发布求助
文献互助 智能选刊 最新文献

Optical Computing最新文献

筛选
英文 中文
Some practical issues associated with the design and fabrication of high contrast quantum well modulator arrays 高对比度量子阱调制器阵列设计与制造的一些实际问题
Optical Computing Pub Date : 1991-03-01 DOI: 10.1364/optcomp.1991.md1
G. Parry, M. Whitehead, P. Zouganeli, A. Rivers, K. Woodbridge, J. Roberts, C. Button
{"title":"Some practical issues associated with the design and fabrication of high contrast quantum well modulator arrays","authors":"G. Parry, M. Whitehead, P. Zouganeli, A. Rivers, K. Woodbridge, J. Roberts, C. Button","doi":"10.1364/optcomp.1991.md1","DOIUrl":"https://doi.org/10.1364/optcomp.1991.md1","url":null,"abstract":"Asymmetric Fabry-Perot modulators offer the prospect of high contrast (>20dB) and low voltage (<5V) operation as well as useful optical bandwidths. This paper discusses some of the practical problems of designing and fabricating arrays of devices to meet these specifications.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114521349","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}
引用次数: 2
Adaptive two-dimensional quadratic associative memory using holographic lenslet arrays 基于全息透镜阵列的自适应二维二次联想存储器
Optical Computing Pub Date : 1989-03-01 DOI: 10.1364/optcomp.1989.md3
J. Jang, Sang-Yung Shin, Soo-Young Lee
{"title":"Adaptive two-dimensional quadratic associative memory using holographic lenslet arrays","authors":"J. Jang, Sang-Yung Shin, Soo-Young Lee","doi":"10.1364/optcomp.1989.md3","DOIUrl":"https://doi.org/10.1364/optcomp.1989.md3","url":null,"abstract":"Optical implementation of two-dimensional (2-D) quadratic associative memory (QAM) that needs parallel N6 weighted interconnections is described. We show that fully adaptive interconnections for the 2-D QAM are realizable by using two 2-D holographic lenslet arrays and two spatial light modulators (SLM’s). Thus two extensions of our previous work1 are proposed; they are learning capability and storage of 2-D images in QAM. We also show basic experimental results for the 2-D QAM.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121805539","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}
引用次数: 0
A Design Space Analysis of a Lenslet Based Optical Relay System Interconnecting Smart Pixel Arrays 基于小透镜的智能像素阵列光中继系统设计空间分析
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1995.omd3
D. Rolston, B. Robertson, D. Plant, H. S. Hinton
{"title":"A Design Space Analysis of a Lenslet Based Optical Relay System Interconnecting Smart Pixel Arrays","authors":"D. Rolston, B. Robertson, D. Plant, H. S. Hinton","doi":"10.1364/optcomp.1995.omd3","DOIUrl":"https://doi.org/10.1364/optcomp.1995.omd3","url":null,"abstract":"Smart Pixel based free-space optical interconnects offer a method of establishing high connection densities, and subsequently large data throughputs, in applications such as ATM networks, massively parallel computers, and photonic backplanes. The design of these optical systems require a means of quantifying the trade-offs between the effective processing power of a Smart Pixel array and the optical interconnection geometry [1,2,3]. In fight of this interest, we have developed a simple model which outlines the trade-offs between optical connection density and Smart Pixel intelligence. The objective of the model is to define a reasonable operating region where the following parameters are optimized: the number of transistors per Smart Pixel, the optoelectronic device window size, the lenslet size, the f/number of the lenslet, and the optical connection density.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"39 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":"124417227","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}
引用次数: 1
Optical Matrix Multiplication using Grating Degeneracy in Photorefractive Media 光折变介质中光栅简并的光学矩阵乘法
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1993.owd.4
C. Gu, S. Campbell, P. Yeh
{"title":"Optical Matrix Multiplication using Grating Degeneracy in Photorefractive Media","authors":"C. Gu, S. Campbell, P. Yeh","doi":"10.1364/optcomp.1993.owd.4","DOIUrl":"https://doi.org/10.1364/optcomp.1993.owd.4","url":null,"abstract":"Matrix-matrix multiplication is an important operation in many computational and processing applications including correlation, convolution, Fourier transform of temporal signals and 2-dimensional images.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"399 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":"124721538","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}
引用次数: 0
Analysis of Parasitic Front-end Capacitance and Thermal Resistance in Hybrid Flip-chip-bonded GaAs SEED/Si CMOS Receivers 倒装晶片键合GaAs SEED/Si CMOS接收器寄生前端电容及热阻分析
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1995.otue17
R. A. Novotny, A. Lentine, D. B. Buchholz, A. Krishnamoorthy
{"title":"Analysis of Parasitic Front-end Capacitance and Thermal Resistance in Hybrid Flip-chip-bonded GaAs SEED/Si CMOS Receivers","authors":"R. A. Novotny, A. Lentine, D. B. Buchholz, A. Krishnamoorthy","doi":"10.1364/optcomp.1995.otue17","DOIUrl":"https://doi.org/10.1364/optcomp.1995.otue17","url":null,"abstract":"Smart pixels[1] consisting of photodetectors, electronic circuitry, and E/O converters utilizing free-space optical interconnections show promise to relieve the interconnection bottleneck in computing and switching systems.[2] To reduce the propagation delay through a smart pixel, the receiver requires a fast response, hence it is essential to reduce the front end capacitance (Cin). Cin has three main components: the photodiode active area, the amplifier input, and the stray interconnect capacitance (Cs). The FET-SEED technology minimizes Cs through the monolithic integration of photodetectors, modulators and electronic circuitry.[3][4]] However, current system demonstrations using FET-SEEDs have been limited to using medium scale integration (MSI) smart pixel arrays. Hybrid integration of VLSI Si CMOS electronic circuitry with photodetectors, modulators, or emitters is an attractive approach in obtaining VLSI smart pixels in the near term.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"35 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":"124935491","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}
引用次数: 5
Bandwidth as a Virtual Resource In Reconfigurable Optical Interconnections 可重构光互连中的虚拟资源——带宽
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1993.ofa.4
D. Chiarulli, S. Levitan, R. Melhem, C. Qiao
{"title":"Bandwidth as a Virtual Resource In Reconfigurable Optical Interconnections","authors":"D. Chiarulli, S. Levitan, R. Melhem, C. Qiao","doi":"10.1364/optcomp.1993.ofa.4","DOIUrl":"https://doi.org/10.1364/optcomp.1993.ofa.4","url":null,"abstract":"This work is focused on reconfigurable optoelectronic interconnection networks: networks constructed of optical waveguides in which messages are switched or routed by means of optoelectronic devices [Goo89].","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"74 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":"126163839","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}
引用次数: 4
Cellular processing with diffractive optical elements 用衍射光学元件进行细胞处理
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1993.othd.6
Andy Kirk, Tomohira Tabata, M. Ishikawa
{"title":"Cellular processing with diffractive optical elements","authors":"Andy Kirk, Tomohira Tabata, M. Ishikawa","doi":"10.1364/optcomp.1993.othd.6","DOIUrl":"https://doi.org/10.1364/optcomp.1993.othd.6","url":null,"abstract":"As the number of nodes within a parallel processing system is increased it becomes more difficult to achieve a global interconnection between them.","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":"123314899","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}
引用次数: 0
InGaAs Transceivers for Smart Pixels 智能像素的InGaAs收发器
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1995.otuc3
D. Neilson, D. Goodwill, L. C. Wilkinson, F. Tooley, A. Walker, C. Stanley, M. Mcelhinney, F. Pottier
{"title":"InGaAs Transceivers for Smart Pixels","authors":"D. Neilson, D. Goodwill, L. C. Wilkinson, F. Tooley, A. Walker, C. Stanley, M. Mcelhinney, F. Pottier","doi":"10.1364/optcomp.1995.otuc3","DOIUrl":"https://doi.org/10.1364/optcomp.1995.otuc3","url":null,"abstract":"A promising route for the construction of smart pixels is to flip-chip bond III-V semiconductor devices as detectors[1] and modulators onto silicon circuitry. InGaAs quantum well devices grown on GaAs substrates and operating at around 1 μm provide a good option for the III-V devices since there are high power lasers available including Nd:YLF at 1047nm and substrate removal is not necessary. Silicon CMOS is attractive for the electronics since it is a mature technology, allows very high packing density and has the low power consumption necessary for systems based on many channels each with a high degree of smartness. In our work we have so far used 1 μm double metal n-well CMOS and future devices will be fabricated using 0.7/0.8 μm CMOS. The CMOS process limits the available voltage swing for driving the InGaAs modulators to 5 V.","PeriodicalId":302010,"journal":{"name":"Optical Computing","volume":"87 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":"122986861","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}
引用次数: 2
High-Speed Parallel Optical Processors of Photorefractive GaAs 光折变砷化镓的高速并行光处理器
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1989.mg4
Li-Jen Cheng, Duncan T. H. Liu
{"title":"High-Speed Parallel Optical Processors of Photorefractive GaAs","authors":"Li-Jen Cheng, Duncan T. H. Liu","doi":"10.1364/optcomp.1989.mg4","DOIUrl":"https://doi.org/10.1364/optcomp.1989.mg4","url":null,"abstract":"It is known that a photorefractive crystal can act as a phase conjugate mirror via four-wave mixing or self-pumped phase conjugation. The use of a phase conjugate mirror in the interferometric system for parallel mathematic operations has been reported[1-6]. The photorefractive materials used are BaTiO3[l-5] and Bi12SiO20[6]. The phase conjugation process can improve dynamic stability by reducing the sensitivity to beam path fluctuations and alignment. However, the slow responses of these materials make operations not only slow, but also sensitive to environmental fluctuations, such as air turbulence and vibrations of time constants shorter than those of the material response time.","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":"129741527","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}
引用次数: 0
Processing Unit for Stacked Optical Computing System: Discrete Digital Correlator 堆叠光学计算系统的处理单元:离散数字相关器
Optical Computing Pub Date : 1900-01-01 DOI: 10.1364/optcomp.1995.omc8
H. Kawai, Y. Takeuchi
{"title":"Processing Unit for Stacked Optical Computing System: Discrete Digital Correlator","authors":"H. Kawai, Y. Takeuchi","doi":"10.1364/optcomp.1995.omc8","DOIUrl":"https://doi.org/10.1364/optcomp.1995.omc8","url":null,"abstract":"We have proposed the stacked optical computing system (STOCS)1 which has advantages of mechanical stability and miniaturization compared to conventional optical systems using lenses and beam splitters. The system has many processing units (STOCS-PUs) which consist of planar optical devices such as a functional interconnection device (FIC), an optical addressable spatial light modulator (SLM), and a reading light supplier (RLS)1,2. Functions of FICs are image splitting, image combining and space invariant/variant other interconnections. Output images from the FIC are written on the writing side of the SLM. The RLS is placed on the SLM, and it supplies reading light to the reading side of the SLM and transmits reading images from the SLM. We demonstrated reading out function of the RLS, and images directly written on the SLM were successfully read out2.","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":"129782897","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}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信