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1.发明授权Faraday rotator and optical device comprising the same, and antireflection film and optical device comprising the same 有权法拉第旋转器和包括该法拉第旋转器的光学装置，以及防反射膜和包括该反射膜的光学装置公开(公告)号：US06853473B2
公开(公告)日：2005-02-08
申请号：US10347264
申请日：2003-01-21
CPC分类号： G02F1/09 , G02F1/0036
摘要： The invention relates to an optical device for polarizing light by changing its Faraday rotation angle, such as optical attenuators, optical switches or polarization controllers; and its object is to provide such an optical device which can be driven even by small-sized and power-saving magnetic circuits and in which the insertion loss in the Faraday rotator may be reduced. The optical device comprises a Faraday rotator formed of a garnet single crystal, and a magnetic circuit applying an external magnetic field H that is smaller than the saturation magnetic field Hs of the Faraday rotator to the Faraday rotator.
摘要翻译： 本发明涉及通过改变其法拉第旋转角来偏振光的光学装置，例如光衰减器，光开关或偏振控制器; 其目的在于提供即使由小型省电磁路驱动的光学装置，也可以减小法拉第转子的插入损耗。 光学装置包括由石榴石单晶形成的法拉第旋转器，以及将小于法拉第旋转器的饱和磁场Hs的外部磁场H施加到法拉第旋转器的磁路。
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公开(公告)号：US07133189B2
公开(公告)日：2006-11-07
申请号：US10366341
申请日：2003-02-14
申请人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
发明人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
IPC分类号： G02F1/00
CPC分类号： C30B19/02 , C30B29/28 , G02F1/0036 , G02F1/09 , H01F10/24 , H01F10/265 , H01F41/28
摘要： Proposed is a technique of producing a magnetic garnet material of which the light absorption characteristics worsen little even though it is produced through LPE. The crucible for LPE is formed of a material containing Au. The amount of Au to be taken in single crystal formed in an Au crucible is smaller than that of Pt to be taken therein formed in a Pt crucible. As compared with Pt, the influence of Au on magnetic garnet film that increases the insertion loss in the film is small.
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3.发明授权Magnetic garnet material, faraday rotator, optical device, bismuth-substituted rare earth-iron-garnet single-crystal film and method for producing the same and crucible for producing the same 有权磁性石榴石材料，法拉第旋转器，光学元件，铋取代稀土 - 铁 - 石榴石单晶膜及其制造方法及其制造用坩埚公开(公告)号：US07517406B2
公开(公告)日：2009-04-14
申请号：US12003345
申请日：2007-12-21
申请人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
发明人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
IPC分类号： C30B11/04
CPC分类号： C30B19/02 , C30B29/28 , G02F1/0036 , G02F1/09 , H01F10/24 , H01F10/265 , H01F41/28
摘要： Proposed is a technique of producing a magnetic garnet material of which the light absorption characteristics worsen little even though it is produced through LPE. The crucible for LPE is formed of a material containing Au. The amount of Au to be taken in single crystal formed in an Au crucible is smaller than that of Pt to be taken therein formed in a Pt crucible. As compared with Pt, the influence of Au on magnetic garnet film that increases the insertion loss in the film is small.
摘要翻译： 提出了一种生产磁性石榴石材料的技术，即使通过LPE产生光吸收特性也很小。 用于LPE的坩埚由含Au的材料形成。 在Au坩埚中形成的单晶中的Au的量比在Pt坩埚中形成的Pt的Pt的量少。 与Pt相比，Au对增加膜中插入损耗的磁性石榴石膜的影响小。
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公开(公告)号：US20060187546A1
公开(公告)日：2006-08-24
申请号：US11399398
申请日：2006-04-07
申请人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
发明人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
CPC分类号： C30B19/02 , C30B29/28 , G02F1/0036 , G02F1/09 , H01F10/24 , H01F10/265 , H01F41/28
摘要： Proposed is a technique of producing a magnetic garnet material of which the light absorption characteristics worsen little even though it is produced through LPE. The crucible for LPE is formed of a material containing Au. The amount of Au to be taken in single crystal formed in an Au crucible is smaller than that of Pt to be taken therein formed in a Pt crucible. As compared with Pt, the influence of Au on magnetic garnet film that increases the insertion loss in the film is small.
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5.发明申请Magnetic garnet material, faraday rotator, optical device, bismuth-substituted rare earth-iron-garnet single-crystal film and method for producing the same and crucible for producing the same 有权磁性石榴石材料，法拉第旋转器，光学元件，铋取代稀土 - 铁 - 石榴石单晶膜及其制造方法及其制造用坩埚公开(公告)号：US20080112046A1
公开(公告)日：2008-05-15
申请号：US12003345
申请日：2007-12-21
申请人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
发明人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
IPC分类号： G02B5/30
CPC分类号： C30B19/02 , C30B29/28 , G02F1/0036 , G02F1/09 , H01F10/24 , H01F10/265 , H01F41/28
摘要： Proposed is a technique of producing a magnetic garnet material of which the light absorption characteristics worsen little even though it is produced through LPE. The crucible for LPE is formed of a material containing Au. The amount of Au to be taken in single crystal formed in an Au crucible is smaller than that of Pt to be taken therein formed in a Pt crucible. As compared with Pt, the influence of Au on magnetic garnet film that increases the insertion loss in the film is small.
摘要翻译： 提出了一种生产磁性石榴石材料的技术，即使通过LPE产生光吸收特性也很小。 用于LPE的坩埚由含Au的材料形成。 在Au坩埚中形成的单晶中的Au的量比在Pt坩埚中形成的Pt的Pt的量少。 与Pt相比，Au对增加膜中插入损耗的磁性石榴石膜的影响小。
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6.发明授权Magnetic garnet material, faraday rotator, optical device, bismuth-substituted rare earth-iron-garnet single-crystal film and method for producing the same crucible for producing the same 有权磁性石榴石材料，法拉第旋转器，光学元件，铋取代稀土 - 铁 - 石榴石单晶膜及其制造方法及其制造用坩埚公开(公告)号：US07333261B2
公开(公告)日：2008-02-19
申请号：US11399398
申请日：2006-04-07
申请人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
发明人： Atsushi Ohido , Tamotsu Sugawara , Kazuhito Yamasawa , Shinichiro Kakei , Kazuya Shimakawa , Katsunori Hosoya
IPC分类号： G02F1/00
CPC分类号： C30B19/02 , C30B29/28 , G02F1/0036 , G02F1/09 , H01F10/24 , H01F10/265 , H01F41/28
摘要： A of producing a magnetic garnet material of which the light absorption characteristics worsen little even though it is produced through LPE. The crucible for LPE is formed of a material containing Au. The amount of Au to be taken in single crystal formed in an Au crucible is smaller than that of Pt to be taken therein formed in a Pt crucible. As compared with Pt, the influence of Au on magnetic garnet film that increases the insertion loss in the film is small.
摘要翻译： 即使通过LPE产生光吸收特性恶化的磁性石榴石材料的制造A。 用于LPE的坩埚由含Au的材料形成。 在Au坩埚中形成的单晶中的Au的量比在Pt坩埚中形成的Pt的Pt的量少。 与Pt相比，Au对增加膜中插入损耗的磁性石榴石膜的影响小。
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7.发明授权HARD MAGNETIC GARNET MATERIAL, FARADAY ROTATOR, OPTICAL DEVICE, OPTICAL COMMUNICATION SYSTEM, METHOD OF MANUFACTURING FARADAY ROTATOR AND METHOD OF MANUFACTURING BISMUTH-SUBSTITUTED RARE EARTH IRON GARNET SINGLE CRYSTAL 有权硬磁性材料，FARADAY旋转器，光学装置，光通信系统，制造FARADAY ROTATOR的方法和制造双相取代稀土红土GARNET单晶的方法公开(公告)号：US06775052B2
公开(公告)日：2004-08-10
申请号：US10328966
申请日：2002-12-24
IPC分类号： G02F100
CPC分类号： G02F1/09 , G02F1/0036 , H01F1/10
摘要： A hard magnetic Bi-substituted rare earth iron garnet material with excellent Faraday rotary moment, temperature property, wavelength property and insertion loss is provided. A Bi-substituted rare earth iron garnet material having a chemical composition of (Bi3−a−b−cGdaTbbYbc) Fe(5−w)MwO12 (where, M is at least one element selected from the group consisting of Ga, Al, Ge, Sc, In, Si and Ti, 0.5≦a+b+c≦2.5, 0.2≦w≦2.5) can be provided with hard magnetism and have excellent Faraday rotary moment, temperature property, wavelength property and insertion loss.
摘要翻译： 提供了具有优良法拉第旋转力矩，温度特性，波长特性和插入损耗的硬磁性双取代稀土铁石榴石材料。 具有化学组成为（Bi 3-ab-cGdaTbbYbc）Fe（5-w）MwO 12的Bi取代稀土铁石榴石材料（其中，M为选自Ga，Al，Ge，Sc中的至少一种元素 ，In，Si和Ti，0.5 <= a + b + c <= 2.5,0.2 <= w <= 2.5）可以提供硬磁性，具有优良的法拉第旋转力矩，温度特性，波长特性和插入损耗。
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8.发明授权Hard magnetic garnet material, faraday rotator, optical device, optical communication system, method of manufacturing faraday rotator and method of manufacturing bismuth-substituted rare earth iron garnet single crystal 有权硬磁石榴石材料，法拉第旋转器，光学装置，光通信系统，法拉第旋转器的制造方法和制造铋取代稀土铁石榴石单晶的方法公开(公告)号：US07242516B2
公开(公告)日：2007-07-10
申请号：US10791598
申请日：2004-03-02
CPC分类号： G02F1/09 , G02F1/0036 , H01F1/10
摘要： A hard magnetic Bi-substituted rare earth iron garnet material with excellent Faraday rotary moment, temperature property, wavelength property and insertion loss is provided. A Bi-substituted rare earth iron garnet material having a chemical composition of (Bi3-a-b-cGdaTbbYbc) Fe(5-w)MwO12 (where, M is at least one element selected from the group consisting of Ga, Al, Ge, Sc, In, Si and Ti, 0.5≦a+b+c≦2.5, 0.2≦w≦2.5) can be provided with hard magnetism and have excellent Faraday rotary moment, temperature property, wavelength property and insertion loss.
摘要翻译： 提供了具有优良法拉第旋转力矩，温度特性，波长特性和插入损耗的硬磁性双取代稀土铁石榴石材料。 一种具有化学组成为（Bi 3-b c）的双取代稀土铁石榴石材料，其特征在于， （5-w）M 2 O 12（其中，M是至少一种选自由以下组成的组中的元素： Ga，Al，Ge，Sc，In，Si和Ti，0.5 <= a + b + c <= 2.5,0.2 <= w <= 2.5）可以提供硬磁性，具有优良的法拉第旋转力矩， 波长特性和插入损耗。
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9.发明授权Magnetic garnet single-crystal film and method of producing the same, and Faraday rotator comprising the same 有权磁性石榴石单晶膜及其制造方法以及包含该法的法拉第旋转器公开(公告)号：US06875270B2
公开(公告)日：2005-04-05
申请号：US09779467
申请日：2001-02-09
申请人： Atsushi Ohido , Kazuhito Yamasawa
发明人： Atsushi Ohido , Kazuhito Yamasawa
CPC分类号： H01F41/28 , C30B19/02 , C30B29/28 , G02F1/0036 , H01F10/245
摘要： The invention relates to a Bi-substituted rare earth-iron garnet single-crystal film and a method for producing it, and also to a Faraday rotator comprising it. Its object is to provide a magnetic garnet single-crystal film which hardly cracks while it grows or is cooled or polished and worked, and to provide a method for producing it. Its object is also to provide a Faraday rotator produced at high yield by working the magnetic garnet single-crystal film which hardly cracks while it grows or is cooled or polished and worked. In a method for producing a magnetic garnet single-crystal film by growing a Bi-substituted magnetic garnet single crystal in a mode of liquid-phase epitaxial growth, the lattice constant of the growing magnetic garnet single crystal is so controlled that it does not vary or gradually decreases with the growth of the single-crystal film, and then increases with it.
摘要翻译： 本发明涉及一种双取代稀土 - 铁石榴石单晶膜及其制造方法，还涉及包括该方法的法拉第旋转器。 其目的是提供一种在其生长或冷却或抛光和加工时几乎不会裂开的磁性石榴石单晶膜，并提供其制造方法。 其目的还在于提供一种通过加工石榴石单晶薄膜生产高产率的法拉第旋转器，其在生长或冷却或抛光和加工时几乎不会裂开。 在通过以液相外延生长的方式生长Bi取代的石榴石单晶来制造磁性石榴石单晶膜的方法中，生长的磁性石榴石单晶的晶格常数被控制为不变化 或随着单晶膜的生长而逐渐降低，然后随之增加。
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公开(公告)号：US06527973B2
公开(公告)日：2003-03-04
申请号：US09733039
申请日：2000-12-11
申请人： Atsushi Ohido , Kazuhito Yamasawa
发明人： Atsushi Ohido , Kazuhito Yamasawa
IPC分类号： G02F109
CPC分类号： H01F1/346 , H01F10/245
摘要： A magnetooptical device which defines a Faraday rotation angle &thgr; expressed by 44 deg.≦&thgr;≦46 deg. when light having a wavelength &lgr; (1570 nm≦&lgr;≦1620 nm) impinges thereupon. A magnetic garnet material expressed by a general formula: BiaM13−a Fe5−bM2bO12 is used. M1 is at least one kind of element that is selected from among Y, La, Eu, Gd, Ho, Yb, Lu and Pb; M2 is at least one kind of element that is selected from among Ga, Al, Ti, Ge, Si and Pt; and a and b satisfy 1.0≦a≦1.5 and 0≦b≦0.5, respectively.
摘要翻译： 一个磁光装置，其定义由44度<θ= 46度表示的法拉第旋转角θ。 当具有波长lambd（1570nm <= lambd <= 1620nm）的光照射时。 使用由通式BiaM13-a Fe5-bM2bO12表示的磁性石榴石材料。 M1是选自Y，La，Eu，Gd，Ho，Yb，Lu和Pb中的至少一种元素; M2是选自Ga，Al，Ti，Ge，Si和Pt中的至少一种元素; a和b分别满足1.0 <= a <= 1.5和0 <= b <= 0.5。
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