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Seventh Topical Meeting on Integrated and Guided-Wave Optics最新文献

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Depolarization in Glass Waveguides 玻璃波导的去极化
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.wd5
E. Garmire, K. Honda
{"title":"Depolarization in Glass Waveguides","authors":"E. Garmire, K. Honda","doi":"10.1364/igwo.1984.wd5","DOIUrl":"https://doi.org/10.1364/igwo.1984.wd5","url":null,"abstract":"We report depolarization in glass channel waveguides due to deviations in waveguide sidewalls. The measurement of depolarization is of concern for integrated optics devices such as beam splitters which use isotropic materials in applications requiring polarization preservation.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"6 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":"130675215","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
Acoustooptic Interaction in A LiNbO3 Spherical Waveguide LiNbO3球面波导中的声光相互作用
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.tub2
Q. Li, C. Tsai, S. Sottini, C. Lee
{"title":"Acoustooptic Interaction in A LiNbO3 Spherical Waveguide","authors":"Q. Li, C. Tsai, S. Sottini, C. Lee","doi":"10.1364/igwo.1984.tub2","DOIUrl":"https://doi.org/10.1364/igwo.1984.tub2","url":null,"abstract":"Recent progress on both fabrication techniques and performances of optical waveguides and individual active devices have been most significant. Nevertheless, undesirable performance of the present planar waveguide lenses remains to be one of the major obstacles toward eventual realization of planar integrated optic modules and circuits for wideband signal processing applications. The present planar waveguide lenses suffer from undesirable performance characteristics that include small light beam aperture, high optical loss, critical tolerance in lens placement and separation, and long focal length. Large focal length will result in a large substrate size and, thus, high optical through-put loss, severe waveguide scattering, and high ultimate cost. In this paper we report on a LiNbO3 spherical waveguide structure that simultaneously serves to guide, collimate, and focus the light beams.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"5 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":"131890712","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
Fused-Fiber-Array Structure and its Application to Polarizing Directional Coupler 融合光纤阵列结构及其在偏振定向耦合器中的应用
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.thc2
M. Kawachi, M. Kobayashi, J. Noda
{"title":"Fused-Fiber-Array Structure and its Application to Polarizing Directional Coupler","authors":"M. Kawachi, M. Kobayashi, J. Noda","doi":"10.1364/igwo.1984.thc2","DOIUrl":"https://doi.org/10.1364/igwo.1984.thc2","url":null,"abstract":"Fiber-optic devices such as polarizers and directional couplers are required for single-mode fiber communications and fiber sensor systems. In order to fabricate these fiber-optic devices, it is necessary to modify the fiber structures. Such modifications have been usually achieved by etching, polishing or fusion/tapering of the fibers.1)","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","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":"134137886","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
4 GHz GaAs Photoconductive Mixer 4 GHz GaAs光导混频器
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.tha2
D. Lam, R. MacDonald
{"title":"4 GHz GaAs Photoconductive Mixer","authors":"D. Lam, R. MacDonald","doi":"10.1364/igwo.1984.tha2","DOIUrl":"https://doi.org/10.1364/igwo.1984.tha2","url":null,"abstract":"Heterodyne detection, in which an intensity modulated optical signal is mixed with an electrical signal, has been demonstrated in various forms [1-3]. Of particular importance, an InP photoconductor has been used as a mixer through the gating of an electrical signal applied to the photoconductor by means of optically generated carriers. This type of mixer makes use of Auston [4] switches whereby the switching is introduced optically and the signal to be gated is introduced electrically. We refer to this type of mixer as \"optically gated\". In contrast the mixer reported here is \"electrically gated\". It works on the reverse principle in that the signal to be gated is introduced optically and the gating is achieved by varying the electrical bias of the mixer. The fact that the signals are introduced optically provides excellent isolation and subsequently permits the construction of broadband switching matrices [5] and the monolithic integration of photoconductive devices [6]. This mixer has been observed to operate at frequencies higher than 4 GHz, which is significantly greater than that reported in other heterodyne schemes. Also, a signal gain of 17 dB over that of conventional detection under a DC bias condition has been achieved.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"71 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":"134303896","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
Permanent Low Loss Coupling of Single Mode Fiber Arrays to Waveguides 单模光纤阵列与波导的永久低损耗耦合
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.thc4
E. Murphy, T. Rice, G. Harvey, P. Read
{"title":"Permanent Low Loss Coupling of Single Mode Fiber Arrays to Waveguides","authors":"E. Murphy, T. Rice, G. Harvey, P. Read","doi":"10.1364/igwo.1984.thc4","DOIUrl":"https://doi.org/10.1364/igwo.1984.thc4","url":null,"abstract":"Over the past few years, a wide range of guided wave devices have been demonstrated in LiNbO3 and glass. The next step in the development of guided wave technology is to integrate several devices on a single substrate and to use the integrated device in a practical application. To this end, there is a clear need to further explore methods for permanently bonding large linear arrays of single mode fibers to waveguides. The principal challenge is to develop a technique that can maintain the required submicron accuracy over distances on the order of several millimeters. In reference 1, we reported on the attachment of V-grooved silicon chip arrays (with two fibers per array) to waveguides in LiNbO3. Here, we report on the extension of this technique to larger arrays. Specifically, we have permanently bonded arrays of six and twelve fibers to both ends of straight waveguides in lithium niobate. In both cases, low excess loss (average 0.3dB per interface) was measured. These are the largest arrays and the lowest excess losses reported in the literature. The six element structure (fiber-waveguide-fiber) was subjected to environmental testing with favorable results.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"240 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":"124296148","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
A Six Channel Single Mode Wavelength Multiplexer With A Waveguide Concentrator 带波导集中器的六通道单模波长复用器
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.thd5
W. Minford, J. Lipson, E. Murphy, T. Rice, R. Linke
{"title":"A Six Channel Single Mode Wavelength Multiplexer With A Waveguide Concentrator","authors":"W. Minford, J. Lipson, E. Murphy, T. Rice, R. Linke","doi":"10.1364/igwo.1984.thd5","DOIUrl":"https://doi.org/10.1364/igwo.1984.thd5","url":null,"abstract":"Devices based on diffraction gratings offer the only clear vehicle for progressing to many channels of wavelength multiplexing.1 This is because the loss in any channel is independent of the total number of channels. In single mode implementations the critical device is the multiplexer because, unlike the demultiplexer, the input and output fibers must have nearly identical cores. This results in pass-bands with a Gaussian shape. As the dispersion of the lens-grating combination is linear the ratio of channel width to channel separation is maximized when the cores are nearly close packed. For single mode it is impractical to accomplish this with actual fiber because the outer diameters become unacceptably small. The alternative is to obtain the required separation using strip waveguides. The waveguides may have an initial spacing appropriate for fiber pigtailing which can then be gradually reduced to the desired value. In this summary we report on the first such implementation.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"81 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":"133636156","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
Multimode Lightwave Components with 2-D Arrayed Planar Microlens 二维阵列平面微透镜的多模光波分量
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.thc5
M. Oikawa, K. Iga, S. Misawa
{"title":"Multimode Lightwave Components with 2-D Arrayed Planar Microlens","authors":"M. Oikawa, K. Iga, S. Misawa","doi":"10.1364/igwo.1984.thc5","DOIUrl":"https://doi.org/10.1364/igwo.1984.thc5","url":null,"abstract":"There has been a problem on the mass-productivity of lightwave components, since very precise optical alignment and coupling are required. In order to overcome this problem, we proposed stacked planar optics1 where lightwave circuits are integrated with 2-D arrayed configuration by stacking 2-D array of optical devices and planar microlenses2. In this paper we describe, first, a newly developed 2-D array of planar microlens with reasonable size and N.A. applicable to wide variety of lightwave technical fields, and second, present some measured optical characteristic and finally demonstrate a branching component by the use of a microlens array.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"44 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":"130355103","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
Monolithically Integrated Dynamic-Single-Mode Coupled-Cavity Lasers 单片集成动态单模耦合腔激光器
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.tud4
L. Coldren, T. Koch
{"title":"Monolithically Integrated Dynamic-Single-Mode Coupled-Cavity Lasers","authors":"L. Coldren, T. Koch","doi":"10.1364/igwo.1984.tud4","DOIUrl":"https://doi.org/10.1364/igwo.1984.tud4","url":null,"abstract":"Recent results with cleaved-coupled-cavity (C3) lasers have soundly demonstrated the viability of the coupled-cavity concept far tunable single-frequency semiconductor lasers[1,2]. Previous work with monolithic groove-coupled two-section lasers[3,4] suffered in performance because of the use of gain-guided base material, which foiled both CW operation and the realization of extremely dean longitudinal mode spectra.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"89 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":"115567526","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
Optical Characterization of Low Losses GaAs Waveguides Fabricated by Localized Vapour Phase Epitaxy 局域气相外延制备低损耗GaAs波导的光学特性
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.thb2
M. Erman, N. Vodjdani
{"title":"Optical Characterization of Low Losses GaAs Waveguides Fabricated by Localized Vapour Phase Epitaxy","authors":"M. Erman, N. Vodjdani","doi":"10.1364/igwo.1984.thb2","DOIUrl":"https://doi.org/10.1364/igwo.1984.thb2","url":null,"abstract":"The feasibility of very low losses GaAs waveguides has been recently demonstrated [1] using localized vapour phase epitaxy. This paper deals with the optical assessment (attenuation, polarization and electrical field mapping of the eigenmodes) of various structures grown using this process. Experimental growth conditions are discussed in details in [2]. In short, the guides are grown selectively on bare parts of a GaAs substrate otherwise covered by a dielectric film. Since the growth rate is strongly anisotropic, polygonal cross sections of various forms can be obtained. An additional feature is the possibility of modulating the doping level of the epilayer. Fig. 1 gives an example of 3 typical structures on (100) GaAs along <110> azimuth. Optical confinement is varied from one type to another by changing the doping sequence. With respect to the \"classical\" rib type structure, these guides have a much better lateral confinement.","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"130 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":"128121316","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
Progress in Distributed Reflector Lasers 分布式反射激光器的研究进展
Seventh Topical Meeting on Integrated and Guided-Wave Optics Pub Date : 1900-01-01 DOI: 10.1364/igwo.1984.tuc1
Y. Suematsu
{"title":"Progress in Distributed Reflector Lasers","authors":"Y. Suematsu","doi":"10.1364/igwo.1984.tuc1","DOIUrl":"https://doi.org/10.1364/igwo.1984.tuc1","url":null,"abstract":"To overcome the effect of chromatic dispersion of single-mode fiber for high capacity optical fiber transmission at the lowest loss wavelength region of 1.55μm [1], semiconductor lasers with distributed reflectors operating in a fixed single-mode under rapid modulation have been developed [2]. Such DSM laser consists of tightly mode-controlled resonator, and is called as a dynamic-single-mode (DSM) laser or a single longitudinal mode laser[3].","PeriodicalId":208165,"journal":{"name":"Seventh Topical Meeting on Integrated and Guided-Wave Optics","volume":"26 3 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":"121207726","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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