Optical frequency stabilisation scheme for an OFDM network based on widely spaced optical crossconnects

Kruger, U.; Kruger, K.; Helmolt, C.; Pawlowski, E.

1995

Conference Paper

Abstract

A frequency control scheme is introduced where within each transmitter its frequency is referenced to a silica based optical frequency discriminator, which in addition is locked to an absolute reference frequency. The described set-up is employed in an OFDM based optical crossconnect- demonstrator (RACE 2065; COBRA). An absolute stability of +or-1GHz was achieved.