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1. 发明专利

JP2004341506A Lattice modification type photonic crystal wavelength filter, array type wavelength multiplexer/demultiplexer using the same, and method of manufacturing them 有权
公开(公告)号：JP2004341506A
公开(公告)日：2004-12-02
申请号：JP2004120378
申请日：2004-04-15
申请人： Hitachi Cable Ltd , Photonic Lattice Inc , 日立電線株式会社 , 株式会社フォトニックラティス
发明人： KAWAKAMI SHOJIRO , ODERA YASUO , OKUBO HIROYUKI
IPC分类号： G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide a lattice modulation type photonic crystal wavelength filter having a simple structure, in which the variation in the central transmission wavelength is large, and an array type wavelength multiplexer/demultiplexer using the filter, and to provide a method of manufacturing them. SOLUTION: The dispersion curve of the central transmission wavelength is located at the dispersion curve decided by the film thickness of a cavity layer 112 among a group of dispersion curves by varying the lattice constant of a photonic crystal 113. Since the band gap between the dispersion curve of the longest wavelength side and the dispersion curve of the shortest wavelength side is narrowed to approach the central dispersion curve as the lattice constant increases, the variation in the central transmission wavelength becomes large by controlling the film thickness of the layer 112 being the cavity of the photonic crystal 113 so that the dispersion curve is shifted to be located at a place other than the dispersion curve composed of the middle points of the frequency conversion in the band gap. COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2004325902A Grid modulation type photonic crystal wavelength selection filter, array type wavelength multiplexer/demultiplexer using the filter, and their manufacturing method 审中-公开
公开(公告)号：JP2004325902A
公开(公告)日：2004-11-18
申请号：JP2003121975
申请日：2003-04-25
申请人： Hitachi Cable Ltd , Photonic Lattice Inc , 日立電線株式会社 , 株式会社フォトニックラティス
发明人： KAWAKAMI SHOJIRO , ODERA YASUO , OKUBO HIROYUKI
IPC分类号： G02B6/12 , G02B5/28
摘要： PROBLEM TO BE SOLVED: To provide a grid modulation type photonic crystal wavelength selection filter in which constitution is made simple and the amount of variation in a transmission center wavelength is made large, and an array type wavelength multiplexer/demultiplexer using the filter, and to provide a manufacturing method of the filter and the mutiplexer/demultiplexer. SOLUTION: By providing a simple constitution in which a cavity section 43 is made by a high refractive index medium layer 44a, the amount of variation in the transmission center wavelength is made equal to or greater than 20 nm from a conventional 10 nm and a small size grid modulation type photonic crystal wavelength selection filter 40 and an array type wavelength multiplexer/demultiplexer 80 using the filter 40 are obtained. COPYRIGHT: (C)2005,JPO&NCIPI

3. 发明专利

JP2005348146A Dispersion control element, and dispersion control method and dispersion compensator using the same 有权
标题翻译：分散控制元件，分散控制方法和分散补偿器
公开(公告)号：JP2005348146A
公开(公告)日：2005-12-15
申请号：JP2004166023
申请日：2004-06-03
申请人： Hitachi Cable Ltd , Photonic Lattice Inc , 日立電線株式会社 , 株式会社フォトニックラティス
发明人： OKUBO HIROYUKI , KAWAKAMI SHOJIRO , ODERA YASUO
IPC分类号： G02B6/26 , G02B6/12 , G02B26/06 , G02F1/01 , H04B10/2507 , H04B10/2519 , H04B10/02 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To provide the dispersion control element of a filter type whose controlled dispersion on the occasion of variable control is large. SOLUTION: This dispersion control element 10 is an element which is for compensating the wavelength dispersion of a signal light occurring when optical communication is performed, and uses a photonic crystal of multilayer structure. The element 10 has at least one optical element of multilayer structure designed so as to totally reflect signal light in a certain wavelength band on a substrate 11, and makes the signal light enter on the optical element at an angle crossing the substrate 11 surface. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供在可变控制时受控色散大的过滤器类型的色散控制元件。解决方案：该色散控制元件10是用于补偿在执行光通信时发生的信号光的波长色散的元件，并且使用多层结构的光子晶体。元件10具有至少一个多层结构的光学元件，被设计为完全反射衬底11上的特定波段中的信号光，并且使信号光以与衬底11表面相交的角度进入光学元件。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2004325903A Wavelength multiplexer/demultiplexer, and its manufacturing method 审中-公开
公开(公告)号：JP2004325903A
公开(公告)日：2004-11-18
申请号：JP2003121977
申请日：2003-04-25
申请人： Hitachi Cable Ltd , Photonic Lattice Inc , 日立電線株式会社 , 株式会社フォトニックラティス
发明人： KAWAKAMI SHOJIRO , ODERA YASUO , OKUBO HIROYUKI , OKANO HIROAKI
IPC分类号： G02B5/18 , G02B6/293 , G02B27/10
摘要： PROBLEM TO BE SOLVED: To provide a small wavelength multiplexer/demultiplexer and its manufacturing method. SOLUTION: In a conventional method to manufacture a plurality of filters having different transmission center wavelengths, a plurality of substrates is required. However, a plurality of photonic crystals 12a to 12d having different transmission center wavelengths is manfactured on a single substrate 11 in a one batch using a spattering device and a small wavelength multiplexer/demultiplexer 10 is obtained. The size of the multiplexer/demultiplexer 10 is further reduced by arranging lens sections 15-2 to 15-5 and optical fibers 14-2 to 14-5 on only one of the surface side 11a of the substrate 11 to receive signal light beams passed the crystals 12a to 12d. Since wavelength multiplexed signal light beams are made incident on the photonic crystal 12a from another surface 11b of the substrate 11 through the substrate 11, wavelength multiplexing/demultiplexing is conducted by photonic crystal filter 12 and a reflection film 13. COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004325901A Wavelength multiplexer/demultiplexer, and its manufacturing method 审中-公开
公开(公告)号：JP2004325901A
公开(公告)日：2004-11-18
申请号：JP2003121974
申请日：2003-04-25
申请人： Hitachi Cable Ltd , Photonic Lattice Inc , 日立電線株式会社 , 株式会社フォトニックラティス
发明人： KAWAKAMI SHOJIRO , ODERA YASUO , OKUBO HIROYUKI , CHIBA TAKASHI , MARU KOICHI
IPC分类号： G02B6/12 , G02B5/28 , G02B6/13
摘要： PROBLEM TO BE SOLVED: To provide a wavelength multiplexer/demultiplexer having low loss and its manufacturing method. SOLUTION: When a photonic crystal filter 30 is to be optically connected to a demultiplexing side waveguide 3a of a wavelength multiplexer/demultiplexer main body 41, either of the transmission wavelength band of the waveguide 3a or the transmission wavelength band of the photonic crystals of the filter 30 is made wider than the other, no precision alignment for optical axes is required and positioning operations are easily conducted. Since the wavelength band of a channel as each transmission wavelength is determined by a narrower band, connection loss is suppressed. COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2004325899A Array type wavelength multiplexer/demultiplexer, and its manufacturing method 审中-公开
标题翻译：阵列型波长多路复用器/解复用器及其制造方法
公开(公告)号：JP2004325899A
公开(公告)日：2004-11-18
申请号：JP2003121972
申请日：2003-04-25
申请人： Hitachi Cable Ltd , Photonic Lattice Inc , 日立電線株式会社 , 株式会社フォトニックラティス
发明人： KAWAKAMI SHOJIRO , ODERA YASUO , OKUBO HIROYUKI , CHIBA TAKASHI , UETSUKA NAOTO
IPC分类号： G02B6/30 , G02B5/28 , G02B6/12
摘要： PROBLEM TO BE SOLVED: To provide an array type wavelength multiplexer/demultiplexer, in which cross talk is made large and production is made easy, and to provide its manufacturing method. SOLUTION: A photonic crystal filter 21 is provided at the end face of a channel type optical waveguide group 22 side of an array type wavelength multiplexer/demultiplexer main body substrate 26 so that a filter substrate 30 and an array type wavelength multiplexer/demultiplexer main body substrate 26 make a right angle. Thereby, diffraction loss is reduced and a process to form dividing grooves on the array type wavelength multiplexer/demultiplexer is eliminated and an array type wavelength multiplixer/demultiplexer which has low loss and is easily produced is obtained. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种阵列型波长多路复用器/解复用器，其中串扰大并且容易制造，并提供其制造方法。解决方案：在阵列型波长多路复用器/解复用器主体基板26的通道型光波导组22侧的端面处设置有光子晶体滤波器21，使得滤波器基板30和阵列型波长多路复用器/ 解复用器主体基板26成直角。从而，减少了衍射损耗，并且消除了在阵列型波长多路复用器/解复用器上形成分割槽的处理，并且获得了具有低损耗并容易产生的阵列型波长倍增器/解复用器。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004325900A Optical circuit using photonic crystal and its manufacturing method 审中-公开
公开(公告)号：JP2004325900A
公开(公告)日：2004-11-18
申请号：JP2003121973
申请日：2003-04-25
申请人： Hitachi Cable Ltd , Photonic Lattice Inc , 日立電線株式会社 , 株式会社フォトニックラティス
发明人： KAWAKAMI SHOJIRO , ODERA YASUO , OKUBO HIROYUKI
IPC分类号： G02B6/12 , G02B6/13
摘要： PROBLEM TO BE SOLVED: To provide an optical circuit in which cores are optically connected without making gaps at the connection sections and changing sections in cross sectional shapes and connection loss is reduced, and to provide a manufacturing method of the optical circuit. SOLUTION: Cores 102-1 and 102-2 are formed on a substrate 101. Another core 103 having a closed curve pattern with which at least a part consist of photonic crystals, is formed close to the cores 102-1 and 102-2 in a locally parallel manner by a self cloning method that optimizes the ratio of spatter deposition and spatter etching. Then, the core 103 is covered by a clad 104 to form the optical circuit. Thus, an optical resonator is manufactured without generating gaps at the connection sections and changing sections in cross sectional shapes. COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2004045779A Optical element 审中-公开
公开(公告)号：JP2004045779A
公开(公告)日：2004-02-12
申请号：JP2002203382
申请日：2002-07-12
申请人： Nec Corp , Photonic Lattice Inc , 日本電気株式会社 , 株式会社フォトニックラティス
发明人： YAMADA HIROHITO , KAWAKAMI SHOJIRO , ODERA YASUO
IPC分类号： G02B6/12 , G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide an optical element utilizing photonic crystal. SOLUTION: For the optical element, the dielectric of a low refractive index and the dielectric of a high refractive index are alternately laminated by using a self cloning technique on a line-and-space pattern formed on a substrate and the multilayer film of a wavy pattern 5 is attained. Then, on the multilayer film, a light beam 6 is made incident from a direction oblique to the repeating direction of the wavy pattern. Thus, only the light of a specified wavelength determined by the cycle of the wavy pattern 5 and the incidence angle θ of the light beam 6 is diffracted (reflected) and the photonic crystal is used as a demultiplexer, an add / drop MUX circuit and an optical power monitoring circuit. Also, by gently changing the cycle of the wavy pattern along the propagation route of the light beam or providing two sets of the wavy pattern whose cycle and direction are changed depending on places and changing a propagation distance for every wavelength, it is used as a dispersion compensator as well. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2005141003A Short pulsed light dispersion characteristic variable element 审中-公开
标题翻译：短脉冲分散特征变量元素
公开(公告)号：JP2005141003A
公开(公告)日：2005-06-02
申请号：JP2003377555
申请日：2003-10-01
申请人： Photonic Lattice Inc , 株式会社フォトニックラティス
发明人： KAWAKAMI SHOJIRO , ODERA YASUO
IPC分类号： G02B6/12 , G02B5/18 , H01S3/05
摘要： PROBLEM TO BE SOLVED: To provide an optical element which does not have a driven part and singly compensates for the primary, secondary, or higher order group delayed dispersion at various kinds of center wavelengths. SOLUTION: A different photonic crystal array of which each area in a screen has a different optical axis and a different grating interval is used. A position to which the light is made incident in the array is suitably selected corresponding to center wavelengths of the light and group delayed dispersion amount to be compensated. The primary, secondary, or higher order group delay dispersion can be compensated for in a wide range of optical wavelengths by preparing lots of areas of which the grating intervals and optical axis directions of the photonic array are made different. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种不具有被驱动部分的光学元件，并且可以单独补偿在各种中心波长处的初级，次级或更高阶组延迟色散。解决方案：使用屏幕中每个区域具有不同光轴和不同光栅间隔的不同光子晶体阵列。对应于要补偿的光的中心波长和组延迟色散量适当地选择入射到阵列中的光的位置。可以通过制备光子阵列的光栅间隔和光轴方向不同的许多区域来在宽范围的光波长中补偿初级，次级或更高阶组延迟色散。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004045709A Coupled optical waveguide 有权
标题翻译：耦合光波导
公开(公告)号：JP2004045709A
公开(公告)日：2004-02-12
申请号：JP2002202526
申请日：2002-07-11
申请人： Nec Corp , Photonic Lattice Inc , 日本電気株式会社 , 株式会社フォトニックラティス
发明人： YAMADA HIROHITO , KAWAKAMI SHOJIRO , ODERA YASUO
IPC分类号： G02B6/122 , G02B6/12 , G02F1/01 , G02F1/313
摘要： PROBLEM TO BE SOLVED: To provide a coupled optical waveguide of which entire size can be reduced even when many optical guides are integrated on a substrate. SOLUTION: The coupled optical waveguide is provided with the substrate 11, where a groove 12 forming a line-and-space pattern is formed on the surface, and a plurality of grid modulation photonic crystal optical waveguides 10(1, 1) and 10(2, 1) prepared by a self cloning technique of alternately laminating a dielectric 13 of a low refractive index and a dielectric 14 of a high refractive index on the substrate 11 respectively. Then, a plurality of the grid modulation photonic crystal optical waveguides are arranged parallelly to each other on a surface parallel to the surface of the substrate 11. Also, the adjacent two of a plurality of the grid modulation photonic crystal optical waveguides are arranged closely so as to couple the electric fields of light between them. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种耦合光波导，即使当许多光导集成在基板上时，整个尺寸也可以减小。解决方案：耦合光波导设置有衬底11，其中在表面上形成形成线间距图案的槽12，以及多个栅格调制光子晶体光波导10（1,1）和10（2,1），其通过自身克隆技术分别在基板11上交替层叠低折射率的电介质13和高折射率的电介质14。然后，多个栅格调制光子晶体光波导在平行于基板11的表面的表面上彼此平行地配置。此外，多个栅格调制光子晶体光波导中相邻的两个被布置成紧密以便连接它们之间的电场。版权所有（C）2004，JPO

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