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Center Independent Research & Development: GSFC IRAD

Phase-mirror Enabled Efficient and On-demand Broadcast Technology for Space Laser Communication

Active Technology Project

Project Introduction

We will develop an on-demand and real-time reconfigurable broadcast technology for near-Earth space laser communication envisioned by NASA. By using a programmable phase-mirror, a communication laser beam from the master satellite can be dynamically diffracted into multiple narrow-width beams, and each narrow-width beam tracks a separate receiving satellite to deliver information. The advantages of this broadcast technology include highly efficient and secure (only targets illumination), more compact (by sharing one phase mirror aperture), and ease to modify the delivering approach of signals (programmable phase mirror).

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