Sensitivity of volume holographic optical computing

Yao Yi; Liang-cai Cao; Tian-xiang Zheng; Wei Guo; Qing-sheng He; Guo-fan Jin

doi:10.1117/12.2035037

20 August 2013 Sensitivity of volume holographic optical computing

Yao Yi, Liang-cai Cao, Tian-xiang Zheng, Wei Guo, Qing-sheng He, Guo-fan Jin

Proceedings Volume 8913, International Symposium on Photoelectronic Detection and Imaging 2013: Optical Storage and Display Technology; 891312 (2013) https://doi.org/10.1117/12.2035037
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

Volume holographic correlator (VHC) calculates the inner product between two data pages through parallel optical correlation. It has great potential in the field of information processing and real-time identification because of its high storage density, integration of storing and computing, and multi-channel parallel processing ability. Current studies on the improvements of VHC mainly focus on the processing speed and channel uniformity. However, the accuracy of the VHC is mainly related to the minimum output intensity varying with the spatial light modulator (SLM) pixel intensity, which is the sensitivity of the VHC. In this work, the Minimum Pixel Block Size (MPBS) is proposed to characterize the sensitivity of the VHC. The Effective Number of Pixels (ENP) is employed to evaluate the optical computing ability, which is more accurate compared with traditional calculating method based on the pixel number of the SLM. The theoretical and experimental results are instructive in the system design. Desired system performance can be achieved by optimizing the system parameters.

Citation Download Citation

Yao Yi, Liang-cai Cao, Tian-xiang Zheng, Wei Guo, Qing-sheng He, and Guo-fan Jin "Sensitivity of volume holographic optical computing", Proc. SPIE 8913, International Symposium on Photoelectronic Detection and Imaging 2013: Optical Storage and Display Technology, 891312 (20 August 2013); https://doi.org/10.1117/12.2035037

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KEYWORDS

Spatial light modulators

Charge-coupled devices

Holography

Volume holography

Optical signal processing

Optical computing

Optical correlators

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