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1. 发明授权

US06733587B2 Process for fabricating an article comprising a magneto-optic garnet material 有权
标题翻译：制造包含磁光石榴石材料的制品的方法
公开(公告)号：US06733587B2
公开(公告)日：2004-05-11
申请号：US10091002
申请日：2002-03-05
申请人： Charles David Brandle, Jr. , Vincent Jerome Fratello , Kathleen M. Paget , Shanthi Subramanian
发明人： Charles David Brandle, Jr. , Vincent Jerome Fratello , Kathleen M. Paget , Shanthi Subramanian
IPC分类号： C30B2402
CPC分类号： H01F10/245 , G02F1/093
摘要： Improvements in the production of high-performance latching magneto-optic garnet materials are provided. It has been recognized that high-Europium magneto-optic garnets will offer superior properties in devices such as isolators, circulators and interleavers. However, formation of, e.g., (BiEu)3(FeGa)5O12 on conventional, congruent composition, garnet substrates is difficult, due to poor lattice matching between the magneto-optic garnet and such conventional substrates. The invention addresses this problem, by utilizing a single crystal substrate composed essentially of a solid solution of two or more garnet materials. By use of a solid solution of two or more garnets, e.g., two congruent garnet compositions, an acceptable lattice parameter is able to be attained. Useful solid solutions include gadolinium scandium gallium garnet and gadolinium scandium aluminum garnet, or gadolinium scandium gallium garnet and terbium scandium gallium garnet.
摘要翻译：提供高性能闭锁磁光石榴石材料的生产改进。已经认识到，高铕磁光石榴石将在诸如隔离器，循环器和交织器的装置中提供优异的性能。然而，由于磁光石榴石和这种常规基板之间的格子匹配不良，难以形成例如（BiEu）3（FeGa）5 O 12的传统的等效组合物石榴石基材。本发明通过利用主要由两种或多种石榴石材料的固溶体组成的单晶基板来解决这个问题。通过使用两个或更多个石榴石的固溶体，例如两个一致的石榴石组合物，可以获得可接受的晶格参数。有用的固体溶液包括钆镓镓石榴石和钆矾铝石榴石，或钆镓石榴石和铽镓石榴石。

2. 发明授权

US6104529A Optical fiber communication system employing wide band crystal alloy light generation devices 失效
标题翻译：采用宽带晶体合金光发生器件的光纤通信系统
公开(公告)号：US6104529A
公开(公告)日：2000-08-15
申请号：US264657
申请日：1999-03-08
申请人： Charles David Brandle, Jr. , Lynn Frances Schneemeyer , Gordon Albert Thomas , William Larry Wilson
发明人： Charles David Brandle, Jr. , Lynn Frances Schneemeyer , Gordon Albert Thomas , William Larry Wilson
IPC分类号： H01S3/063 , H01S3/16 , H01S3/00
CPC分类号： H01S3/063 , H01S3/16 , H01S3/1603 , H01S3/162 , H01S3/1631 , H01S3/1655
摘要： In accordance with the invention, an improved optical communication system employs light-generating devices comprising a phonon-tuned crystal alloy host doped with an optically active atom. In one embodiment, the crystal alloy host and optically active atom respectively comprise spinel and nickel. The spinel material is typically a solid solution between magnesium aluminate and magnesium gallate.
摘要翻译：根据本发明，改进的光通信系统采用包含掺杂有光学活性原子的声子调谐晶体合金主体的发光装置。在一个实施方案中，晶体合金主体和光学活性原子分别包括尖晶石和镍。尖晶石材料通常是铝酸镁和没食子酸镁之间的固溶体。

3. 发明授权

US5978135A Article comprising a variable optical attenuator 有权
标题翻译：文章包括可变光衰减器
公开(公告)号：US5978135A
公开(公告)日：1999-11-02
申请号：US304287
申请日：1999-05-03
申请人： Robert Ralph Abbott , George Wayne Berkstresser , Charles David Brandle, Jr. , Vincent Jerome Fratello , Steven Joy Licht
发明人： Robert Ralph Abbott , George Wayne Berkstresser , Charles David Brandle, Jr. , Vincent Jerome Fratello , Steven Joy Licht
IPC分类号： G02F1/09 , G02B5/30
CPC分类号： G02F1/093 , G02F1/09
摘要： In an arrangement substantially like an optical isolator, appropriate choice of the composition of the magneto-optic element can result in a variable optical attenuator. The composition is selected to vary in the direction of light propagation, and also is selected such that the magneto-optic element comprises a compensation wall. The compensation wall is movable in response to a change in the temperature of the magneto-optic element, whereby the attenuation of the device is changed.
摘要翻译：在基本上像光隔离器的布置中，适当选择磁光元件的组成可导致可变光衰减器。组合物被选择为在光传播的方向上变化，并且还被选择为使得磁光元件包括补偿壁。补偿壁可响应于磁光元件的温度变化而移动，由此改变了装置的衰减。

4. 发明授权

US5801875A Article comprising a magneto-optic material having low magnetic moment 失效
标题翻译：本文包括具有低磁矩的磁光材料
公开(公告)号：US5801875A
公开(公告)日：1998-09-01
申请号：US653085
申请日：1996-06-12
申请人： Charles David Brandle, Jr. , Vincent Jerome Fratello , Steven Joy Licht
发明人： Charles David Brandle, Jr. , Vincent Jerome Fratello , Steven Joy Licht
IPC分类号： G02F1/09 , C30B29/28 , G02F1/00 , H01F10/24
CPC分类号： H01F10/245 , G02F1/0036
摘要： Garnet material according to a particular embodiment of the invention exhibits a substantially rectangular magnetization loop, with .vertline.H.sub.S .vertline.>.vertline.4.pi.M.sub.S .vertline.Oe and .vertline.4.pi.M.sub.s .vertline. 500 Oe) at least at room temperature. Garnet materials according to the invention can advantageously be used in magneto-optic isolators and other magneto-optic devices. For instance, the material enables manufacture of isolators that do not contain a bias magnet. Garnet materials according to the invention generally contain at most relatively small amounts of Gd, Tb and Dy (less than 1.0, 2.1 and 2.5 atoms per formula unit, respectively; with Gd+(Tb/2.1)+(Dy/2.5)
摘要翻译：根据本发明的特定实施例的石榴石材料在预定的工作范围内（例如，-40°至+ 50°）表现出基本上矩形的磁化回路，其具有| HS | | | | | | | | | | | | | | | | | 80℃），其中HS是环路的开关磁场，4πMS是饱和磁化强度。该材料具有改进的闭锁行为。在本发明的另一个实施方案中，选择石榴石材料的组成使得该材料至少在室温下表现出硬的锁定行为（| Hs> 500Oe）。根据本发明的石榴石材料可以有利地用于磁光隔离器和其它磁光器件中。例如，该材料能够制造不含偏置磁体的隔离器。根据本发明的石榴石材料通常含有至多相对少量的Gd，Tb和Dy（分别为每个式单元小于1.0,2.1和2.5个原子; Gd +（Tb / 2.1）+（Dy / 2.5）<1.0），通常含有Eu和/或Ho。根据现有实践，根据本发明的组合物可以在例如室温下在工作温度范围内具有补偿温度。根据本发明的示例性石榴石具有标称组成Bi0.75Eu1.5Ho0.75Fe4.1Ga0.9O12。

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