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11. 发明授权

US07961991B2 Delay demodulation devices 有权
标题翻译：延时解调装置
公开(公告)号：US07961991B2
公开(公告)日：2011-06-14
申请号：US12412932
申请日：2009-03-27
申请人： Junichi Hasegawa , Kazutaka Nara
发明人： Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02B6/12
CPC分类号： G02F2/00 , G02F2001/212
摘要： The delay demodulation device 1 comprises an input waveguide 2 which receives DQPSK signals; a Y-branch waveguide 3 which splits the light waveguide 2; a first Mach-Zehnder interferometer (MZI) 4; and a second Mach-Zehnder interferometer 5. Both ends of the arm-waveguides 8, 9 of the MZI 4 and the both ends of the arm-waveguides 12, 13 of the MZI 5 are bent toward the center portion of the planar lightwave circuit (PLC) 1A. Thereby, the length of the arm-waveguides 8, 9 of the MZI 4 and the length of the arm-waveguides of the MZI 5 are shortened in the Z-direction. And, the length of the input couplers 6, 10 and the output couplers 7, 11 of the MZIs 4, 5 are shortened in the Z-direction. Therefore, the area covered by the MZIs 4, 5 can be made smaller.
摘要翻译：延迟解调装置1包括接收DQPSK信号的输入波导2; 分离光波导2的Y分支波导3; 第一马赫曾德尔干涉仪（MZI）4; 和第二马赫 - 策德尔干涉仪5.MZI4的臂波导8,9的两端和MZI 5的臂波导12,13的两端朝向平面光波电路的中心部分弯曲（PLC）1A。由此，MZI4的臂波导8,9的长度和MZI 5的臂波导的长度在Z方向上缩短。并且，输入耦合器6,10的长度和MZI 4,5的输出耦合器7,11在Z方向上缩短。因此，MZI 4,5的覆盖范围可以更小。

12. 发明申请

US20090097101A1 DELAY-LINE DEMODULATOR 失效
标题翻译：延迟线解调器
公开(公告)号：US20090097101A1
公开(公告)日：2009-04-16
申请号：US12248871
申请日：2008-10-09
申请人： Junichi Hasegawa , Kazutaka Nara
发明人： Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02F2/00
CPC分类号： G02F2/00 , H04B10/505 , H04B10/677
摘要： Problem to be Solved To provide a delay-line demodulator of which the divergence amount of polarization is reduced.Solution: A delay-line demodulator 1 for a DQPSK signal to be demodulated comprises two of Mach-Zehnder interferometers 6 and 7 individually comprising two of waveguides having different lengths therebetween through which a light signal branched the DQPSK signal propagates respectively, for delaying a phase of the light signal propagating at one of the waveguides as an amount of one symbol comparing to a phase of the light signal propagating at another one of the waveguides, wherein a divergence amount of polarization is adjusted by driving a first heater A and a fourth heater D, or a third heater B and a second heater C, that are facing to each other as sandwiching a half wavelength plate therebetween.
摘要翻译：要解决的问题提供减小偏振发散量的延迟线解调器。解决方案：用于要解调的DQPSK信号的延迟线解调器1包括两个马赫 - 策德尔干涉仪6和7，其分别包括两个不同长度的波导，通过该两个波导分支DQPSK信号的光信号分别传播，以延迟相位在一个波导上传播的光信号作为与在另一个波导上传播的光信号的相位相比的一个符号的量，其中通过驱动第一加热器A和第四加热器来调节偏振的发散量 D或第三加热器B和第二加热器C，它们彼此面对，将半波长板夹在其间。

13. 发明授权

US07480091B2 Delay-line demodulator and method of adjusting a phase shift in the demodulator 失效
标题翻译：延迟线解调器和调制解调器相移的方法
公开(公告)号：US07480091B2
公开(公告)日：2009-01-20
申请号：US12042768
申请日：2008-03-05
申请人： Junichi Hasegawa , Kazutaka Nara
发明人： Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02F2/00
CPC分类号： G02F1/225 , G02F1/0147 , G02F2201/16 , G02F2201/20 , H04B10/677
摘要： In a method of phase adjustment for the demodulator 1 of the present invention, the phase adjustment is performed by driving any one of the heaters on the two waveguides 10 and 11 in the Mach-Zehnder interferometer (MZI) 6 and on the two waveguides 14 and 15 in the MZI 7. In case that an initial phase difference between the MZIs 6 and 7 smaller than a required phase difference as π/2 therebetween, the heaters C and D are driven, that are formed on the first waveguide 10 in the MZI 6, and the heaters G and H are driven, that are formed on the second waveguide 15 in the MZI 7. In case that the initial phase difference is larger than the required phase difference (π/2) therebetween, the heaters A and B formed on the second waveguide 11 in the MZI 6, and the heaters E and F formed on the first waveguide 14 in the MZI 7 are driven.
摘要翻译：在本发明的解调器1的相位调整方法中，通过驱动马赫曾德尔干涉仪（MZI）6中的两个波导10和11上的加热器中的任何一个以及两个波导14 在MZI7中为15。在MZI6和7之间的初始相位差小于所要求的相位差为π/ 2的情况下，驱动加热器C和D，在第一波导10上形成 MZI6，并且驱动加热器G和H，其形成在MZI 7中的第二波导15上。在初始相位差大于其间所需的相位差（pi / 2）的情况下，加热器A和 B形成在MZI 6中的第二波导11上，并且形成在MZI 7中的第一波导14上的加热器E和F被驱动。

14. 发明申请

US20120195552A1 ARRAYED WAVEGUIDE GRATING TYPE OPTICAL MULTIPLEXER AND DEMULTIPLEXER 审中-公开
标题翻译：阵列波导型光学多路复用器和解复用器
公开(公告)号：US20120195552A1
公开(公告)日：2012-08-02
申请号：US13361285
申请日：2012-01-30
申请人： Junichi Hasegawa , Kazutaka Nara
发明人： Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02B6/34
CPC分类号： G02B6/1203
摘要： An arrayed waveguide grating type optical multiplexer and demultiplexer which achieves a low crosstalk even when temperature changes is provided, comprising, on a substrate, a waveguide chip in which an arrayed waveguide grating is formed that has a first waveguide, a first slab waveguide, an arrayed waveguide, a second slab waveguide, and a second waveguide, the waveguide chip being divided into two by any of the first and second slab waveguide, and includes a first glass plate to which one side of the arrayed waveguide grating divided into two in the waveguide chip is fixed, a second glass plate to which the other side thereof is fixed, and a compensation member compensating a temperature dependent shift of a light transmission center wavelength of the arrayed waveguide grating, wherein a part for the arrayed waveguide is not fixed to any of the first and second glass plates.
摘要翻译：一种阵列波导光栅类型的光信号多路复用器和解复用器，即使在提供温度变化时也实现了低串扰，其中包括在基板上形成有阵列波导光栅的波导芯片，其中波导芯片具有第一波导，第一平板波导，阵列波导，第二平板波导和第二波导，波导芯片由第一和第二平板波导中的任一个分成两部分，并且包括第一玻璃板，阵列波导光栅的一侧在其中分成两个波导芯片固定，固定另一侧的第二玻璃板和补偿阵列波导光栅的透光中心波长的温度相关偏移的补偿部件，其中阵列波导的部分不固定到任何第一和第二玻璃板。

15. 发明授权

US08036505B2 Athermal AWG module 失效
标题翻译： Athermal AWG模块
公开(公告)号：US08036505B2
公开(公告)日：2011-10-11
申请号：US12646237
申请日：2009-12-23
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 , G02B6/4212
摘要： An athermal AWG module 10 comprises: an AWG 11 having waveguides partially divided to separate a chip, separated chips being connected by a compensation plate 33 to achieve temperature-independence; an athermal AWG chip 12 having a substrate and the AWG 11 formed on the substrate; a package 13 having an opening 14 and accommodating the athermal AWG chip 12; and a cover for blocking the opening 14. The athermal AWG chip 12 is fully covered with a gelled refractive index matching agent 16 that is matched in refractive index to the waveguides of the AWG 11. As the gelled refractive index matching agent 16 is excellent in water resistance and hardly passes water, the adhesive agent for fixing the compensation plate 33 to the surfaces of the separated two chips is prevented from being deteriorated due to ingress of water, thereby enhancing the reliability.
摘要翻译：无热AWG模块10包括：具有部分分割以分离芯片的波导的AWG 11，分离的芯片通过补偿板33连接以实现温度独立性; 具有衬底和形成在衬底上的AWG 11的无热AWG芯片12; 具有开口14并容纳无热AWG芯片12的封装13; 以及用于阻挡开口14的盖。无热AWG芯片12完全被折射率匹配的凝胶折射率匹配剂16覆盖到AWG 11的波导上。由于凝胶化折射率匹配剂16优异防水性难以通过水，因此防止了将补偿板33固定在分离的两片的表面上的粘合剂由于水的侵入而劣化，从而提高了可靠性。

16. 发明申请

US20100053731A1 DELAY DEMODULATION DEVICES 有权
标题翻译：延迟解调设备
公开(公告)号：US20100053731A1
公开(公告)日：2010-03-04
申请号：US12412932
申请日：2009-03-27
申请人： Junichi HASEGAWA , Kazutaka Nara
发明人： Junichi HASEGAWA , Kazutaka Nara
IPC分类号： G02F2/00
CPC分类号： G02F2/00 , G02F2001/212
摘要： Delay demodulation devices with optimized temperature and pressure distribution on a Planar Lightwave Circuit (PLC) are provided. The delay demodulation device 1 comprises: an input waveguide 2, which receives DQPSK signals; a Y-shape waveguide 3, which splits the light waveguide 2; a first Mach-Zehnder interferometer 4; and a second Mach-Zehnder interferometer 5. Both ends of arm waveguides 8, 9 on Mach-Zehnder interferometer 4 and the both ends of arm waveguides 12, 13 on Mach-Zehnder interferometer 5 are bent toward the center portion of the PLC. Because of the angle, the lengths of these arm waveguides 8, 9 are shortened in the Z-direction, and input couplers 6, 10 and output couplers 7, 11 of the Mach-Zehnder interferometers are shortened as well in the Z-direction. Therefore, the area covered by the Mach-Zehnder interferometers 4, 5 is reduced.
摘要翻译：提供了在平面光波电路（PLC）上具有优化的温度和压力分布的延迟解调装置。延迟解调装置1包括：输入波导2，其接收DQPSK信号; 分割光波导2的Y形波导3; 第一马赫 - 曾德干涉仪4; 和第二马赫 - 策德尔干涉仪5.马赫 - 策德尔干涉仪4上的臂波导8,9的两端和马赫 - 策德尔干涉仪5上的臂波导12,13的两端朝向PLC的中心部分弯曲。由于角度，这些臂波导8,9的长度在Z方向上缩短，并且马赫 - 策德尔干涉仪的输入耦合器6,10和输出耦合器7,11也在Z方向上缩短。因此，减少了Mach-Zehnder干涉仪4,5所覆盖的区域。

17. 发明授权

US07649678B2 Delay-line demodulator 失效
标题翻译：延迟线解调器
公开(公告)号：US07649678B2
公开(公告)日：2010-01-19
申请号：US12248871
申请日：2008-10-09
申请人： Junichi Hasegawa , Kazutaka Nara
发明人： Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02F2/00 , G02B6/12
CPC分类号： G02F2/00 , H04B10/505 , H04B10/677
摘要： A delay-line demodulator for demodulating a differential quadrature phase shift keying (DQPSK) signal is provided. The demodulator includes two Mach-Zehnder interferometers individually comprising two waveguides having different lengths therebetween and through which a light signal branched from the DQPSK signal propagates, respectively. A phase of the light signal propagating at one of the waveguides is delayed as compared to a phase of the light signal propagating at another one of the waveguides, wherein a divergence amount of polarization is adjusted by driving sets of heaters that are facing each other and sandwiching a half wavelength plate therebetween.
摘要翻译：提供了用于解调差分正交相移键控（DQPSK）信号的延迟线解调器。解调器包括两个马赫 - 曾德干涉仪，它们分别包括两个不同长度的波导，分别从DQPSK信号分支的光信号通过该波导传播。与在另一个波导上传播的光信号的相位相比，在波导中的一个传播的光信号的相位被延迟，其中通过驱动彼此面对的加热器组来调节偏振的发散量，在其间夹着半波片。

18. 发明申请

US20080239465A1 DELAY-LINE DEMODULATOR AND METHOD OF ADJUSTING A PHASE SHIFT IN THE DEMODULATOR 失效
标题翻译：延迟线解调器和调制器中的相位移位方法
公开(公告)号：US20080239465A1
公开(公告)日：2008-10-02
申请号：US12042768
申请日：2008-03-05
申请人： Junichi Hasegawa , Kazutaka Nara
发明人： Junichi Hasegawa , Kazutaka Nara
IPC分类号： G02F2/00
CPC分类号： G02F1/225 , G02F1/0147 , G02F2201/16 , G02F2201/20 , H04B10/677
摘要： In a method of phase adjustment for the demodulator 1 of the present invention, the phase adjustment is performed by driving any one of the heaters on the two waveguides 10 and 11 in the Mach-Zehnder interferometer (MZI) 6 and on the two waveguides 14 and 15 in the MZI 7. In case that an initial phase difference between the MZIs 6 and 7 smaller than a required phase difference as π/2 therebetween, the heaters C and D are driven, that are formed on the first waveguide 10 in the MZI 6, and the heaters G and H are driven, that are formed on the second waveguide 15 in the MZI 7. In case that the initial phase difference is larger than the required phase difference (π/2) therebetween, the heaters A and B formed on the second waveguide 11 in the MZI 6, and the heaters E and F formed on the first waveguide 14 in the MZI 7 are driven.
摘要翻译：在本发明的解调器1的相位调整方法中，通过驱动马赫曾德尔干涉仪（MZI）6中的两个波导10和11上的加热器中的任一个以及两个波导14 在MZI 7中有15个。在MZI6和7之间的初始相位差小于所要求的相位差的情况下，作为其间的π/ 2，加热器C和D被驱动，形成在MZI6中的第一波导10上，加热器G 并且H被驱动，其形成在MZI 7中的第二波导15上。在初始相位差大于其间所需的相位差（pi / 2）的情况下，形成在MZI 6中的第二波导11上的加热器A和B以及形成在第一波导14上的加热器E和F MZI 7被驱动。

19. 发明申请

US20120195553A1 ARRAYED WAVEGUIDE GRATING TYPE OPTICAL MULTIPLEXER AND DEMULTIPLEXER 审中-公开
标题翻译：阵列波导型光学多路复用器和解复用器
公开(公告)号：US20120195553A1
公开(公告)日：2012-08-02
申请号：US13364675
申请日：2012-02-02
申请人： Junichi HASEGAWA , Kazutaka Nara
发明人： Junichi HASEGAWA , Kazutaka Nara
IPC分类号： G02B6/34
CPC分类号： G02B6/12014
摘要： An arrayed waveguide grating type optical multiplexer and demultiplexer which reduces a package size although plural arrayed waveguide gratings are included, is provided, comprising plural arrayed waveguide gratings which are provided in parallel to one another on a substrate and each of which has a first waveguide, a first slab waveguide, an arrayed waveguide, a second slab waveguide, and a second waveguide, and also includes a waveguide chip divided into a first and second separated waveguide chip in the first or second slab waveguide in each of the arrayed waveguide gratings and a compensation member compensating a temperature dependent shift of a light transmission center wavelength in the arrayed waveguide grating by relatively moving the first and second waveguide chip when expanded or contracted according to a temperature change. The waveguide chip has a shape bending along a bending direction of the arrayed waveguide.
摘要翻译：提供了包括多个阵列波导光栅的减小封装尺寸的阵列波导光栅类型的光信号多路复用器和解复用器，包括多个阵列波导光栅，它们在基片上彼此平行地设置，并且每一个具有第一波导，第一平板波导，阵列波导，第二平板波导和第二波导，并且还包括在每个阵列波导光栅中的第一或第二平板波导中分为第一和第二分离波导芯片的波导芯片，以及补偿部件通过根据温度变化而扩展或收缩时相对移动第一和第二波导芯片来补偿阵列波导光栅中的透光中心波长的温度相关偏移。波导芯片具有沿着阵列波导的弯曲方向弯曲的形状。

20. 发明申请

US20100278483A1 ATHERMAL AWG MODULE 失效
标题翻译： ATHERMAL AWG模块
公开(公告)号：US20100278483A1
公开(公告)日：2010-11-04
申请号：US12646237
申请日：2009-12-23
申请人： Junichi HASEGAWA , Kazutaka Nara
发明人： Junichi HASEGAWA , Kazutaka Nara
IPC分类号： G02B6/34
CPC分类号： G02B6/1203 , G02B6/4212
摘要： An athermal AWG module 10 comprises: an AWG 11 having waveguides partially divided to separate a chip, separated chips being connected by a compensation plate 33 to achieve temperature-independence; an athermal AWG chip 12 having a substrate and the AWG 11 formed on the substrate; a package 13 having an opening 14 and accommodating the athermal AWG chip 12; and a cover for blocking the opening 14. The athermal AWG chip 12 is fully covered with a gelled refractive index matching agent 16 that is matched in refractive index to the waveguides of the AWG 11. As the gelled refractive index matching agent 16 is excellent in water resistance and hardly passes water, the adhesive agent for fixing the compensation plate 33 to the surfaces of the separated two chips is prevented from being deteriorated due to ingress of water, thereby enhancing the reliability.
摘要翻译：无热AWG模块10包括：具有部分分割以分离芯片的波导的AWG 11，分离的芯片通过补偿板33连接以实现温度独立性; 具有衬底和形成在衬底上的AWG 11的无热AWG芯片12; 具有开口14并容纳无热AWG芯片12的封装13; 以及用于阻挡开口14的盖。无热AWG芯片12完全被折射率匹配的凝胶折射率匹配剂16覆盖到AWG 11的波导上。由于凝胶化折射率匹配剂16优异防水性难以通过水，因此防止了将补偿板33固定在分离的两片的表面上的粘合剂由于水的侵入而劣化，从而提高了可靠性。

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