Title :
PSK optical homodyne system with nonlinear phase-locked loop
Author :
Schopflin, A. ; Gottwald, Erich ; Fischer, Georg
Author_Institution :
Central Labs., Siemens AG, Munchen, West Germany
fDate :
3/15/1990 12:00:00 AM
Abstract :
Ultra-sensitive PSK homodyne systems with nonlinear phase-locked loops (Costas and decision-driven loop) have been realised. Receiver sensitivities of -66.2 dBm (140 Mbit/s) and -57.5 dBm (565 Mbit/s) have been achieved in terms of detected effective signal power. Stable optical phase-locked loop operation has been observed clearly below -82 dBm of the optical input power.
Keywords :
optical communication equipment; phase shift keying; phase-locked loops; 140 Mbit/s; 565 Mbit/s; Costas loop; PSK optical homodyne system; decision-driven loop; detected effective signal power; nonlinear phase-locked loop; optical input power; optical phase-locked loop; sensitivities; stable operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900258
