| 摘要 |
<p>The invention relates to a method for determining a presence of a locking signal in a signal received by an optical receiver device, the optical receiver device being intended to be used in an optical communications network, the locking signal being a signal exchanged by optical communication devices of the optical communications network in a phase preceding setting up communications between said optical communication devices. The presence of the locking signal is determined by obtaining the direct current component or the component at twice a frequency at which the locking signal is supposed to be modulated, and by obtaining the contribution of the communication signal, if any, on said component.</p> |
