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公开(公告)号：US09128348B1
公开(公告)日：2015-09-08
申请号：US14418386
申请日：2013-09-26
CPC分类号： G02F1/225 , G02F1/0123 , G02F1/035 , G02F1/2255 , G02F1/2257 , G02F2001/212 , G02F2201/126 , G02F2201/16 , G02F2203/19 , H04B10/5051 , H04B10/588
摘要： An optical modulation circuit includes: a first Mach-Zehnder modulating portion including a first output port and a second output port, wherein the first Mach-Zehnder modulating portion is push-pull driven by a main signal; a second Mach-Zehnder modulating portion connected to the first output port of the first Mach-Zehnder modulating portion, wherein the second Mach-Zehnder modulating portion is push-pull driven by a correction signal; and an asymmetric light combining portion combining an optical signal outputted from an output port of the second Mach-Zehnder modulating portion with an optical signal outputted from the second output port of the first Mach-Zehnder modulating portion in a light intensity coupling ratio of r to 1−r, wherein an optical path length from the first output port to the asymmetric light combining portion is substantially equal to an optical path length from the second output port to the asymmetric light combining portion.
摘要翻译： 光调制电路包括：第一马赫 - 曾德调制部分，包括第一输出端口和第二输出端口，其中第一马赫 - 策德尔调制部分由主信号驱动; 第二马赫 - 策德尔调制部分，连接到第一马赫 - 策德尔调制部分的第一输出端口，其中第二马赫 - 策德尔调制部分由校正信号驱动; 以及非对称光合成部，其将从所述第二马赫 - 策德尔调制部的输出端口输出的光信号与从所述第一马赫 - 策德尔调制部的所述第二输出端口输出的光信号的光强度耦合比率r 1-r，其中从第一输出端口到非对称光合成部分的光路长度基本上等于从第二输出端口到非对称光合并部分的光路长度。
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公开(公告)号：US10050717B2
公开(公告)日：2018-08-14
申请号：US15551168
申请日：2016-02-19
发明人： Takashi Goh , Mikitaka Itoh , Kiyofumi Kikuchi
摘要： A multi-stage interferometer circuit of the present invention includes: a multiplexing port; (N−1) stages of lattice type two-beam interferometers, wherein each stage includes a two-beam delay circuit having a path length difference of an integral multiple of M·Δ L/2, and wherein the two-beam delay circuit of the lattice type two-beam interferometer of the first stage is connected to the multiplexing port; an M-beam interferometer including: two sets of 1×(M/2) optical couplers connected to the first optical coupler of the lattice type two-beam interferometer at the final stage; an M-array delay circuit, each delay circuit of which has a delay length different from each other by ΔL; and M×M optical couplers; and M demultiplexing ports, wherein one or more transversal filters are arranged inside the multi-stage interferometer circuit so that the light guided between the demultiplexing port and the multiplexing ports passes therethrough at least once.
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公开(公告)号：US20180034555A1
公开(公告)日：2018-02-01
申请号：US15551168
申请日：2016-02-19
发明人： Takashi Goh , Mikitaka Itoh , Kiyofumi Kikuchi
CPC分类号： H04B10/69 , G02B6/122 , G02B6/2766 , G02B6/2793 , G02B6/29355 , G02B2006/12038 , G02B2006/12147 , G02B2006/12164 , G02F1/225 , G02F2001/212 , H04J14/0298
摘要： A multi-stage interferometer circuit of the present invention includes: a multiplexing port; (N-1) stages of lattice type two-beam interferometers, wherein each stage includes a two-beam delay circuit having a path length difference of an integral multiple of M·Δ L/2, and wherein the two-beam delay circuit of the lattice type two-beam interferometer of the first stage is connected to the multiplexing port; an M-beam interferometer including: two sets of 1×(M/2) optical couplers connected to the first optical coupler of the lattice type two-beam interferometer at the final stage; an M-array delay circuit, each delay circuit of which has a delay length different from each other by ΔL; and M×M optical couplers; and M demultiplexing ports, wherein one or more transversal filters are arranged inside the multi-stage interferometer circuit so that the light guided between the demultiplexing port and the multiplexing ports passes therethrough at least once.
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公开(公告)号：US20150261059A1
公开(公告)日：2015-09-17
申请号：US14418386
申请日：2013-09-26
IPC分类号： G02F1/225
CPC分类号： G02F1/225 , G02F1/0123 , G02F1/035 , G02F1/2255 , G02F1/2257 , G02F2001/212 , G02F2201/126 , G02F2201/16 , G02F2203/19 , H04B10/5051 , H04B10/588
摘要： An optical modulation circuit includes: a first Mach-Zehnder modulating portion including a first output port and a second output port, wherein the first Mach-Zehnder modulating portion is push-pull driven by a main signal; a second Mach-Zehnder modulating portion connected to the first output port of the first Mach-Zehnder modulating portion, wherein the second Mach-Zehnder modulating portion is push-pull driven by a correction signal; and an asymmetric light combining portion combining an optical signal outputted from an output port of the second Mach-Zehnder modulating portion with an optical signal outputted from the second output port of the first Mach-Zehnder modulating portion in a light intensity coupling ratio of r to 1-r, wherein an optical path length from the first output port to the asymmetric light combining portion is substantially equal to an optical path length from the second output port to the asymmetric light combining portion.
摘要翻译： 光调制电路包括：第一马赫 - 曾德调制部分，包括第一输出端口和第二输出端口，其中第一马赫 - 策德尔调制部分由主信号驱动; 第二马赫 - 策德尔调制部分，连接到第一马赫 - 策德尔调制部分的第一输出端口，其中第二马赫 - 策德尔调制部分由校正信号驱动; 以及非对称光合成部，其将从所述第二马赫 - 策德尔调制部的输出端口输出的光信号与从所述第一马赫 - 策德尔调制部的所述第二输出端口输出的光信号的光强度耦合比率r 1-r，其中从第一输出端口到非对称光合成部分的光路长度基本上等于从第二输出端口到非对称光合并部分的光路长度。
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公开(公告)号：US20140314366A1
公开(公告)日：2014-10-23
申请号：US14358362
申请日：2012-12-21
发明人： Hiroshi Yamazaki , Takashi Saida , Takashi Goh
CPC分类号： G02F1/225 , G02F1/011 , G02F1/2255 , G02F1/2257 , G02F2001/212
摘要： An optical modulator comprises an input optical splitting unit for bifurcating input light; a final optical coupling unit for coupling optical signals in a polarization state orthogonal to each other; an intermediate optical coupling unit provided in an intermediate position between the input optical splitting unit and the final optical coupling unit; first and second optical paths for connecting the input optical splitting unit and the intermediate optical coupling unit, optical path lengths of the first and second optical paths are approximately equal; third and fourth optical paths for connecting the intermediate optical coupling unit and the final optical coupling unit, optical path lengths of third and fourth optical paths are approximately equal; and three binary phase modulation unit arranged one by one in each of the three optical paths of the first, second, third and fourth optical paths.
摘要翻译： 一种光调制器，包括用于使输入光分叉的输入光分路单元; 用于耦合彼此正交的偏振状态的光信号的最终光耦合单元; 中间光耦合单元，设置在输入光分路单元和最终光耦合单元之间的中间位置; 用于连接输入光分路单元和中间光耦合单元的第一和第二光路，第一和第二光路的光路长度近似相等; 用于连接中间光耦合单元和最终光耦合单元的第三和第四光路，第三和第四光路的光路长度近似相等; 以及在第一，第二，第三和第四光路的三个光路中的每一个中逐个布置的三个二进制相位调制单元。
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公开(公告)号：US10797817B2
公开(公告)日：2020-10-06
申请号：US16473206
申请日：2017-12-25
发明人： Kazunori Seno , Kenya Suzuki , Mitsumasa Nakajima , Keita Yamaguchi , Masashi Miyata , Takashi Goh , Toshikazu Hashimoto
摘要： Provided is an optical signal processing device that can operate simultaneously for a plurality of wavelength bands. The optical signal processing device includes a WDM coupler array including a plurality of WDM couplers for separating the C band and the L band for the respective ports; input/output port groups provided for the C band and the L band, respectively; a micro lens array; a diffraction grating; a lens; and a spatial light modulator arranged in this order. The spatial light modulator collects light at different positions for the respective wavelengths, thus allowing all wavelengths to be independently subjected to a phase modulation. Light subjected to the desired phase modulation by the spatial light modulator is reflected and is deflected to have an angle corresponding to any desired port of the input/output port group, and then is optically-coupled to an input/output port depending on the deflection angle.
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7.发明授权公开(公告)号：US09762982B2
公开(公告)日：2017-09-12
申请号：US15080282
申请日：2016-03-24
IPC分类号： H04Q11/00 , H04B10/40 , H04J14/02 , H04B10/516 , H04B10/572 , H04B10/50 , H04L27/26
CPC分类号： H04Q11/0003 , H04B10/40 , H04B10/506 , H04B10/516 , H04B10/572 , H04J14/02 , H04J14/0204 , H04J14/0205 , H04J14/021 , H04J14/0212 , H04J14/0224 , H04J14/026 , H04L27/2697 , H04Q11/0005 , H04Q2011/0035
摘要： There is provided a multi-flow optical transceiver that includes (a) a plurality of wavelength-tunable light sources, (b) a plurality of optical modulation units which modulates light with an input signal, (c) an optical multiplexing/demultiplexing switch which couples light from at least one of the wavelength-tunable light sources to at least one of the optical modulation units with any power, (d) an optical coupling unit which couples a plurality of lights, modulated by a plurality of the optical modulation units, to at least one waveguide, (e) at least one multiple carrier generating unit which generates multiple carries, arranged at equal frequency intervals, from light of the wavelength-tunable light source, and (f) a wavelength separation unit which branches the multiple carriers from the multiple carrier generating unit for each wavelength.
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公开(公告)号：US09223184B2
公开(公告)日：2015-12-29
申请号：US14358362
申请日：2012-12-21
发明人： Hiroshi Yamazaki , Takashi Saida , Takashi Goh
CPC分类号： G02F1/225 , G02F1/011 , G02F1/2255 , G02F1/2257 , G02F2001/212
摘要： An optical modulator comprises an input optical splitting unit for bifurcating input light; a final optical coupling unit for coupling optical signals in a polarization state orthogonal to each other; an intermediate optical coupling unit provided in an intermediate position between the input optical splitting unit and the final optical coupling unit; first and second optical paths for connecting the input optical splitting unit and the intermediate optical coupling unit, optical path lengths of the first and second optical paths are approximately equal; third and fourth optical paths for connecting the intermediate optical coupling unit and the final optical coupling unit, optical path lengths of third and fourth optical paths are approximately equal; and three binary phase modulation unit arranged one by one in each of the three optical paths of the first, second, third and fourth optical paths.
摘要翻译： 一种光调制器，包括用于使输入光分叉的输入光分路单元; 用于耦合彼此正交的偏振状态的光信号的最终光耦合单元; 中间光耦合单元，设置在输入光分路单元和最终光耦合单元之间的中间位置; 用于连接输入光分路单元和中间光耦合单元的第一和第二光路，第一和第二光路的光路长度近似相等; 用于连接中间光耦合单元和最终光耦合单元的第三和第四光路，第三和第四光路的光路长度近似相等; 以及在第一，第二，第三和第四光路的三个光路中的每一个中逐个布置的三个二进制相位调制单元。
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