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31. 发明专利

JP2009265419A Optical wavelength multiplexing/demultiplexing circuit 审中-公开
标题翻译：光波长多路复用/解复用电路
公开(公告)号：JP2009265419A
公开(公告)日：2009-11-12
申请号：JP2008115954
申请日：2008-04-25
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KAMEI ARATA , INOUE YASUYUKI
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an optical wavelength multiplexing/demultiplexing circuit with an excellent reflection characteristic, which improves a reflection attenuation amount and a directivity characteristic, in an athermal array waveguide grid (AWG) of a structure in which a thermal compensation material is inserted in a slab waveguide path. SOLUTION: The groove disposed in a first slab waveguide path 102 is divided into six parts 106A to 106F, and they are arranged respectively to have the same width in a progressing direction of the light wave, arranged with a constant interval, that is 60 μm here, of the center line of each groove. In the athermal AWG of the embodiment, ϕ>0 for all net angles ϕ in which each of the grooves 106A to 106F makes to an axis line vertical to a progressing direction of the light wave transmitted from an array waveguide path 103. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有优异的反射特性的光波长多路复用/解复用电路，其提高反射衰减量和方向性特性，其中热结构的热无功阵列波导网格（AWG）补偿材料插入平板波导路径中。解决方案：设置在第一平板波导路径102中的槽被分成六个部分106A至106F，它们被分别布置成在光波的前进方向上具有相同的宽度，以一定的间隔布置，在这里为每个凹槽的中心线为60μm。在本实施例的无热AWG中，对于其中每个槽106A至106F对从阵列波导路径103发射的光波的行进方向垂直的轴线的所有净角度φ，φ> 0。版权所有（C）2010，JPO＆INPIT

32. 发明专利

JP2009265418A Optical wavelength multiplexing/demultiplexing circuit 有权
标题翻译：光波长多路复用/解复用电路
公开(公告)号：JP2009265418A
公开(公告)日：2009-11-12
申请号：JP2008115953
申请日：2008-04-25
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： KAMEI ARATA , INOUE YASUYUKI
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an optical wavelength multiplexing/demultiplexing circuit of an athermal AWG(Alley waveguide grating) that makes an ambient temperature region to be used comparatively wide in all wavelength channels by reducing wavelength channel dependency of a thermal characteristic of transmission center wavelength which remains in the athermal AWG. SOLUTION: A groove 606b is a groove formed in a second slab waveguide 604, and a thermal compensation material is filled in it. The groove 606b forms curved trapezoidal shape by adding a uniform width part to a curved triangle shape part, and a width to a progressing direction of light wave gradually changes. Here, when a mean value of a groove width, that is, a groove width on a line PQ, is L' c , a uniform width part of L'c is adjusted so that an equation (3) may be satisfied at T=20°C (corresponding to a predetermined environment temperature). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过降低热特性的波长信道依赖性使得在所有波长信道中使得环境温度区域相对较宽的无热AWG（Alley波导光栅）的光波分复用/解复用电路的传输中心波长保持在无热AWG。解决方案：凹槽606b是形成在第二平板波导604中的凹槽，并且热补偿材料被填充在其中。槽606b通过向弯曲的三角形部分添加均匀的宽度部分而形成弯曲的梯形，并且光波的前进方向的宽度逐渐变化。这里，当槽宽度的平均值即线PQ上的槽宽度为L'SB>时，调整L'c的均匀宽度部分，使得等式（3 ）可以在T = 20℃（对应于预定的环境温度）下得到满足。版权所有（C）2010，JPO＆INPIT

33. 发明专利

JP2008310017A Optical branching circuit and optical branching module 审中-公开
标题翻译：光分批电路和光分批模块
公开(公告)号：JP2008310017A
公开(公告)日：2008-12-25
申请号：JP2007157508
申请日：2007-06-14
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ISHII MOTOHAYA , INOUE YASUYUKI , HIDA YASUHIRO
IPC分类号： G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide a more compact optical branching circuit at a low cost. SOLUTION: The optical branching circuit 500 is equipped with: an inputting optical waveguide 501 on a substrate 515; an optical branching element 502 in the front stage for branching the inputting optical waveguide 501 into a first optical waveguide 501A, and a second optical waveguide 501B; a gradient index lens 503 and a reflection plate 504 for turning the first optical waveguide 501A on an end face 515A; a gradient index lens 505 and a reflection plate 506 for turning the second optical waveguide 501B on the end face 515A; and a plurality of optical branching elements 507, 508, 509, 510, 511, and 512 for branching the turned first optical waveguide into eight outputting optical waveguides 513. The inputting optical waveguide 501 and the eight outputting optical waveguides 513 are put together on the end face 515B facing the end face 515A and coupled to a plurality of optical fibers 520. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：以低成本提供更紧凑的光分路电路。解决方案：光分路电路500配备有：在基板515上的输入光波导501; 在前级的光分路元件502将输入光波导501分支成第一光波导501A，第二光波导501B; 梯度折射率透镜503和用于在端面515A上转动第一光波导501A的反射板504; 梯度折射率透镜505和用于在端面515A上转动第二光波导501B的反射板506; 以及用于将转换的第一光波导分支为八个输出光波导513的多个光分路元件507,508,509,510,511和512.输入光波导501和八个输出光波导513被放在一起端面515B面向端面515A并且耦合到多根光纤520.版权所有：（C）2009，JPO＆INPIT

34. 发明专利

JP2008299295A Optical component 有权
标题翻译：光学元件
公开(公告)号：JP2008299295A
公开(公告)日：2008-12-11
申请号：JP2007148649
申请日：2007-06-04
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： ARATAKE ATSUSHI , ISHII MOTOHAYA , INOUE YASUYUKI
IPC分类号： G02B6/30
摘要： PROBLEM TO BE SOLVED: To provide an optical component having a chip such as an optical element mounted and adhesively fixed onto an optical bench by passive alignment without impairing optical characteristics of the chip or optical coupling property between chips. SOLUTION: The optical component includes the optical bench 10 and the chip 20 mounted in a predetermined position of a chip mounting surface of the optical bench with a space from the chip mounting surface and fixed by applying load, wherein a fitting part is formed of a positioning recess 11 formed in the optical bench, and a positioning protrusion part 21 formed at the chip, and one or more deformation preventing means 23 contacting the optical bench or the chip only when the chip is deformed by applying load are formed at the optical bend or the chip separately from the fitting part. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学部件，其具有安装光学元件的芯片，并且通过被动对准将其粘合地固定在光学平台上，而不损害芯片的光学特性或芯片之间的光学耦合特性。解决方案：光学部件包括安装在光学工作台的芯片安装表面的预定位置的光学工作台10和芯片20，其具有来自芯片安装表面的空间并通过施加负载来固定，其中装配部分是由形成在光学工作台上的定位凹部11和形成在芯片上的定位突起部21形成，并且只有当芯片通过施加负载而变形时，接触光学台或芯片的一个或多个防变形装置23形成在光学弯曲或芯片与配件部分分开。版权所有（C）2009，JPO＆INPIT

35. 发明专利

JP2008209955A Optical multiplexing/demultiplexing circuit equipped with phase generating function 有权
标题翻译：配有相位发生功能的光学多路复用/解复用电路
公开(公告)号：JP2008209955A
公开(公告)日：2008-09-11
申请号：JP2008146281
申请日：2008-06-03
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： MIZUNO TAKAYUKI , KITO TSUTOMU , OGUMA MANABU , INOUE YASUYUKI
IPC分类号： G02B6/12 , G02B6/122 , G02B6/34
CPC分类号： G02B6/12019 , G02B6/12007 , G02B6/12016 , G02B6/12021 , G02B6/12023 , G02B6/29353 , G02B6/29355 , G02B6/2938
摘要： PROBLEM TO BE SOLVED: To provide an optical multiplexing/demultiplexing circuit having equal wavelength spaces with a passband placed on a grid of a wavelength axis, and an optical multiplexing/demultiplexing circuit allowing setting of either of the optical frequency intervals and central optical frequency at an optional value. SOLUTION: The optical multiplexing/demultiplexing circuit includes two phase developing optical connectors 111, 112 of two-input, two-output, an optical delay line part 107 consisting of two optical waveguides held by the two optical connectors 111, 112, and two input/output optical waveguides 101, 102 and 103, 104 connecting to the optical connectors 111, 112. The circuit is provided with a function (phase generating function) correcting displacement of the wave intervals so that a transmittance characteristic becomes roughly equal periods on the wavelength axis. This function, for example, can be achieved by composing one of or both of the connectors 111, 112 so that the output phase difference have dependency on the wavelength in the passband of the optical multiplexing/demultiplexing circuit. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有放置在波长轴网格上的通带的具有相等波长空间的光复用/解复用电路，以及允许设置光频间隔和中心的光频多路复用/解复用电路光频在一个可选的值。光复用/解复用电路包括双输入双输出的两个相位显影光连接器111,112，由两个光连接器111,112保持的两个光波导构成的光延迟线部分107，以及连接到光连接器111,112的两个输入/输出光波导101,102和103,104。该电路具有校正波间隔的位移的功能（相位产生功能），使得透射率特性变成大致相等的周期在波长轴上。例如，该功能可以通过组合连接器111,112中的一个或两者来实现，使得输出相位差依赖于光复用/解复用电路的通带中的波长。版权所有（C）2008，JPO＆INPIT

36. 发明专利

JP2007025583A Thermooptic phase modulator and its manufacturing method 有权
标题翻译：热电相调制器及其制造方法
公开(公告)号：JP2007025583A
公开(公告)日：2007-02-01
申请号：JP2005211621
申请日：2005-07-21
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： WATANABE HIROSHI , HASHIZUME YASUAKI , INOUE YASUYUKI , ITO MASAYUKI , TAMURA MUNEHISA
IPC分类号： G02F1/01 , G02B6/12 , G02B6/13 , G02F1/313
摘要： PROBLEM TO BE SOLVED: To provide a thermooptic phase modulator with which power consumption is reduced and loss is reduced, and its manufacturing method. SOLUTION: The thermooptic phase modulator is equipped with a cladding 62 containing a core 63 formed on a substrate 61, and heat insulating grooves 65 formed by removing the cladding 62 so as to make their longitudinal directions nearly parallel to a longitudinal direction of the core 63. A direction of a first edge of the heat insulating groove 65 in a region including respective ends on the core 63 side forms a first angle with the longitudinal direction of the core 63 toward the end of the first edge on the side opposite to the core 63. A ridge structure 64 is formed by forming two heat insulating grooves 65 so as to interpose the core 63. A width of the straight line shaped ridge structure 64A is less than a waveguide mode basic mode width of the core in the case of having no heat insulating groove formed, and a width of a region formed with the first edge of the ridge structure 64B with a tapered shape gradually increases as going closer to the end of the first edge. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供降低功耗并降低损耗的光波相位调制器及其制造方法。光波相位调制器配备有包含形成在基板61上的芯63的包层62和通过去除包层62而形成的绝热槽65，以使其纵向几乎平行于纵向方向核心63.在包括芯部63侧的各个端部的区域中，绝热槽65的第一边缘的方向形成与芯部63的纵向方向相反的第一边缘的端部的第一角度通过形成两个绝热槽65以形成芯部63形成脊状结构64。直线状脊部结构64A的宽度小于芯线的波导模式基本模式宽度形成有绝热槽的情况，并且形成有具有锥形形状的脊状结构64B的第一边缘的区域的宽度随着越靠近第一边缘的端部逐渐增加。版权所有（C）2007，JPO＆INPIT

37. 发明专利

JP2006235379A Thermo-optical phase modulator and its manufacturing method 有权
标题翻译：光电相位调制器及其制造方法
公开(公告)号：JP2006235379A
公开(公告)日：2006-09-07
申请号：JP2005051735
申请日：2005-02-25
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： WATANABE HIROSHI , KAMITOKU MASAKI , INOUE YASUYUKI
IPC分类号： G02F1/01
摘要： PROBLEM TO BE SOLVED: To provide a thermo-optical phase modulator of low power consumption whose clad thickness is not so thick and which can realize a desired response speed without the need for machining with a high aspect ratio, and its manufacturing method. SOLUTION: The thermo-optical phase modulator which has a core in a clad layer deposited on a substrate and also has a thin-film heater arranged on an over-clad right above the core is characterized in that a portion of the clad layer which includes the heater and core is enclosed with a heat insulating groove to prevent heat from the heater from being dissipated and a portion of the clad layer enclosed with the heat insulating groove is formed in hollow structure apart from the substrate to reduce the area of contact between the portion including the heater and core and the substrate. In addition, the connection portion where the clad and substrate come into contact with each other to support the hollow structure is provided on one side apart from the heater and placed in an overhang state, and the the cross section of the connection portion is made smaller than the cross section of the other clad. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种低功耗的热光相位调制器，其包层厚度不太厚，并且可以实现期望的响应速度，而不需要以高纵横比进行加工，并且其制造方法。解决方案：在光电相位调制器中，在包覆层上沉积有芯的芯片，并且还具有布置在芯上方的覆盖层右侧的薄膜加热器，其特征在于，一部分包层包括加热器和芯的层被绝热槽包围，以防止来自加热器的热量消散，并且与绝热槽包围的包层的一部分形成在离开基板的中空结构中，以减小包括加热器和芯部的部分与基板之间的接触。另外，包覆层和基板相互接触以支撑中空结构的连接部分设置在与加热器分开的一侧并且处于伸出状态，并且使连接部分的横截面变小比另一个包层的横截面。版权所有（C）2006，JPO＆NCIPI

38. 发明专利

JP2006146127A Manufacturing method of optical waveguide 有权
标题翻译：光波导的制造方法
公开(公告)号：JP2006146127A
公开(公告)日：2006-06-08
申请号：JP2005059488
申请日：2005-03-03
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： WATANABE HIROSHI , NASU YUUKAI , INOUE YASUYUKI
IPC分类号： G02B6/13
摘要： PROBLEM TO BE SOLVED: To avoid generation of a large waveguide loss at a portion of a spot size converter by producing a much smoother inclined surface of a waveguide than that of the waveguide manufactured by a conventional technique. SOLUTION: The manufacturing method of an optical waveguide includes three steps. In the first step, a sacrifice layer is produced on the surface of a lower clad layer and a large groove is formed on the sacrifice layer which has a V shape with a small taper angle seen from the flat surface, has side walls that are vertical with respect to the surface and has a large aspect ratio. In a second step, a directional deposition method is used, i.e., a core layer is deposited in the groove by a deposition method (an ECR-CVD method) to easily obtain isotropic deposition and a core layer is formed on the bottom surface of the groove in a self-forming manner and the core layer in which thickness along the vertical direction is increased in the surface as the width is widened from the V-shaped tip and a three dimensional taper shape is provided. In a third step, the core layer is formed into the core of the spot size converter by removing the sacrifice layer. Thus, a connection loss to an optical fiber is greatly reduced by producing the three dimensional taper surface which has an acute angle and is very smooth. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了避免在光斑尺寸转换器的一部分产生比通过常规技术制造的波导更平滑的波导倾斜表面产生大的波导损耗。解决方案：光波导的制造方法包括三个步骤。在第一步骤中，在下包层的表面上产生牺牲层，并且在平坦表面上看到具有小锥角的V形的牺牲层上形成大的凹槽，具有垂直的侧壁相对于表面并具有大的纵横比。在第二步骤中，使用定向沉积方法，即，通过沉积方法（ECR-CVD法）将芯层沉积在凹槽中以容易地获得各向同性沉积，并且在层的底表面上形成芯层沟槽，并且沿着垂直方向的厚度随着宽度从V形尖端变宽而在表面上增加并且提供三维锥形形状的芯层。在第三步骤中，通过去除牺牲层将芯层形成为光斑尺寸转换器的芯。因此，通过产生具有锐角并且非常光滑的三维锥形表面，大大降低了对光纤的连接损耗。版权所有（C）2006，JPO＆NCIPI

39. 发明专利

JP2006065089A Optical directional coupler and wavelength-independent coupler 审中-公开
标题翻译：光学方向耦合器和波长独立耦合器
公开(公告)号：JP2006065089A
公开(公告)日：2006-03-09
申请号：JP2004248810
申请日：2004-08-27
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： SUZUKI MASAYA , KOMINATO TOSHIMI , INOUE YASUYUKI , SUGITA AKIO , HIBINO YOSHINORI
IPC分类号： G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide an optical directional coupler and a wavelength-independent coupler having a large allowable range for manufacture errors including changes in the optical waveguide width as a main cause of decrease in yield and changes in the relative refractive index in the optical waveguide. SOLUTION: The wavelength-independent coupler is composed of a Mach-Zehnder interferometer comprising two optical directional couplers each having two optical waveguides and two optical waveguides of different lengths connecting the above two optical directional couplers. Each of the two optical directional couplers has zero length of a straight portion in the optical coupling region to induce optical coupling, and the width of the optical waveguide and the gap between the optical waveguides in the optical coupling region are determined so as to obtain the intensity of exiting light independent from the wavelength of incident light. The two optical waveguides are formed as tapered to be thinner from the input end to the optical coupling region where optical coupling is induced, and tapered to be wider from the optical coupling region to the output end. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种光学定向耦合器和波长非依赖耦合器，其具有允许范围大的制造误差，包括光波导宽度的变化，作为产量下降和相对折射率变化的主要原因在光波导中。解决方案：波长无关耦合器由马赫 - 策德尔干涉仪组成，包括两个光学定向耦合器，每个光学定向耦合器具有两个光波导和两个不同长度的光波导，连接上述两个光学定向耦合器。两个光学定向耦合器中的每一个具有在光耦合区域中的直线部分的零长度以引起光耦合，并且确定光波导的宽度和光耦合区域中的光波导之间的间隙，以便获得出射光的强度独立于入射光的波长。两个光波导形成为从输入端到耦合光耦合的光耦合区域变细，并且从光耦合区域到输出端的锥形变宽。版权所有（C）2006，JPO＆NCIPI

40. 发明专利

JP2005309008A Optical receiver 审中-公开
标题翻译：光接收机
公开(公告)号：JP2005309008A
公开(公告)日：2005-11-04
申请号：JP2004124700
申请日：2004-04-20
申请人： Nippon Telegr & Teleph Corp , 日本電信電話株式会社
发明人： DOI YOSHIYUKI , OGAWA IKUO , SUZUKI SENTA , INOUE YASUYUKI
IPC分类号： G02B6/42
摘要： PROBLEM TO BE SOLVED: To provide an optical receiver which suppresses the occurrence of PDL (polarization dependence loss) and hardly causes a leakage current in a photodetector as for the optical receiver mounting the photodetector on an optical waveguide substrate having an optical waveguide.
SOLUTION: The optical receiver comprises the optical waveguide 12 on the optical waveguide substrate 10, a filter 14 inserted into a groove 13, a reflection surface 16 on a stand 15, the photodetector 17 and a sealing material 18. The sealing material 18 is applied on the upper surface of optical waveguide substrate, the reflection surface 16 and the photodetector 17 and has a refractive index close to the refractive index of a clad 12-2 of the optical waveguide 12. A part or all of light propagating from left to right on the figure in the optical waveguide 12 is reflected by a filter 14, is transmitted from the interface of the optical waveguide substrate 10 to the sealing material 18, is totally reflected by the reflection surface 16 and, thereafter, is made incident to the photodetector 17. There is almost no difference of refractive index on the interface between the surface part 12-2 of optical waveguide substrate and the sealing material 18, therefore, there is no polarization dependence of the reflectance and, as a result, the PDL of light can be avoided.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供抑制PDL（偏振相关损耗）的发生并且几乎不引起光电检测器中的漏电流的光接收器，就像将光电检测器安装在具有光波导的光波导基板上的光接收器。光接收机包括光波导基板10上的光波导12，插入槽13中的滤光片14，支架15上的反射面16，光电检测器17和密封材料18.密封材料 18被施加在光波导基板的上表面，反射表面16和光电检测器17上，并且具有接近光波导12的包层12-2的折射率的折射率。部分或全部从在光波导12中从图中左到右被滤波器14反射，从光波导基板10的界面传递到密封材料18，被反射面16全反射，然后入射在光波导基板的表面部分12-2与密封材料18之间的界面上几乎没有折射率的差异，因此没有偏振可以避免反射率的依赖性，结果可以避免光的PDL。版权所有（C）2006，JPO＆NCIPI

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