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公开(公告)号：US06275336B1
公开(公告)日：2001-08-14
申请号：US08902882
申请日：1997-07-30
IPC分类号： G02B2728
CPC分类号： G02F1/093
摘要： Herein provided is an optical isolator which permits the reduction of the production cost and which is excellent in the thermal shock resistance. The optical isolator of the present invention is that the Farady rotator be adhered to the birefringent crystals or glass polarizers through adhesive layers and that the glass transition point of the adhesive be not more than −40° C.
摘要翻译： 本发明的光隔离器是通过粘合剂层将法拉第旋转体粘附到双折射晶体或玻璃偏振片上，而且，该隔离器能够降低生产成本，并且耐热冲击性优异。 粘合剂的玻璃化转变点不超过-40℃。
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公开(公告)号：US5917643A
公开(公告)日：1999-06-29
申请号：US947840
申请日：1997-10-09
申请人： Toshiaki Watanabe , Toshihiko Ryuo
发明人： Toshiaki Watanabe , Toshihiko Ryuo
CPC分类号： G02B6/4208 , H01S5/02284 , G02F1/093 , H01S5/0064 , H01S5/02296 , Y10S372/703
摘要： An optical isolator has a high ratio of the quantity of signals S to that of noises N (S/N ratio) and can be miniaturized such a size that it can easily be incorporated into a laser module. The optical isolator 1 according to the present invention is one to be connected to a semiconductor laser 11 having a linear polarization plane and comprises a Faraday's rotator 5 and a magnetic material 4 for establishing a magnetic field around the rotor on the light-incident side of the isolator and an optical material 6 for polarization on the light-outputting side thereof. In particular, the optical isolator 1 of the present invention is one to be connected to a semiconductor laser 11 having a linear polarization plane while aligning a polarization direction guide 3 of the isolator with the semiconductor laser 11, comprises a Faraday's rotator 5 whose light-incident and -outputting sides are desirably inclined with respect to the optical path and an annular magnetic material 4 surrounding the rotator 5, on the light-incident side of the isolator and an optical material 6 for polarization, on the light-outputting side thereof, whose light-incident and -outputting sides are desirably inclined with respect to the optical path, and the optical material for polarization is more desirably made of a metal-containing glass material.
摘要翻译： 光隔离器具有高的信号量S与噪声数量N（S / N比）的比率，并且可以被小型化，使得它可以容易地被结合到激光器模块中。 根据本发明的光隔离器1是连接到具有线性偏振面的半导体激光器11，并且包括法拉第转子5和用于在光入射侧的转子周围建立磁场的磁性材料4 隔离器和光输出侧的偏振光学材料6。 特别地，本发明的光隔离器1是与半导体激光器11连接的半导体激光器11，其具有线偏振面，同时将隔离器的偏振方向引导件3与半导体激光器11对准，包括法拉第转子5， 入射侧和输出侧期望相对于光路倾斜，并且在其光出射侧具有围绕旋转体5的环形磁性材料4，隔离器的光入射侧和用于偏振的光学材料6， 其光入射侧和输出侧期望相对于光路倾斜，并且用于偏振的光学材料更期望地由含金属的玻璃材料制成。
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公开(公告)号：US5341235A
公开(公告)日：1994-08-23
申请号：US152903
申请日：1993-11-15
申请人： Toshiaki Watanabe , Toshihiko Ryuo
发明人： Toshiaki Watanabe , Toshihiko Ryuo
CPC分类号： G02F1/093 , Y10S372/703
摘要： An optical isolator comprises a polarizer, a Faraday rotator, an analyzer and a magnet for applying a magnetic field to the Faraday rotator wherein the polarizer is incorporated into a first metal cylinder to form a polarizer unit, the Faraday rotator is incorporated into a cylindrical magnet to form a Faraday rotator unit and the analyzer is incorporated into a second metal cylinder to form an analyzer unit, the polarizer, Faraday rotator and analyzer units being arranged within an outer cylinder and the first metal cylinder and the second metal cylinder being joined to the outer cylinder through an adhesive component. The optical isolator can easily be produced, the adhered and supported portion thereof is not peeled off and it has high reliability.
摘要翻译： 光隔离器包括偏振器，法拉第旋转器，分析器和用于向法拉第旋转器施加磁场的磁体，其中将偏振器并入第一金属圆筒中以形成偏振器单元，法拉第旋转器结合到圆柱形磁体 为了形成法拉第转子单元，分析器结合到第二金属圆筒中以形成分析器单元，偏振器，法拉第旋转器和分析器单元布置在外圆筒内，第一金属圆筒和第二金属圆筒连接到 外筒通过粘合剂组分。 光隔离器可以容易地制造，其粘附和支撑部分不会剥离，并且其可靠性高。
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公开(公告)号：US5198923A
公开(公告)日：1993-03-30
申请号：US821698
申请日：1992-01-16
申请人： Toshiaki Watanabe , Toshihiko Ryuo
发明人： Toshiaki Watanabe , Toshihiko Ryuo
CPC分类号： G02F1/093 , G02F1/0036
摘要： The optical isolator of the present invention comprises a polarizer, a Farady rotator and an analyzer arranged in this order, wherein the Farady rotator has a garnet crystalline structure represented by the formula (Tb.sub.1-(a+b) Ln.sub.a Bi.sub.b).sub.3 (Fe.sub.1-c M.sub.c).sub.5 O.sub.12 wherein Ln represents at least one element selected from the group consisting of rare earth elements other than Tb; 0
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公开(公告)号：US5872652A
公开(公告)日：1999-02-16
申请号：US768292
申请日：1996-12-17
CPC分类号： G02B1/113 , G02B1/115 , G02F1/093 , Y10T403/479
摘要： An improvement is proposed relating to an optical isolator for bonding of the polarizer and analyzer of polarizing glass to the respective holder rings for position adjustment. The improvement comprises: (a) forming a metallized layer of a specific composition over at least two of the side surfaces of each of the polarizer and analyzer on the area of the surface excepting for the linear areas of 50 to 150 .mu.m width from the top and bottom surfaces of the polarizer or analyzer; and (b) bonding the polarizer and analyzer to the respective holder rings by soldering using a solder alloy with intervention of the metallized layer between the polarizer or analyzer and the holder ring. The invention further provides an optical part having, on at least one of the surfaces, a heat-resistant anti-reflection coating film which is a double-layered film consisting of a thin film of the titanium oxide TiO.sub.x (x=1.9 to 2.2) as the underlayer of high refractive index and a thin film of silicon dioxide as the overlayer of low refractive index.
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公开(公告)号：US5479290A
公开(公告)日：1995-12-26
申请号：US240915
申请日：1994-05-10
CPC分类号： G02F1/0036 , H01F10/245
摘要： A Faraday's rotator comprises a magnetic crystal which has a composition represented by the following compositional formula: (Tb.sub.1-(a+b+c+d) Ln.sup.1.sub.a Ln.sup.2.sub.b Bi.sub.c M.sup.1.sub.d).sub.3 (Fe.sub.1-e M.sup.2.sub.e).sub.5 O.sub.12, has a lattice constant of 12.383.+-.0.006 .ANG. and is grown through the liquid phase epitaxial growth technique. In the foregoing formula, Ln.sup.1 is at least one element selected from the group consisting of Yb, Lu and Tm; Ln.sup.2 is at least one member selected from the group consisting of rare earth elements except for Yb, Lu, Tm and Tb; M.sup.1 is at least one element selected from the group consisting of Ca, Mg and Sr; M.sup.2 is at least one element selected from the group consisting of Al, Ga, Ti, Si and Ge; 0.2.ltoreq.a.ltoreq.0.6, 0.ltoreq.b.ltoreq.0.3, 0
摘要翻译： 法拉第旋转器包括具有由以下组成式表示的组成的磁性晶体：（Tb1-（a + b + c + d）Ln1aLn2bBicM1d）3（Fe1-eM2e）5O12，晶格常数为12.383 +/- 0.006 ANGSTROM并通过液相外延生长技术生长。 在上述式中，Ln1是选自Yb，Lu和Tm中的至少一种元素; Ln2是选自除了Yb，Lu，Tm和Tb之外的稀土元素中的至少一种; M1是选自Ca，Mg和Sr中的至少一种元素; M2是选自Al，Ga，Ti，Si和Ge中的至少一种元素; 0.2
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7.发明授权Optical isolator and optical part having heat-resistant anti-reflection coating 失效光隔离器和具有耐热防反射涂层的光学部件
公开(公告)号：US6163404A
公开(公告)日：2000-12-19
申请号：US193128
申请日：1998-11-17
CPC分类号： G02B1/113 , G02B1/115 , G02F1/093 , Y10T403/479
摘要： An improvement is proposed relating to an optical isolator for bonding of the polarizer and analyzer of polarizing glass to the respective holder rings for position adjustment. The improvement comprises: (a) forming a metallized layer of a specific composition over at least two of the side surfaces of each of the polarizer and analyzer on the area of the surface excepting for the linear areas of 50 to 150 .mu.m width from the top and bottom surfaces of the polarizer or analyzer; and (b) bonding the polarizer and analyzer to the respective holder rings by soldering using a solder alloy with intervention of the metallized layer between the polarizer or analyzer and the holder ring. The invention further provides an optical part having, on at least one of the surfaces, a heat-resistant anti-reflection coating film which is a double-layered film consisting of a thin film of the titanium oxide TiO.sub.x (x=1.9 to 2.2) as the underlayer of high refractive index and a thin film of silicon dioxide as the overlayer of low refractive index.
摘要翻译： 提出了涉及用于将偏振器和偏振玻璃分析仪粘合到用于位置调节的相应保持环的光隔离器的改进。 该改进包括：（a）在表面区域上的每个偏振片和分析器的至少两个侧表面上形成特定组成的金属化层，除了距离该区域的50至150μm宽的线性区域 偏振器或分析仪的顶部和底部表面; 和（b）通过使用焊料合金进行焊接，将偏振器和分析仪粘合到相应的保持环上，该金属化层介于偏振器或分析器与保持环之间。 本发明还提供了一种光学部件，在至少一个表面上具有由氧化钛TiO x（x = 1.9〜2.2）的薄膜构成的双层膜的耐热性防反射涂膜， 作为高折射率的底层和二氧化硅的薄膜作为低折射率的覆盖层。
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公开(公告)号：US6049425A
公开(公告)日：2000-04-11
申请号：US884346
申请日：1997-06-27
申请人： Toshiaki Watanabe , Shin Sugiyama , Toshihiko Ryuo
发明人： Toshiaki Watanabe , Shin Sugiyama , Toshihiko Ryuo
CPC分类号： G02F1/093 , Y10S372/703
摘要： The present multiple-stage optical isolator has low polarization-dependency and low polarization-mode dispersion but does not require a long time for the assembly. It is constructed of a first unit having a first Faraday rotator placed within a magnetic field and at least one birefringent crystal sandwiching the Faraday rotator, these components being arranged in order from the light incident side; and a second unit having a second Faraday rotator placed within a magnetic field and at least one birefringent crystal sandwiching the Faraday rotator, these components being arranged in order from the light incident side, wherein the first and second units are arranged in order along the direction of the light transmission.
摘要翻译： 本发明的多级光隔离器具有低偏振相关性和低偏振模色散，但不需要较长的组装时间。 它由具有放置在磁场内的第一法拉第旋转器和夹着法拉第转子的至少一个双折射晶体的第一单元构成，这些部件从光入射侧依次布置; 以及第二单元，其具有放置在磁场内的第二法拉第旋转器和夹着所述法拉第旋转器的至少一个双折射晶体，这些部件从光入射侧依次布置，其中所述第一和第二单元沿着所述方向依次布置 的光传输。
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公开(公告)号：US5574809A
公开(公告)日：1996-11-12
申请号：US502627
申请日：1995-07-14
申请人： Toshiaki Watanabe , Toshihiko Ryuo
发明人： Toshiaki Watanabe , Toshihiko Ryuo
CPC分类号： G02B6/2746 , G02B6/32 , G02B6/4207 , G02B6/4208
摘要： An optical fiber type part for optical systems which comprises a smaller number of parts, whose production does not require a long time and which has stable optical characteristics is herein provided. The optical fiber type part for optical systems comprises an optical element 9, first and second lenses and each arranged on the light-incident or light-outgoing side of the optical part and first and second optical fibers and each arranged on the light-incident side of the first lens and the light-outgoing side of the second lens respectively and is characterized in that the end faces of the first and second optical fibers which are opposed to one another are inclined at an angle and subjected to abrasive finishing and that anti-reflection films are formed on these end faces.
摘要翻译： 本发明提供一种用于光学系统的光纤型部件，其包括较少数量的部件，其生产不需要较长时间并且具有稳定的光学特性。 用于光学系统的光纤型部件包括光学元件9，第一和第二透镜，并且每个配置在光学部件的光入射侧或光出射侧，第一和第二光纤，并且每个配置在光入射侧 的第一透镜和第二透镜的光出射侧，其特征在于，彼此相对的第一和第二光纤的端面以一定角度倾斜并经受磨料整理， 在这些端面上形成反射膜。
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公开(公告)号：US06462872B2
公开(公告)日：2002-10-08
申请号：US09812554
申请日：2001-03-21
申请人： Toshiaki Watanabe , Toshihiko Ryuo
发明人： Toshiaki Watanabe , Toshihiko Ryuo
IPC分类号： G02B2728
CPC分类号： G02B27/281 , G02F1/093 , Y10S372/703
摘要： There is disclosed an optical isolator, wherein one surface of an optical element comprising at least one polarizer and at least one Faraday rotator is bonded and fixed to a substrate in which a height of an optical element bonded portion surface has a level difference from a height of a peripheral portion surface, and the optical isolator, wherein a rectangular parallelepiped optical element comprising at least one polarizer and at least one Faraday rotator, which are bonded in the face of each light-transmitting surface, is bonded and fixed with a bonding agent to the substrate while the Faraday rotator in the optical element is not bonded to the substrate. There is provided a reliable and low cost optical isolator that can bond and integrate an optical isolator element and permanent magnets on a substrate, can realize positional adjustment in assembly with high precision and high bonding strength, and can avoid bonding distortion for an optical element.
摘要翻译： 公开了一种光隔离器，其中包括至少一个偏振器和至少一个法拉第转子的光学元件的一个表面被接合并固定到基板，其中光学元件接合部分表面的高度与高度 和光隔离器，其中包括至少一个偏振器和至少一个法拉第旋转器的长方体光学元件，其结合在每个透光表面的表面，用粘合剂粘合并固定 并且光学元件中的法拉第转子不与衬底结合。 提供了可靠且低成本的光隔离器，其可以将光隔离元件和永磁体结合并集成在基板上，可以以高精度和高粘合强度实现组装中的位置调整，并且可以避免光学元件的接合失真。
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