Widely-Tunable Chip-Scale Transmitters and Wavelength Converters

Widely-tunable lasers have gained much attention over the past few years as universal sources for dense WDM networks[1]. Interest in the dynamic networking capability enabled by such sources is also of continued interest, although the slow-down in the build out of the telecom infrastructure has slowed the introduction of such architectures. In this paper we will review the current status of InP-based integrated optical transmitters, which are monolithically integrated on a single chip and cover the full C or L-bands, and we will also give an update on the recent application of such devices within monolithically-integrated widely-tunable wavelength converters.