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31. 发明申请

US20120162746A1 PLC-TYPE DELAY DEMODULATION CIRCUIT 失效
标题翻译： PLC型延迟解调电路
公开(公告)号：US20120162746A1
公开(公告)日：2012-06-28
申请号：US13336111
申请日：2011-12-23
申请人： Hiroshi KAWASHIMA , Kazutaka NARA
发明人： Hiroshi KAWASHIMA , Kazutaka NARA
IPC分类号： G02F2/00
CPC分类号： G02B6/2935 , G02B6/2861 , G02F1/225 , G02F2/00 , H04B10/677
摘要： The PLC-type delay demodulation circuit includes a planar lightwave circuit that is provided on one PLC chip and demodulates a DQPSK signal. The planar lightwave circuit includes a Y-branch waveguide that branches a DQPSK-modulated optical signal into two optical signals and first and second MZIs that delay the branched optical signals by one bit. A wave plate is provided in central portions of first and second arm waveguides of the first MZI and first and second arm waveguides of the second MZI in such a manner that the wave plate intersects all of the four arm waveguides, the four arm waveguides being close to one another in a portion where the wave plate is provided.
摘要翻译： PLC型延迟解调电路包括设置在一个PLC芯片上并解调DQPSK信号的平面光波电路。平面光波电路包括将DQPSK调制的光信号分成两个光信号的Y分支波导和将分支光信号延迟一位的第一和第二MZI。在第一MZI的第一和第二臂波导的中心部分和第二MZI的第一和第二臂波导的中心部分中设置波片，使得波片与四个臂波导中的所有四个波导相交，四个波导波导接近在设置波片的部分中彼此相对。

32. 发明申请

US20120014636A1 WAVEGUIDE-TYPE OPTICAL CIRCUIT 有权
标题翻译：波导型光电路
公开(公告)号：US20120014636A1
公开(公告)日：2012-01-19
申请号：US12836145
申请日：2010-07-14
申请人： Noritaka Matsubara , Kazutaka Nara
发明人： Noritaka Matsubara , Kazutaka Nara
IPC分类号： G02B6/125 , G02F1/035
CPC分类号： G02B6/125 , G02B6/122 , G02B6/126 , G02B2006/12159 , G02F1/0147 , G02F1/225
摘要： A waveguide-type optical circuit comprises an optical coupler being an optical branch coupler constructed from waveguide cores which are closely arranged each other, and dummy patterns that lay along sides of the waveguide cores in the optical coupler for preventing optical major axes of the waveguide cores from inclining.
摘要翻译：一种波导型光电路包括一个光耦合器，它是由彼此紧密排列的波导芯构成的光分支耦合器，以及位于光耦合器中的波导芯侧面的伪图案，用于防止波导芯的光学长轴从倾斜。

33. 发明授权

US08023781B2 Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function 失效
标题翻译：宽带波长复用和解复用滤波器和光分路器具有光信号复用和解复用功能
公开(公告)号：US08023781B2
公开(公告)日：2011-09-20
申请号：US12983637
申请日：2011-01-03
申请人： Kazutaka Nara , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
发明人： Kazutaka Nara , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
IPC分类号： G02B6/12
CPC分类号： G02B6/2938 , G02B6/12007 , G02B6/29355 , G02B2006/12159
摘要： Two Mach-Zehnder optical interferometer circuits are accurately point-symmetrically connected to each other to form a first point-symmetrically connected optical interferometer circuit constituting a light input side circuit. Optical signals having a plurality of wavelengths are input to a light input terminal. A second point-symmetrically connected optical interferometer circuit having the same functional structure as the first point-symmetrically connected optical interferometer circuit is connected to a through port, which is an output terminal of the light input side circuit, as a first light output side circuit. A cross port, which is the other output terminal of the light input side circuit, is connected to a second light output side circuit having at least one of Mach-Zehnder optical interferometer circuits whose transmittance characteristics are different from those of the Mach-Zehnder optical interferometer circuits.
摘要翻译：两个Mach-Zehnder光学干涉仪电路彼此精确地点对称连接，以形成构成光输入侧电路的第一点对称连接的光学干涉仪电路。具有多个波长的光信号被输入到光输入端。具有与第一点对称连接的光干涉仪电路相同的功能结构的第二点对称连接的光干涉仪电路作为第一光输出侧电路连接到作为光输入侧电路的输出端的通孔。作为光输入侧电路的另一输出端子的交叉端口连接到第二光输出侧电路，该第二光输出侧电路具有至少一个马赫 - 策德光干涉仪电路，其传输特性与马赫 - 策德尔光学干涉仪电路。

34. 发明申请

US20110110622A1 HYBRID INTEGRATED OPTICAL MODULE 失效
标题翻译：混合集成光模块
公开(公告)号：US20110110622A1
公开(公告)日：2011-05-12
申请号：US12942481
申请日：2010-11-09
申请人： Takeshi AKUTSU , Junichi Hasegawa , Kazutaka Nara
发明人： Takeshi AKUTSU , Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02B6/12 , H01P11/00
CPC分类号： G02B6/4225 , Y10T29/49016
摘要： The present invention provides a hybrid integrated optical module having a high coupling efficiency by suppressing a connection loss between waveguides. A hybrid integrated optical module according to an embodiment of the present invention is an optical module which integrates a semiconductor chip and a PLC chip. The semiconductor chip has a semiconductor waveguide and is mounted on a Si bench. The PLC chip includes a PLC substrate and an optical waveguide formed on the PLC substrate. An end face of the semiconductor chip protrudes from an end face of the Si bench toward the PLC chip side by a protrusion amount X. Gap adjustment (adjustment of a distance D) between the semiconductor waveguide and the optical waveguide becomes possible by setting a position where the end face of the semiconductor chip is brought into contact with an end face of the PLC chip to be a reference position (zero point).
摘要翻译：本发明通过抑制波导之间的连接损耗来提供具有高耦合效率的混合集成光模块。根据本发明的实施例的混合集成光学模块是集成了半导体芯片和PLC芯片的光学模块。半导体芯片具有半导体波导并且安装在Si台架上。 PLC芯片包括形成在PLC基板上的PLC基板和光波导。半导体芯片的端面从Si台架的端面朝向PLC芯片侧突出突出量X.通过设置半导体波导和光波导之间的间隙调整（距离D的调整）可以进行位置其中半导体芯片的端面与PLC芯片的端面接触成为基准位置（零点）。

35. 发明授权

US07885493B2 Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function 失效
标题翻译：宽带波长复用和解复用滤波器和光分路器具有光信号复用和解复用功能
公开(公告)号：US07885493B2
公开(公告)日：2011-02-08
申请号：US12324205
申请日：2008-11-26
申请人： Kazutaka Nara , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
发明人： Kazutaka Nara , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
IPC分类号： G02B6/12
CPC分类号： G02B6/2938 , G02B6/12007 , G02B6/29355 , G02B2006/12159
摘要： Two Mach-Zehnder optical interferometer circuits 13a and 13b are accurately point-symmetrically connected to each other to form a first point-symmetrically connected optical interferometer circuit 5 constituting a light input side circuit 1. Optical signals having a plurality of wavelengths are input to a light input terminal 17. A second point-symmetrically connected optical interferometer circuit 7 having the same functional structure as the first point-symmetrically connected optical interferometer circuit 5 is connected to a through port 18, which is an output terminal of the light input side circuit 1, as a first light output side circuit 2. A cross port 19, which is the other output terminal of the light input side circuit 1, is connected to a second light output side circuit 3 having at least one of Mach-Zehnder optical interferometer circuits 13c and 13d whose transmittance characteristics are different from those of the Mach-Zehnder optical interferometer circuits 13a and 13b.
摘要翻译：两个马赫 - 策德尔光学干涉仪电路13a和13b彼此精确地点对称连接，以形成构成光输入侧电路1的第一点对称连接的光干涉仪电路5.具有多个波长的光信号被输入到具有与第一点对称连接的光干涉仪电路5相同的功能结构的第二点对称连接的光干涉仪电路7连接到作为光输入侧电路的输出端的通孔18 作为第一光输出侧电路2.作为光输入侧电路1的另一输出端的交叉口19连接到第二光输出侧电路3，该电路具有至少一个马赫 - 策德光干涉仪电路13c和13d的透射率特性与马赫 - 策德尔光学干涉仪电路13a和13b的不同。

36. 发明申请

US20100303410A1 ARRAYED WAVEGUIDE GRATING 审中-公开
标题翻译：阵列波形光栅
公开(公告)号：US20100303410A1
公开(公告)日：2010-12-02
申请号：US12787096
申请日：2010-05-25
申请人： Kazutaka Nara , Noritaka Matsubara
发明人： Kazutaka Nara , Noritaka Matsubara
IPC分类号： G02B6/34
CPC分类号： G02B6/12011
摘要： An arrayed waveguide grating includes: at least one input waveguide; an input slab waveguide connected to the input waveguide; a plurality of output waveguides; an output slab waveguide connected to the output waveguides; and an arrayed waveguide. The arrayed waveguide includes: M channel waveguides connected between the input slab waveguide and the output slab waveguide; and a phase correcting portion configured to provide a predetermined phase to at least a part of the M channel waveguides by a form of the at least the part of the M channel waveguides being changed.
摘要翻译：阵列波导光栅包括：至少一个输入波导; 连接到输入波导的输入板波导; 多个输出波导; 连接到输出波导的输出平板波导; 和阵列波导。阵列波导包括：连接在输入平板波导和输出平板波导之间的M个通道波导; 以及相位校正部分，被配置为通过正在改变的M个波导波导的至少一部分的形式向至少一部分M波导波导提供预定相位。

37. 发明授权

US07555175B2 Arrayed waveguide grating optical multiplexer/demultiplexer 失效
标题翻译：阵列波导光栅光复用器/解复用器
公开(公告)号：US07555175B2
公开(公告)日：2009-06-30
申请号：US11844762
申请日：2007-08-24
申请人： Kazutaka Nara
发明人： Kazutaka Nara
IPC分类号： G02B6/12
CPC分类号： G02B6/12019
摘要： An arrayed waveguide grating optical multiplexer/demultiplexer 10 of the present invention 10 comprises one arrayed waveguide grating (AWG) 20 having two input waveguides 21, 22 and two output waveguide-groups 23, 24, and a Mach Zehnder Interferometer-type interleaver 30 integrated with the AWG 20. Each of the input waveguides 21, 22 is formed by a Mach Zehnder Interferometer having the same free spectral range as the frequency spacing of the AWG. The Interferometer includes a 3 dB coupler 51 connected to the 3 dB coupler 32, a 100% coupler 52, a waveguide delay line 53 with an optical path length difference ΔL of 4.1 mm formed between the couplers 51, 52, and a phase shifter 54 of π formed between the 100% coupler 52 and a 3 dB coupler 55 connected to the first slab waveguide 25.
摘要翻译：本发明10的阵列波导光栅光复用器/解复用器10包括具有两个输入波导21,22和两个输出波导组23,24的一个阵列波导光栅（AWG）20和一个集成了马赫曾德干涉仪型交织器30 每个输入波导21,22由具有与AWG的频率间隔相同的自由光谱范围的马赫曾德干涉仪形成。干涉仪包括连接到3dB耦合器32的3dB耦合器51，100％耦合器52，在耦合器51,52和移相器54之间形成的光程长度差ΔL为4.1mm的波导延迟线53 形成在100％耦合器52和连接到第一平板波导25的3dB耦合器55之间。

38. 发明授权

US07539368B2 Arrayed waveguide grating 失效
标题翻译：阵列波导光栅
公开(公告)号：US07539368B2
公开(公告)日：2009-05-26
申请号：US12041231
申请日：2008-03-03
申请人： Junichi Hasegawa , Kazutaka Nara
发明人： Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02B6/12 , G02B6/34
CPC分类号： G02B6/1203 , G02B6/12014
摘要： An arrayed waveguide grating has optical input waveguides, a first slab waveguide, an arrayed waveguide comprising plural waveguides of mutually-different lengths, a second slab waveguide and plural optical output waveguides. The first slab waveguide is divided along division surfaces crossing the light path into divided slab waveguides. The divided slab waveguide is temperature-dependently moved along the division surfaces by sliding members which are formed of members exhibiting different expansion/contraction corresponding to temperature change. The sliding members are configured to move the divided slab waveguide in their respective mutually-different temperature ranges in the operating temperature range of the arrayed waveguide grating. A sliding distance of the divided slab waveguide is used as a temperature-dependence reduction amount that varies as temperature changes so as to reduce the temperature difference of the light transmission center wavelength of the arrayed waveguide grating.
摘要翻译：阵列波导光栅具有光输入波导，第一平板波导，包括相互不同长度的多个波导的阵列波导，第二平板波导和多个光输出波导。将第一平板波导沿着穿过光路的划分表面划分成分开的平板波导。分开的平板波导通过由对应于温度变化显示不同的膨胀/收缩的构件形成的滑动构件沿分割表面温度依赖地移动。滑动构件被构造成在阵列波导光栅的工作温度范围内将分开的平板波导移动到它们各自相互不同的温度范围内。使用分开的平板波导的滑动距离作为随着温度变化而变化的温度依赖性降低量，以降低阵列波导光栅的透光中心波长的温差。

39. 发明申请

US20090110393A1 BROADBAND WAVELENGTH MULTIPLEXING AND DEMULTIPLEXING FILTER AND OPTICAL SPLITTER WITH OPTICAL SIGNAL MULTIPLEXING AND DEMULTIPLEXING FUNCTION 失效
标题翻译：宽带波长多路复用滤波器和光分路器，具有光信号多路复用和解复用功能
公开(公告)号：US20090110393A1
公开(公告)日：2009-04-30
申请号：US12324205
申请日：2008-11-26
申请人： Kazutaka NARA , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
发明人： Kazutaka NARA , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
IPC分类号： G02B6/12
CPC分类号： G02B6/2938 , G02B6/12007 , G02B6/29355 , G02B2006/12159
摘要： Two Mach-Zehnder optical interferometer circuits 13a and 13b are accurately point-symmetrically connected to each other to form a first point-symmetrically connected optical interferometer circuit 5 constituting a light input side circuit 1. Optical signals having a plurality of wavelengths are input to a light input terminal 17. A second point-symmetrically connected optical interferometer circuit 7 having the same functional structure as the first point-symmetrically connected optical interferometer circuit 5 is connected to a through port 18, which is an output terminal of the light input side circuit 1, as a first light output side circuit 2. A cross port 19, which is the other output terminal of the light input side circuit 1, is connected to a second light output side circuit 3 having at least one of Mach-Zehnder optical interferometer circuits 13c and 13d whose transmittance characteristics are different from those of the Mach-Zehnder optical interferometer circuits 13a and 13b.
摘要翻译：两个马赫 - 策德尔光学干涉仪电路13a和13b彼此精确地点对称连接，以形成构成光输入侧电路1的第一点对称连接的光干涉仪电路5.具有多个波长的光信号被输入到具有与第一点对称连接的光干涉仪电路5相同的功能结构的第二点对称连接的光干涉仪电路7连接到作为光输入侧电路的输出端的通孔18 作为第一光输出侧电路2.作为光输入侧电路1的另一输出端的交叉口19连接到第二光输出侧电路3，该电路具有至少一个马赫 - 策德光干涉仪电路13c和13d的透射率特性与马赫 - 策德尔光学干涉仪电路13a和13b的不同。

40. 发明申请

US20070104409A1 Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function 失效
标题翻译：宽带波长复用和解复用滤波器和光分路器具有光信号复用和解复用功能
公开(公告)号：US20070104409A1
公开(公告)日：2007-05-10
申请号：US10560132
申请日：2005-01-25
申请人： Kazutaka Nara , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
发明人： Kazutaka Nara , Haruki Urabe , Tsunetoshi Saitoh , Masahito Morimoto
IPC分类号： G02B6/12
CPC分类号： G02B6/2938 , G02B6/12007 , G02B6/29355 , G02B2006/12159
摘要： Two Mach-Zehnder optical interferometer circuits 13a and 13b are accurately point-symmetrically connected to each other to form a first point-symmetrically connected optical interferometer circuit 5 constituting a light input side circuit 1. Optical signals having a plurality of wavelengths are input to a light input terminal 17. A second point-symmetrically connected optical interferometer circuit 7 having the same functional structure as the first point-symmetrically connected optical interferometer circuit 5 is connected to a through port 18, which is an output terminal of the light input side circuit 1, as a first light output side circuit 2. A cross port 19, which is the other output terminal of the light input side circuit 1, is connected to a second light output side circuit 3 having at least one of Mach-Zehnder optical interferometer circuits 13c and 13d whose transmittance characteristics are different from those of the Mach-Zehnder optical interferometer circuits 13a and 13b.
摘要翻译：两个马赫策德尔光干涉仪电路13a和13b彼此精确地点对称连接，以形成构成光输入侧电路1的第一点对称连接的光干涉仪电路5。具有多个波长的光信号被输入到光输入端17。具有与第一点对称连接的光干涉仪电路5相同的功能结构的第二点对称连接的光干涉仪电路7连接到作为光输入侧电路1的输出端的通孔18，作为第一光输出侧电路2。作为光输入侧电路1的另一输出端子的交叉口19与具有透射特性不同的马赫 - 策德光电干涉仪电路13c和13d中的至少一个的第二光输出侧电路3连接来自马赫 - 策德尔光电干涉仪电路13a和13b的那些。

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