A practical approach to wavelength selectable DWDM sources

A wavelength selectable source within a transmitter for high-speed, dense wavelength division multiplexed systems must tune across a substantial number of channels while meeting rigorous system specifications in each channel. It must offer the same level of stability, reliability and ease of use as single wavelength counterparts. We examine a tunable source designed to meet the needs of high bit-rate DWDM systems for long-haul and metro applications.