Photonic Network Switching Res. Group, Kanagawa, Japan ; Yamada, Y. ; Shibata, Y. ; Habara, K.

Optical differential phase-shift keying direct detection (ODPSK-DD) with balanced receivers has the potential to offer large tolerance to signal-power fluctuations because the threshold voltage for signal regeneration is independent of the input power. This letter demonstrates 10-Gb/s packet reception by employing differential detection with an ODPSK-DD receiving set; packet by packet power fluctuation is 10 dB, and the packet spacing is 3.2 ns.

Published in:

Photonics Technology Letters, IEEE  (Volume:11 ,  Issue: 6 )