Polarization Encoding for Digital Holographic Storage
| Autor: | Tatsuya Maruyama, Jiro Minabe, Ishii Tsutomu, Katsunori Kawano, Shin Yasuda |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Physics
Physics and Astronomy (miscellaneous) Pixel Holographic storage Orthogonal polarization spectral imaging business.industry General Engineering Holography Subtraction General Physics and Astronomy Binary number Polarization (waves) law.invention Optics law Error detection and correction business |
| Zdroj: | Japanese Journal of Applied Physics. 41:1855-1859 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.1143/jjap.41.1855 |
| Popis: | We have proposed polarization encoding for digital holographic storage, in which each pixel or bit encodes two orthogonal polarization states, 0 and 90 degrees, corresponding to binary 1 and 0, respectively. We recorded the polarization-encoded page within an azobenzene-containing polyester film that is capable of recording arbitrary polarization states. After retrieval from the hologram, the polarization-encoded page was divided into mutually orthogonal polarization components. The two polarization components had an intrapage variation, and their bit error rates (BERs) were estimated to be 10-3 and 10-5. Subsequently, to remove the intrapage variation, we calculated the difference between the two polarization components. The intrapage variation successfully decreased on the subtraction image, and its BER was improved to 10-7. Therefore, this method is of great use for eliminating intrapage variations on a reconstructed data page. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|