Redondo Optics, Inc. is a research and engineering company in the materials science, optics and fiber optics, electronics and signal processing space. Focused to the fields of nanotechnology, advanced optical materials, optical sensors and instrumentation,, the effort is development of disruptive products with applications in energy, lighting and displays, life sciences and biotechnology, aerospace, telecommunications, and defense and security. Redondo Optics, Inc. offers a fiber optic oxygen sensor system with built-in optical temperature compensation. The FoxSense fiber optic oxygen sensor system uses Redondo Optics' proprietary frequency domain "phase-locked" detection technology. The firm's line of FOT-Sensors is specifically designed to be used with the FoxSense system. The FBG-Transceiver system is based on patented hybrid planar lightwave circuit technology with the newest FBG-Transceiver 600 model offering reliable, compact and affordable FBG sensor readout solution for applications where weight and size are critical.