Fully functional wavelength selectable DWDM transmitter

A wavelength selectable transmitter for 2.5 or 10 Gb/s dense wavelength division multiplexed (DWDM) systems must tune across a substantial number of channels while meeting rigorous system specifications in each channel. Moreover, a tunable transmitter must feature the same level of stability, reliability and ease of use compared to single wavelength counterparts. We examine a 20-channel transmitter designed to meet the needs of high bit-rate DWDM systems.