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25 Years of GRIN in Rochester 25年的格林在罗切斯特
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gtua1
D. Moore
{"title":"25 Years of GRIN in Rochester","authors":"D. Moore","doi":"10.1364/giois.1994.gtua1","DOIUrl":"https://doi.org/10.1364/giois.1994.gtua1","url":null,"abstract":"Summary not available.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"19 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":"129361302","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
New Markets for GRIN Microlenses GRIN微透镜的新市场
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gwc1
M. Oikawa, Michael Wong
{"title":"New Markets for GRIN Microlenses","authors":"M. Oikawa, Michael Wong","doi":"10.1364/giois.1994.gwc1","DOIUrl":"https://doi.org/10.1364/giois.1994.gwc1","url":null,"abstract":"Substantial progress in optical fiber communication and optical processing has been made. A new class of optical components based on GRIN technology has led to the creation of innovative optical systems. These systems are characterized by packages which are compact, lightweight, and multifunctional. As a result, high optical performances are achieved by means equivalent to or better than conventional classical optics.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","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":"125859666","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 Y-branch Wavelength Multi/Demultiplexer by K+ and Ag+ Ion-exchange for λ=1.31 and 1.55μm-Device Fabrication and Measurement Results λ=1.31和1.55μm的K+和Ag+离子交换的y支波长多/解复用器
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gtuc3
F. Xiang, G. Yip
{"title":"A Y-branch Wavelength Multi/Demultiplexer by K+ and Ag+ Ion-exchange for λ=1.31 and 1.55μm-Device Fabrication and Measurement Results","authors":"F. Xiang, G. Yip","doi":"10.1364/giois.1994.gtuc3","DOIUrl":"https://doi.org/10.1364/giois.1994.gtuc3","url":null,"abstract":"An optical waveguide Y-branch, with a small branch angle and two asymmetric arms, can function as a wavelength multi/demultiplexer (see Fig.1)[1,2]. A small branch angle θ will cause the Y-branch to perform as a mode splitter. Two asymmetric arms, differing either in the geometric shape or refractive index, will yield two intersecting waveguide dispersion curves between the two wavelengths to be demultiplexed. The intersection is designed to be between λ2 = 1.31μm and λ1 = 1.55μm as shown in Fig.2. Thus, the effective index of arm 1 will be higher than that of arm 2 at λ1 = 1.55μm and lower at λ2 = 1.31μm. The waves at λ1 and λ2 from the main branch can then be separated into arm 1 and arm 2, respectively [2]. Generally, the stronger asymmetric two branch arms are, the higher will be the extinction ratios, which are defined as the ratios of the output power from the two arms.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"46 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":"134044436","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
The Effects of Lens Grin Profiles on Phakometric Measurements 透镜咧嘴轮廓对光度测量的影响
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gwb4
M. Moroney, M. Campbell, R. Munger, B. McCurdy
{"title":"The Effects of Lens Grin Profiles on Phakometric Measurements","authors":"M. Moroney, M. Campbell, R. Munger, B. McCurdy","doi":"10.1364/giois.1994.gwb4","DOIUrl":"https://doi.org/10.1364/giois.1994.gwb4","url":null,"abstract":"The in vivo dimensions and shape of the posterior crystalline lens surface in eyes are often calculated based on information taken from the image of that surface as viewed through the lens and the cornea. It is therefore necessary to choose a schematic eye model that successfully describes the optical properties of the interior of the lens in order to accurately determine the dimensions of its posterior surface. For simplicity the schematic eye models often assume that the refractive index of the lens is constant, although it is known to have a gradient of refractive index1. Evaluation of the resulting errors in calculations of the posterior lens surface dimensions have not previously been published. It will be shown that the gradient can have a profound effect on the image of the posterior lens surface of the lens in the Cichlid fish. The purpose of this paper is to investigate the effects of simplistic models on the calculations of the position, radius of curvature, and shape of the posterior lens surface in humans.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"13 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":"123886393","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
Structure and Composition of Grin Glasses for Ion Exchange 离子交换用Grin玻璃的结构和组成
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.pd2
Vladislav Ya. Livchits
{"title":"Structure and Composition of Grin Glasses for Ion Exchange","authors":"Vladislav Ya. Livchits","doi":"10.1364/giois.1994.pd2","DOIUrl":"https://doi.org/10.1364/giois.1994.pd2","url":null,"abstract":"The composition of glasses that are especially preferable for the fabrication of GRIN optical and acoustical components and for glass strengthening by ion exchange is presented.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"28 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":"127919404","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
Status of Optical Waveguide Devices by Ion Exchange 离子交换光波导器件的现状
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gtuc1
N. Fabricius
{"title":"Status of Optical Waveguide Devices by Ion Exchange","authors":"N. Fabricius","doi":"10.1364/giois.1994.gtuc1","DOIUrl":"https://doi.org/10.1364/giois.1994.gtuc1","url":null,"abstract":"In the recent years the fabrication of integrated optical waveguide components by ion exchange in glass becomes a well established technology. Examples of commercially available devices for telecommunication and sensor applications are given to show the reached status of quality and reliability.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"336 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":"115882002","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
Use of a Prism Coupler for the Determination of the Index Profiles of Ion-Exchanged Channel Waveguides 使用棱镜耦合器测定离子交换通道波导的折射率分布
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gtud2
M. N. Weiss, R. Srivastava
{"title":"Use of a Prism Coupler for the Determination of the Index Profiles of Ion-Exchanged Channel Waveguides","authors":"M. N. Weiss, R. Srivastava","doi":"10.1364/giois.1994.gtud2","DOIUrl":"https://doi.org/10.1364/giois.1994.gtud2","url":null,"abstract":"The K+-Na+ ion-exchange process (IEP) has long been recognized as an attractive technique for producing high-quality, low loss, graded refractive index (GRIN) optical waveguides in glass substrates. Devices produced by this technique are index compatible with silica fibers, and as a result, this technology has received considerable attention as a means of producing low-insertion loss integrated optic devices for use in fiber communications networks.1 Accurate design of such devices, generally comprised of one or more channel waveguides, requires a thorough characterization of the waveguide-forming process. Although planar K+-Na+ IEP waveguides have been studied extensively2, to date however, only limited characterization of channel waveguides has been performed.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"37 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":"131939600","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
Calculating of optical path length in inhomogeneous media - An alternative method 非均匀介质中光程长度的计算。一种替代方法
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gtub1
J. Puchalski
{"title":"Calculating of optical path length in inhomogeneous media - An alternative method","authors":"J. Puchalski","doi":"10.1364/giois.1994.gtub1","DOIUrl":"https://doi.org/10.1364/giois.1994.gtub1","url":null,"abstract":"An alternative method for calculating of optical path length in inhomogeneous media is presented. This method may be used with the three component and the four component ray-trace schemes considered ealier2,3.The method is based on a series expansion of the refractive index of the medium for second ray-trace scheme divided by the third optical direction cosine as a function of six suitable ray-trace parameters from a given, three adjacent Runge-Kutta points.\u0000 A comparison with previous method which was applied for the three component ray-trace scheme is made.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"84 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":"126215788","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
Modelling, Design Optimization and Fabrication of Guided-Wave Photonic Devices in Glass 玻璃中导波光子器件的建模、设计优化与制造
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gtud1
G. Yip
{"title":"Modelling, Design Optimization and Fabrication of Guided-Wave Photonic Devices in Glass","authors":"G. Yip","doi":"10.1364/giois.1994.gtud1","DOIUrl":"https://doi.org/10.1364/giois.1994.gtud1","url":null,"abstract":"Design optimization is very important to achieve high performance of integrated optical devices. For accurate designs, detailed information on the characteristics of slab and channel guides made in glass substrates must be known in relation to their fabrication conditions since these waveguides often form the basic units in more complicated waveguide structures used in devices. This paper will outline the characterization and modelling procedures of such waveguides, and present the methodology of design optimization of waveguide devices. In particular, the beam propagation method (BPM) combined with the effective index method (EIM) will be discussed. Illustrative examples will be given on power dividers, wavelength multi/demultiplexers and vertical directional couplers made by K+-ion exchange in glass. Comparisons between the measured performance figures of fabricated devices and design predictions will be presented.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"82 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":"121731654","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 New Put-in Micro-connector-II Using GRIN Microlenses 一种使用GRIN微透镜的新型置入式微连接器- ii
Gradient Index Optical Systems Pub Date : 1900-01-01 DOI: 10.1364/giois.1994.gwc3
T. Kato, T. Baba, K. Iga
{"title":"A New Put-in Micro-connector-II Using GRIN Microlenses","authors":"T. Kato, T. Baba, K. Iga","doi":"10.1364/giois.1994.gwc3","DOIUrl":"https://doi.org/10.1364/giois.1994.gwc3","url":null,"abstract":"For the realization of future large-scale optical fiber communication systems, one of the most important issues is the light coupling between optical fibers and optical components, e.g., semiconductor lasers, OEIC’s, optical waveguides, and optical couplers. However, the individual alignment of optical components for high efficiency optical coupling needs precise adjustment, and several authors have reported on integrated couplers [1] [2]. However, most of them still require some level of precise alignment.","PeriodicalId":203841,"journal":{"name":"Gradient Index Optical Systems","volume":"42 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":"115662552","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
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