1 results about "Wdm transmission systems" patented technology

The present disclosure relates to multi-channel optical transmitters and apparatuses in WDM transmission systems. A GT etalon-based dispersion compensator is disclosed that can be utilized in combination with a wavelength division multiplexer at the transmitter location to provide a degree of pre-compensation for signals operating at wavelengths known to experience dispersion between the transmitter and receiver locations. The GT etalon-based dispersion compensator utilizes a separate dispersion compensator configured as a transmissive device by using a polarization beam splitter, a GT etalon, and a pair of quarter-wave plates in a manner such that the output signal path remains collinear with the input signal path and also preserves the linear polarization state of the propagating signal. Multiple of these transmissive dispersion compensators can be cascaded in a back-to-back arrangement within the signal path of a particular channel to provide a greater degree of pre-compensation for wavelengths known to be more susceptible to dispersion compensation.