|
Interaction of laser radiation with matter. Laser plasma
Storage density and signal/noise ratio in a binary frequency-selective optical memory utilising multistage optical spectral hole burning
P. V. Adamson Institute of Physics, University of Tartu, Estonia
Abstract:
The signal/noise ratio (SNR) of a thin-film optical memory with frequency multiplexing, based on multistage optical spectral hole burning, is compared with the SNR expected for single-stage hole burning. The dependences of the SNR on the single-frequency two-dimensional data storage density are obtained for various optical diffraction images in the focal plane. It is shown that a change from single-stage to multistage hole burning provides new opportunities for increasing the basic (in the absence of frequency multiplexing) storage density, which at the 0.5 μm wave-length can reach ~109 bits cm–2 . When the frequency multiplexing factor is ~103, the total storage density in two-dimensional carriers can rise to 1012 bit cm–2 .
Received: 09.04.1998
Citation:
P. V. Adamson, “Storage density and signal/noise ratio in a binary frequency-selective optical memory utilising multistage optical spectral hole burning”, Kvantovaya Elektronika, 25:9 (1998), 827–832 [Quantum Electron., 28:9 (1998), 806–811]
Linking options:
https://www.mathnet.ru/eng/qe1332 https://www.mathnet.ru/eng/qe/v25/i9/p827
|
Statistics & downloads: |
Abstract page: | 104 | Full-text PDF : | 54 | First page: | 1 |
|