Self-Organized Lightwave Networks : Self-Aligned Coupling Optical Waveguides

The SOLNET (self-organized lightwave network) enables self-aligned optical coupling between misaligned optical devices with different core sizes, optical wiring in 3-D free spaces, and targeting lightwaves onto specific objects. These features make fabrication processes of optical networks within systems simpler to reduce the system cost. By reading this book, the readers can learn SOLNETs, their applications, and future challenges systematically. The readers can get hints to reduce the system cost by implementing optical solder and 3-D optical wiring of SOLNET into the systems.

This book gives a solution to the problem of constructing lightwave paths in free spaces by proposing the concept of a Self-Organized Lightwave Network (SOLNET). This concept enables us to form self-aligned coupling optical waveguides automatically. SOLNETs are fabricated by self-focusing of lightwaves in photosensitive media, in which the refractive index increases upon light beam exposure, to realize the following functions:

1) Optical solder: Self-aligned optical couplings between misaligned devices with different core sizes

2) Three-dimensional optical wiring

3) Targeting lightwaves onto specific objects

SOLNETs are expected to reduce the efforts to implement lightwaves into electronic systems and allow us to create new architectures, thus reducing costs and energy dissipation and improving overall system performance. SOLNETs are also expected to be applied to a wide range of fields where lightwaves are utilized, for example, solar energy conversion systems and biomedical technologies, especially photo-assisted cancer therapies. Readers will systematically learn concepts and features of SOLNETs, SOLNET performance predicted by computer simulations, experimental demonstrations for the proof of concepts, and expected applications. They will also be prepared for future challenges of the applications. This book is intended to be read by scientists, engineers, and graduate students who study advanced optoelectronic systems such as optical interconnects within computers and optical networking systems, and those who produce new ideas or strategies on lightwave-related subjects.