Title :
Wide dynamic range 10-Gb/s DPSK packet receiver using optical-limiting amplifiers
Author :
Su, Yikai ; Liu, Xiang ; Leuthold, Juerg
Author_Institution :
Shanghai Jiao Tong Univ., China
Abstract :
We demonstrate a method to extend the dynamic range (DR) of 10-Gb/s differential phase-shift keying (DPSK) receivers in presence of burst-mode data. We achieve a DR of 25 dB by operating linear optical amplifiers in saturation and benefiting from fast optical-limiting amplification. A fixed decision threshold as enabled by DPSK receivers with balanced detection eliminates the need for guard times and removes inherent sensitivity penalty associated with the adaptive threshold as in conventional on-off keying receivers.
Keywords :
differential phase shift keying; optical limiters; optical receivers; optical saturable absorption; packet switching; phase coding; semiconductor optical amplifiers; 10 Gbit/s; DPSK receivers; adaptive threshold; balanced detection eliminates; burst-mode data; fast optical-limiting amplification; fixed decision threshold; inherent sensitivity penalty; linear optical amplifiers; packet switching; phase coding; saturation; semiconductor optical amplifiers; wide dynamic range; Differential quadrature phase shift keying; Dynamic range; Erbium-doped fiber amplifier; Optical amplifiers; Optical packet switching; Optical receivers; Optical saturation; Optical sensors; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.818914
