Coherently Combined High-Power Single-Mode Emitters (COCHISE)
Abstract
(U) The Coherent Combination of High-Power Single Emitters (COCHISE) program will develop kilowatt-class, coherent arrays of single-mode laser diodes at overall electrical efficiencies of 50%. These coherent laser diode arrays will provide not only the power for each sub-aperture, but also the multi-kilohertz bandwidth, sub-centimeter-resolution adaptive optics required to efficiently propagate high power laser beams through the turbulent atmosphere at distances up to multiple kilometers. Such capability is required for Army ground-to-ground and Navy missile defense applications. The program will construct a 2-dimensional array of laser diodes coherently combined at an overall electrical efficiency of more than 40%. The near-field intensity of the array will exceed 300 watts/cm2, to insure compatibility with driving sub-apertures demonstrated in other DARPA programs.
Document Details
- Document Type
- Accomplishment
- Publication Date
- Oct 01, 2011
- Source ID
- 566a51e233d188f0d54391bf7fac2172
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- Root: TACTICAL TECHNOLOGY