Optoelectronics and Photonics Engineering presents the fundamental physics concepts for modern optoelectronic and photonic devices. Rather than taking a traditional physics based approach to optoelectronics, the material presented here not only takes into consideration the underlying physics principles, but offers an engineering system design based approach. Coverage includes device designs necessary for various technological applications such as solid state lighting, light wave communication, display and photovoltaic energy generation. In addition, material presented encompasses integration processes for optical, electrical and opto-electronic components for specific systems application. Technical gaps and grand challenges in the areas of materials, devices, system designs and manufacturing processes are presented that pave the path for future research directions for developing energy efficient products and green technologies that incorporate advanced materials, multi-functional devices and intelligent operational protocols.