Advanced Photonix, Inc. (API) is engaged in the development and manufacturing of optoelectronic devices, and sub-systems and systems. The Company is a supplier of optoelectronic semiconductors packaged into high-speed optical receivers, custom optoelectronic subsystems and Terahertz instrumentation, serving a range of global original equipment manufacturers (OEM) markets. The high-speed optical receivers include avalanche photodiode technology (APD) and positive-intrinsic-negative (PIN) photodiode technology based upon III-V materials, including InP, InAlAs, and GaAs. The optoelectronic subsystems are based on the silicon Large Area Avalanche Photodiode (LAAPD), PIN photodiode, FILTRODE detectors and light emitting diode (LED) assemblies. The Terahertz sensor product line is targeted at the industrial Non-Destructive Testing (NDT), quality control, homeland security and military markets.