Abstract
Silicon-on-insulator (SOI) photonic integrated circuits have recently become a research topic of great interest due to their compact confinements and compatibility with the modern micro-electronics. As the dominant issues of the integration density of planar lightwave circuits on a single SOI chip, low-loss SOI curved waveguides and corner turning mirror (CTM) structures are attracting attention. This work aims at the performance comparison between the SOI curved waveguides and CTM structures. For this goal we have designed both SOI curved waveguides and SOI CTM structures and then fabricated them. The performance of these two devices, such as the propagation loss and polarization dependent loss, is measured and compared.