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1. 发明专利

JP2007121380A Optical waveguide circuit 有权
标题翻译：光波导电路
公开(公告)号：JP2007121380A
公开(公告)日：2007-05-17
申请号：JP2005309563
申请日：2005-10-25
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： MASUDA TAKAMITSU , TERUI HIROSHI , SHIMIZU KAZUMI , NAMEKAWA KAZUICHI , ABE ATSUSHI , YAMAZAKI YASUSHI , KANEKO AKEMASA , OGAWA IKUO
IPC分类号： G02B6/122 , G02B6/26
摘要： PROBLEM TO BE SOLVED: To provide an optical waveguide circuit, having high controllability of the reflection angle and satisfactory yield of production. SOLUTION: The optical waveguide circuit comprises a first side face substantially orthogonal to an optical axis; a second side face facing the first side face substantially parallel to the same; and a third side face, arranged so as to form an internal angle with the second side face of 90° to 180°. Since the second-side face and the third-side face form the internal angle of 90° to 180°, a curable resin made to flow into a mirror groove can be prevented from swelling due to its surface tension on the third-side face. Accordingly, a reflecting part having a flat surface can be formed. Furthermore, the mirror groove can be prevented from being embedded by the curable resin. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有高反射角度的可控性和令人满意的生产率的光波导电路。解决方案：光波导电路包括基本上与光轴正交的第一侧面; 与所述第一侧面大致平行的第二侧面; 以及第三侧面，其被布置成与第二侧面形成90°至180°的内角。由于第二面和第三面形成90°〜180°的内角，因此能够防止由于第三面的表面张力而流入反射镜槽的固化性树脂膨胀。因此，可以形成具有平坦表面的反射部。此外，可以防止镜面凹槽被可固化树脂嵌入。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007072133A Waveguide type band rejection filter 审中-公开
标题翻译：波导型带式防雷器
公开(公告)号：JP2007072133A
公开(公告)日：2007-03-22
申请号：JP2005258473
申请日：2005-09-06
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： TANAKA TAKUYA , ABE ATSUSHI , KOMINATO TOSHIMI , KAMITOKU MASAKI , YANAGISAWA MASAHIRO , NASU YUUKAI , IWATA TOSHIYUKI , INOUE YASUYUKI , MASUDA TAKAMITSU , KOMIYAMA TORU
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a waveguide type band rejection filter which has a large shielding efficiency, narrows a guard band by suppressing backscattering and backreflection, and suppresses reflection return light. SOLUTION: The waveguide type band rejection filter includes: a mode field diameter enlarging waveguide 102 that enlarges the mode field diameter of light made incident on an incident waveguide 101; a wide waveguide 103 in which the light with an enlarged mode field enters and in which a slant grating 107 is formed; a mode field diameter reducing waveguide 104 that reduces the mode field diameter of the light passed through the wide waveguide; a core that forms an emitting waveguide 105 for outputting the light with the reduced mode field diameter; and a clad in which the core is imbedded. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种屏蔽效率大的波导型带阻滤波器，通过抑制后向散射和背反射来减小保护频带，抑制反射返回光。解决方案：波导型带阻滤波器包括：放大入射在入射波导101上的光的模场直径的模场扩大波导102; 宽波导103，其中具有放大模场的光进入并且其中形成倾斜光栅107; 减小通过宽波导管的光的模场直径的模场直径减小波导104; 形成用于以减小模场直径输出光的发射波导105的芯; 和一个包裹核心嵌入。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006243495A Optical waveguide and its manufacturing method 审中-公开
标题翻译：光波及其制造方法
公开(公告)号：JP2006243495A
公开(公告)日：2006-09-14
申请号：JP2005060746
申请日：2005-03-04
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , Nttエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： HIROTA YOSHINOBU , TAMURA MUNEHISA , WATANABE HIROSHI , INOUE YASUYUKI , MASUDA TAKAMITSU , ITOU MIKITAKA , OTE YASUYOSHI , SATO TERUAKI
IPC分类号： G02B6/122 , G02B6/13
摘要： PROBLEM TO BE SOLVED: To provide an optical waveguide that has no gap in the upper clad layer, and also to provide a method for forming the waveguide. SOLUTION: A lower clad layer is formed on a substrate, a core film is formed on the lower clad layer. A resist is applied onto the core film and, by rotating a spin coater at high speed, the resist with a uniform thickness is formed. A resist pattern is formed by performing exposure and development using a mask for the resist. Etching is performed for the resist pattern and the core film, so that a core is formed from the core film. Then, a clad is embedded to form an upper clad layer. The mask is a gray mask or a shadow mask. The cross sectional shape of the resist pattern before the core forming step is thick in the resist center part and thin in the edge part. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供在上包层中没有间隙的光波导，并且还提供用于形成波导的方法。解决方案：在基板上形成下包层，在下包层上形成芯膜。将抗蚀剂施加到芯膜上，并且通过高速旋转旋涂机，形成均匀厚度的抗蚀剂。通过使用用于抗蚀剂的掩模进行曝光和显影来形成抗蚀剂图案。对抗蚀剂图案和芯膜进行蚀刻，从而由芯膜形成芯。然后，将包层嵌入以形成上包层。面具是一个灰色的面具或一个荫罩。芯形成步骤之前的抗蚀剂图案的横截面形状在抗蚀剂中心部分较厚并且在边缘部分中较薄。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005049634A Waveguide type optical wavelength multiplexer/demultiplexer 有权
标题翻译：波形类型光波长多路复用器/解复用器
公开(公告)号：JP2005049634A
公开(公告)日：2005-02-24
申请号：JP2003281868
申请日：2003-07-29
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , エヌティティエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： INOUE YASUYUKI , ITOU MIKITAKA , KASAHARA RYOICHI , OMORI YASUJI , SUGITA AKIO , SHIMIZU KAZUMI , MASUDA TAKAMITSU
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a polarization independent optical wavelength multiplexer/demultiplexer in which process load is small, which does not bring about degradation in optical characteristics, whose cost is low and which has high reliability. SOLUTION: Since the optical wavelength multiplexer/demultiplexer comprises optical branching parts, a plurality of optical waveguides whose length is different, optical coupling parts, etc., and core widths averaged in each longitudinal direction of the plurality of optical waveguides whose length is different are made different mutually and a lower clad being direct under of a core has ridge shape by the same width as that of the core, a polarization independent property is obtained. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种无偏光的光波长多路复用器/解复用器，其中工艺负载小，不会导致成本低且可靠性高的光学特性的劣化。解决方案：由于光学波长多路复用器/解复用器包括光分支部分，其长度不同的多个光波导，光耦合部分等以及在多个光波导的长度方向上平均的芯宽度，其长度不同的是相互不同的，并且芯的直下方的下包层具有与芯的宽度相同的脊形状，获得了极化独立性。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005331797A Method for manufacturing optical waveguide 有权
标题翻译：制造光波导的方法
公开(公告)号：JP2005331797A
公开(公告)日：2005-12-02
申请号：JP2004151360
申请日：2004-05-21
申请人： Nippon Telegr & Teleph Corp , Ntt Electornics Corp , エヌティティエレクトロニクス株式会社 , 日本電信電話株式会社
发明人： SUZUKI MASAYA , WATANABE HIROSHI , KOMINATO TOSHIMI , HIBINO YOSHINORI , SUGITA AKIO , MASUDA TAKAMITSU , SATO TERUAKI
IPC分类号： G02B6/13
摘要： PROBLEM TO BE SOLVED: To provide an optical waveguide manufacturing method capable of matching optical characteristics in TE and TM polarizations, by suppressing mismatch of the stresses in the horizontal and in the vertical directions caused by the difference of a thermal expansion coefficient in an upper and a lower clad layer. SOLUTION: The method includes a process in which a core 3b, having a softening temperature of Tci, is formed on the lower clad layer 2 having a softening temperature of Ti, and a part or all of the core 3b is embedded in the lower clad layer 2, by thermally processing the core 3b so that the temperature T satisfies Ti COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种能够通过抑制由于热膨胀系数的差异导致的水平和垂直方向上的应力的失配，从而能够在TE和TM偏振中匹配光学特性的光波导制造方法上包层和下包层。解决方案：该方法包括其中具有软化温度为Tci的芯3b形成在软化温度为Ti的下包层2上，并且将芯3b的一部分或全部嵌入通过热处理芯3b使得温度T满足Ti

6. 发明专利

JP2008070511A Optical chip of array waveguide diffraction grating type optical multiplexing/demultiplexing circuit, waveguide substrate, and method of manufacturing the optical chip of array waveguide diffraction grating type optical multiplexing/demultiplexing circuit 有权
$Optical chip of array waveguide diffraction grating type optical multiplexing/demultiplexing circuit, waveguide substrate, and method of manufacturing the optical chip of array waveguide diffraction grating type optical multiplexing/demultiplexing circuit$
标题翻译：阵列波导衍射光栅型光学复用/解复用电路，波导基板的光学芯片及其制造阵列波导衍射光栅多光复用电路的光学芯片的方法
公开(公告)号：JP2008070511A
公开(公告)日：2008-03-27
申请号：JP2006247695
申请日：2006-09-13
申请人： Ntt Electornics Corp , Nttエレクトロニクス株式会社
发明人： KUWANO SHUJI , MORIYA TOMOYUKI , MASUDA TAKAMITSU
IPC分类号： G02B6/122 , G02B6/13
CPC分类号： G02B6/13 , G02B6/12021
摘要： PROBLEM TO BE SOLVED: To provide an optical chip which increases the housing ratio of an optical chip and has a shape for stabilizing optical characteristics of an array waveguide diffraction grating type optical multiplexing/demultiplexing circuit, since the optical chip housing ratio per waveguide substrate is low when the chip shape is rectangular and optical characteristics are unstable when the chip shape is segmental in the conventional optical chip of the array waveguide diffraction grating type optical multiplexing/demultiplexing circui, and to provide a layout on the waveguide substrate of the optical chip, and a method of manufacturing the optical chip. SOLUTION: The optical chip is designed to have a projecting shape in which the center is bulged out to one side. Also, the waveguide substrate has the layout in which the array waveguide diffraction grating type optical multiplexing/demultiplexing circuits are arranged combinedly with the curved direction of the array waveguides alternately inverted. The optical chips are segmented from this waveguide substrate. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种光学芯片，其增加了光学芯片的壳体比并且具有用于稳定阵列波导衍射光栅型光学多路复用/解复用电路的光学特性的形状，因为光学芯片的壳体比率当阵列波导衍射光栅型光复用/解复用电路的传统光学芯片中的芯片形状是分段的时，当芯片形状为矩形且光学特性不稳定时，波导衬底较低，并且在波导衬底上提供布局光学芯片，以及制造光学芯片的方法。
解决方案：光学芯片设计成具有突出形状，其中中心凸出到一侧。此外，波导基板具有其中阵列波导衍射光栅类型的光复用/解复用电路与阵列波导的弯曲方向被组合地交替倒置的布置。光学芯片从该波导基片分割。版权所有（C）2008，JPO＆INPIT

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