Abstract
Optical memories based on spectral hole burning (SHB) and stimulated photon echoes (SPE) are attracting much attention. Both approaches add an extra dimension for addressing (frequency and temporal dimension respectively) to the spatial dimensions. With these concepts the storage density can become 103 – 106 times higher than in conventional optical memories. In both approaches, the ratio of the inhomogeneous line width to the homogeneous line width of the ions activated in the storage process determines the improvement in storage density. Compared to the SHB approach, SPE has certain advantages including high R/W rate and ability to process the stored (spatial as well we temporal) information. Using SPE, the authors have experimentally realised the AND, OR and NOT logical operations [1,2]. Further all optical processing, such as temporal pattern recognition, can be done using SPE.
© 1996 IEEE
PDF ArticleMore Like This
U. Elman, B. Luo, and S. Kroll
CTuJ3 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 1996
Baozhu Luo, Ulf Elman, Stefan Kroll, Rudiger Paschotta, and Anne Tropper
CML3 Conference on Lasers and Electro-Optics (CLEO:S&I) 1998
Sean A. Passino, Yutaka Nagasawa, Taiha Joo, and Graham R. Fleming
WD.4 International Conference on Ultrafast Phenomena (UP) 1996