Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1991.me24
H. Herzig, D. Prongué, P. Ehbets, R. Dändliker
{"title":"Design rules for fanout elements recorded as volume holograms","authors":"H. Herzig, D. Prongué, P. Ehbets, R. Dändliker","doi":"10.1364/optcomp.1991.me24","DOIUrl":"https://doi.org/10.1364/optcomp.1991.me24","url":null,"abstract":"Optical fanout elements split a single laser beam into a regular array of equally intense light spots in one- or two-dimensions. They are used in many applications of modern optics, such as parallel optical processing and fiber optic communication. This paper deals with the recording of efficient fanout elements as volume holograms. We have applied coupled wave theory to determine how efficiency and uniformity of the fanout depend on the recording conditions.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114932023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1993.ofa.2
C. Carey, Selviah, J. Midwinter, S. Song, Eh Lee
{"title":"Four-foci slanted axis Fresnel lens for planar optical perfect shuffle","authors":"C. Carey, Selviah, J. Midwinter, S. Song, Eh Lee","doi":"10.1364/optcomp.1993.ofa.2","DOIUrl":"https://doi.org/10.1364/optcomp.1993.ofa.2","url":null,"abstract":"Planar optical technology offers a promising compact and robust approach for performing complex optical interconnects for silicon VLSI and WSI circuits.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116865305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1995.lwa2
R. Athale
{"title":"Device-Architecture Interaction in Optical Computing","authors":"R. Athale","doi":"10.1364/optcomp.1995.lwa2","DOIUrl":"https://doi.org/10.1364/optcomp.1995.lwa2","url":null,"abstract":"Device technologies and processor architectures exert a strong influence on each other in optical computing. I will discuss examples of successful and unsuccessful interactions between these two communities. The role of the CO-OP in enhancing this interaction will be outlined.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117074779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1995.otue11
Hiroyuki Arima, I. Tohyama, M. Itoh, T. Yatagai, M. Mori
{"title":"Electrooptic Parallel Interfacing for Neural Computing and a Nonlinear Organic Spatial Light Modulator","authors":"Hiroyuki Arima, I. Tohyama, M. Itoh, T. Yatagai, M. Mori","doi":"10.1364/optcomp.1995.otue11","DOIUrl":"https://doi.org/10.1364/optcomp.1995.otue11","url":null,"abstract":"Optical neural network computing is of great interest in terms of massively parallel computing. In recent years, CCD cameras, optoelectronic smart pixels and spatial light modulators (SLMs) with the high spatial resolution are reported[1,2]. In some cases, however, the interface between 2-D inputs and parallel neural computing systems or between the computing systems and output devices is not parallel but serial. The bandwidth of the interface between the I/O systems and the main computing system is limited and therefore this limits the performance of the total system. Such a problem is sometimes called I/O bottleneck. An all-optical parallel neural computing system with highly parallel I/O capability has been reported[3,4]. The system of the holographic associative memory, however, has limited functions and performances, because of less flexibility of optical systems. An alternative approach is to employ functional optoelectronic systems for wide-bandwidth input data, which can compress the data for the neural computing system. In this paper, we present network system consisting of an electronic parallel interface or preprocessor is described, and a generic interface device using nonlinear organic material for such a system is finally proposed.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117297845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Krishnamoorthy, J. Ford, K. Goossen, J. A. Walker, A. Lentine, L. D’asaro, S. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. Dahringer, L. Chirovsky, F. Kiamilev, G. Aplin, R. Rozier, D. A. Miller
{"title":"Implementation of a Photonic Page Buffer Based on GaAs MQW Modulators Bonded Directly over Active Silicon VLSI Circuits","authors":"A. Krishnamoorthy, J. Ford, K. Goossen, J. A. Walker, A. Lentine, L. D’asaro, S. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. Dahringer, L. Chirovsky, F. Kiamilev, G. Aplin, R. Rozier, D. A. Miller","doi":"10.1364/optcomp.1995.pd2","DOIUrl":"https://doi.org/10.1364/optcomp.1995.pd2","url":null,"abstract":"The tremendous progress in high performance Very-Large Scale Integrated circuit (VLSI) technology has made possible the incorporation of several million transistors onto a single silicon chip with on-chip clock rates of 200 MegaHertz (MHz). By the end of decade, the integration density for silicon Complementary Metal Oxide Semiconductor (CMOS) is expected to be over 20 million transistors and the projected on-chip clock rate is 500 MHz. This enormous bandwidth that will be available for computation and switching on a silicon integrated circuit will create a huge bottleneck for Input and Output (I/O) to the VLSI circuit. Technologies that are being developed at AT&T Bell Laboratories, now exist for attaching GaAs Multiple Quantum Well (MQW) photodetectors and light-modulators onto a prefabricated silicon integrated circuit using a well-established hybrid flip-chip bonding technique followed by substrate removal of the GaAs chip to allow surface-normal operation of the optical modulators at 850nm [1]. From a systems point of view, the demands made of optoelectronic integration method are (i) that the silicon integrated circuit be state-of-the-art, (ii) the circuit be unaffected by the integration process, (iii) that the design and optimization of the circuit proceed independently of the placement and bonding to the optical I/O. The first two goals have been achieved in reference 1, and this technique has been effectively applied to simple switching nodes for a smart-pixel based photonic switch in reference 2. In this paper we further achieve the third goal by demonstrating for the first time that modulators can be bonded directly above active submicron CMOS transistors (figure 1), and by applying the technique to the demonstration of a high-density 2Kbit first-in first-out (Fifo) page buffer circuit.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116336508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1995.owc1
A. Lohmann
{"title":"The History of Optical Computing : A Personal Perspective","authors":"A. Lohmann","doi":"10.1364/optcomp.1995.owc1","DOIUrl":"https://doi.org/10.1364/optcomp.1995.owc1","url":null,"abstract":"For me the history of optical computing can be divided into several phases, which will illustrate by examples. The phase transitions mark changes of my personal attitude towards optics in general and to information optics in particular.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122074836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1989.tuc3
F. Lin
{"title":"Optical Holographic Interconnection Networks for Parallel and Distributed Processing","authors":"F. Lin","doi":"10.1364/optcomp.1989.tuc3","DOIUrl":"https://doi.org/10.1364/optcomp.1989.tuc3","url":null,"abstract":"With the rapid advances in technology, it is now feasible to build a system consisting of hundreds or thousands of processors [1-3]. Processors in such a parallel/distributed system may spend a considerable amount of time just communicating among themselves unless an efficient and fast interconnection network connects them. The first method for realizing optical interconnections that comes to mind is by means of optical fibers. However, optical fibers are not necessarily the ideal solution for large-scale multicomputer systems, since it requires a physical path for the interconnection between every two processors, and rather inflexible path at that.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"2017 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127544862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1989.tuh2
D. Gookin, M. H. Berry
{"title":"Optical Transversal Filter With Variable Weights","authors":"D. Gookin, M. H. Berry","doi":"10.1364/optcomp.1989.tuh2","DOIUrl":"https://doi.org/10.1364/optcomp.1989.tuh2","url":null,"abstract":"We describe an optical transversal filter constructed from off-the-shelf components. The filter is comprised of fiber optics and integrated optical devices. This filter differs significantly from previously constructed filters which all had fixed tap weights,1-3 usually of value unity. An approach used to make fixed weight taps was to produce dielectric mirrors directly in the fiber.3 All of these systems were limited by the inflexibility of their weighting scheme. This limitation adversely affects the filter performance in two ways. First, it is not possible to change the response function of the filter once the filter has been made. Second, it is not possible to correct for tap weight errors. When a fiber optic transversal filter is built, by any technique, there will be some error in the value of the loss and the delay between taps. Fixed weight systems have no technique for self correction.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129925447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1993.owb.3
S. Esener
{"title":"3-D Optical Memories","authors":"S. Esener","doi":"10.1364/optcomp.1993.owb.3","DOIUrl":"https://doi.org/10.1364/optcomp.1993.owb.3","url":null,"abstract":"Summary not available at time of printing.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129220135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical ComputingPub Date : 1900-01-01DOI: 10.1364/optcomp.1995.otub4
A. Pu, R. Denkewalter, D. Psaltis
{"title":"Robot Navigation Using a Peristrophic Holographic Memory","authors":"A. Pu, R. Denkewalter, D. Psaltis","doi":"10.1364/optcomp.1995.otub4","DOIUrl":"https://doi.org/10.1364/optcomp.1995.otub4","url":null,"abstract":"In recent years there has been a resurgence of interest in holographic memories. Most of the recent experiments in holographic storage have been in LiNbO3, in which up to 10,000 holograms have been stored in one location [1], or the DuPont photopolymer in which 1,000 holograms were stored [2], A technique called peristrophic multiplexing was combined with conventional angle multiplexing to store the 1,000 holograms in the polymer which has a thickness of only 100 microns. Most of the development of holographic memories is aimed at digital computer storage. In this paper we focus instead on the application of holographic memories to image processing. Specifically we use the peristrophic system as an optical database to store images to navigate a small car autonomously along specified paths. This experiment suggests that the two best features of holographic storage, capacity and parallel access, can be put to good use in real time machine vision applications.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128875093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}