Coherent receivers for lightwave systems require that the polarizations of the local oscillator (LO) and received optical signal coincide. This condition can be satisfied despite random fluctuations in the polarization of the received signal, using polarization diversity receivers, in which the two orthogonal polarization components are detected independently on two separate receivers.1,2 Although this requires a duplication of receiver electronics, the electromechanical problems associated with polarization tracking3 or the sensitivity penalty caused by scrambling the transmitted polarization4 are avoided.

© 1988 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription