Near infrared streak tube imaging lidar receiver

The Streak Tube Imaging LIDAR (STIL) combines streak tube and CCD imaging technology to yield high-resolution 3D imaging systems. The technology was developed primarily for ocean imaging and the operational wavelength is blue green. However, STIL and STIL derivatives have been demonstrated to be a powerful technique for generating high resolution 3D imagery in littoral, terrestrial and atmospheric applications but eye safety requirements and the need for covert operation preclude operation in the visible. Arete proposes to develop an advanced wavelength converter to extend the STIL operating range into the near infrared. The converter relies on the use of high quantum efficiency detectors (e.g., InGaAs arrays), VLSI analog electronics and Vertical Cavity Surface Emitting Lasers to accomplish the conversion. A proof of concept experiment demonstrated high bandwidth range resolved measurements in the laboratory. The proposed development effort will build and test a prototype converter system that will elucidate design issues in a risk-controlled manner, yielding a high probability of success in Phase II. The result of the combined Phase I and Phase II efforts will produce a component that allows STIL technology to be applied to military and commercial laser radar problems where operation in the NIR is essential.