Wideband Holographic Digital Recording and Reproduction. Phase IV.
Abstract
This study effort evaluates potential improvements to the performance of the Wideband Recorder (WBR) system. These potential improvements are in the areas of bit error rate (BER), data packing density, and system optical power efficiency. Improvements to corrected BER which can be obtained by deeper interleaving of the recorded codewords are described and data from experiments simulating this process are documented. A potential data packing density increase from a modification of the intensity profile of the recording beam is described and experimental results are presented. A reduction in raw BER which can be obtained by reduced data crosstalk is predicted, and the results of testing a new, low-crosstalk Acousto-Optic Page Composer (multichannel optical modulator) are presented. Finally a modification to the system's optical path which can reduce the optical power required for data recording is discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1980
- Accession Number
- ADA086265
Entities
People
- C. A. Shuman
- L. M. Ralston
Organizations
- Harris Corporation