All-optical dynamic correction of distorted communication signals using a photorefractive polymeric hologram
Abstract
All-optical real-time dynamic correction of wave front aberrations for image transmission is demonstrated using a photorefractive polymeric hologram. The material shows video rate response time with a low power laser. High-fidelity, high-contrast images can be reconstructed when the oil-filled phase plate generating atmospheric-like wave front aberrations is moved at 0.3mm/s. The architecture based on four-wave mixing has potential application in free-space optical communication, remote sensing, and dynamic tracking. The system offers a cost-effective alternative to closed-loop adaptive optics systems.
- Publication:
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Applied Physics Letters
- Pub Date:
- April 2005
- DOI:
- Bibcode:
- 2005ApPhL..86p1103L
- Keywords:
-
- 42.40.Eq;
- 42.70.Jk;
- 42.70.Nq;
- 42.79.Sz;
- 42.30.Wb;
- 42.65.Hw;
- Holographic optical elements;
- holographic gratings;
- Polymers and organics;
- Other nonlinear optical materials;
- photorefractive and semiconductor materials;
- Optical communication systems multiplexers and demultiplexers;
- Image reconstruction;
- tomography;
- Phase conjugation;
- photorefractive and Kerr effects