Low-loss III-V semiconductor optical waveguides

A review is presented of recent progress in low-loss III-V semiconductor integrated optics for the 1-1.6 mu m wavelength range, including propagation, bending, coupling, and modulator losses. Tradeoffs between loss and other performance issues are discussed in detail. The authors show that significant advances have resulted in a research shift from work on the general issues of improved material transparency and straight guide propagation loss to more application-specific areas. In particular, size-loss tradeoffs in bend and modulator structures remain key issues for widespread use of III-V integrated optics.< >