WDM assembly

Abstract

A WDM assembly comprising a WDM filter structure for multiplexing and demultiplexing optical signals and having a single fibre common connection for transmitting and receiving a WDM optical signal; a housing member for the WDM filter structure; a plurality of E/O transmitter units external to the housing member for receiving a plurality of independent electrical data signals and converting into a plurality of corresponding optical WDM channel signals; plurality of O/E receiver units external to the housing member for receiving a plurality of optical WDM channel signals and converting into a corresponding plurality of independent electrical data signals; wherein each of the E/O transmitter units and O/E receiver units is optically connected to the WDM filter structure via a single fibre link; and wherein excess fibre length in each fibre link is accommodated within the housing member, whereby each fibre length has a predetermined external fibre length between the housing member and the E/O transmitter units and the O/E receiver units.

Dependencies are inferred from the claim text.