公开(公告)号：US07035500B2

公开(公告)日：2006-04-25

申请号：US10490840

申请日：2002-09-27

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B6/26 ,  G02B6/42

CPC classification number: G02F1/313 ,  G02B6/2813 ,  G02B6/3516 ,  G02B6/3546 ,  G02B6/356 ,  G02B6/3576 ,  G02F2001/217

Abstract: The present invention relates to device for space selective switching of an optical signal from an input access waveguide to a first selected output access waveguide. Said device comprising a multi-mode interference (MMI) waveguide having at a first side a number, N, of accesses for connection of access waveguides. Said MMI waveguide having a length, in light propagating direction, so that an image at the i:th, i≦N access waveguide propagating into said MMI waveguide will produce N self-images at a second side opposite to said first side, where N is an integer than 1. Said device further comprises reflective means located in said MMI waveguide close to said second side, arranged to reflect said N self-images towards said first side of said MMI waveguide, and means, arranged at said second side, for adjusting the phase of each of said self-images to create a single self-image at said selected output access waveguide.

Abstract translation: 本发明涉及用于从输入接入波导到第一选择输出接入波导的光信号的空间选择性切换的装置。 所述装置包括多模干涉（MMI）波导，其在第一侧具有用于连接接入波导的数量N的访问。 所述MMI波导具有在光传播方向上的长度，使得传播到所述MMI波导中的i i，i i = N个存取波导上的图像将在与所述第一侧相对的第二侧产生N个自身图像，其中 N是比1的整数。所述装置还包括位于靠近所述第二侧的所述MMI波导中的反射装置，被布置成将所述N个自身图像朝向所述MMI波导的所述第一侧反射，以及布置在所述第二侧的装置， 用于调整每个所述自身图像的相位以在所述选择的输出存取波导处产生单个自身图像。

公开(公告)号：US06222960B1

公开(公告)日：2001-04-24

申请号：US09157625

申请日：1998-09-21

Applicant: Leif Stensland ,  Georges Borak ,  Torsten Augustsson ,  Mats Granberg

Inventor： Leif Stensland ,  Georges Borak ,  Torsten Augustsson ,  Mats Granberg

IPC: G02B614

CPC classification number: G02B6/2813 ,  G02B6/02

Abstract: Optical elements utilize multimode interference in a piece of an optical fiber of multimode type having a core in the shape of a ring or a tubular structure. Such a fiber can be compared to a planar waveguide, the core of which has been bent about a longitudinal axis located at some distance from the core. Such an optical fiber can be optically excited having an excitation centre in a point on or at the annular core by coupling from a single-mode fiber. Then different optical propagation modes are excited having approximately regular relations between their phase velocities so that, for example, for a suitable length of the fiber piece a light intensity is obtained in the other end of the fiber piece which is an approximate reflected image of the light intensity supplied at the input end of the fiber piece. Such an optical element can, for example, be used as a filter or as a passive 1×N-coupler, where in the latter case the length of the fiber piece is adapted so that an N-fold image of the supplied light intensity is obtained at the output end of the fiber piece.

Abstract translation: 光学元件在具有环形或管状结构的芯的多模式光纤片中使用多模干涉。 可以将这样的光纤与平面波导进行比较，其平面波导已经围绕位于离核心一定距离的纵向轴弯曲。 这种光纤可以通过从单模光纤耦合而被光学激发，其具有在环形芯上或其上的点处的激发中心。 然后激发不同的光学传播模式，其相位速度之间具有近似规则的关系，使得例如对于纤维片的适当长度，在纤维片的另一端获得光强度，该光强度是 在光纤片的输入端提供的光强度。 这样的光学元件可以例如用作滤光器或被动1xN耦合器，其中在后一种情况下，纤维片的长度被适配成使得所提供的光强度的N倍图像在 纤维片的输出端。

公开(公告)号：US06574391B2

公开(公告)日：2003-06-03

申请号：US09846305

申请日：2001-05-02

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B628

CPC classification number: H04J14/0213 ,  G02F1/225 ,  G02F1/3136 ,  G02F2001/212 ,  G02F2201/307 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0216 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0022 ,  H04Q2011/0032

Abstract: The present invention relates to an apparatus and a method for wavelength selective switching of a plurality of optical wavelength channels. The apparatus comprises two MMI waveguides interconnected by at least two Mach-Zehnder waveguide structures arranged in parallel, of which each is arranged to transmit a respective portion of the intensity of said plurality of optical wavelength channels. Each Mach-Zehnder waveguide structure comprises a demultiplexing unit, a multiplexing unit and at least two waveguides arranged in parallel, wherein the demultiplexing unit is arranged for demultiplexing of said plurality of optical wavelength channels into at least two channel groups, each waveguide arranged in parallel is arranged for transmission of a respective of said channel groups to the multiplexing unit, and is further provided with a respective multichannel wavelength selective phase control unit arranged for individual phase control of at least some channels in the respective of said channel groups, which is transmitted to the multiplexing unit, and the multiplexing unit is arranged for multiplexing of said channel groups.

Abstract translation: 本发明涉及一种用于多个光波长信道的波长选择性切换的装置和方法。 该装置包括由平行布置的至少两个马赫 - 曾德尔波导结构互连的两个MMI波导，其中每个波导结构被布置成透射所述多个光波长通道的强度的相应部分。 每个马赫 - 策德尔波导结构包括解复用单元，多路复用单元和并联布置的至少两个波导，其中解复用单元布置成用于将所述多个光波长通道解复用为至少两个通道组，每个波导平行布置 布置成用于将各个所述信道组传输到复用单元，并且还设置有相应的多信道波长选择相位控制单元，其被布置用于各个所述信道组中的至少一些信道的单独相位控制，所述信道被传输 并且复用单元被布置为用于所述信道组的多路复用。

公开(公告)号：US06456754B1

公开(公告)日：2002-09-24

申请号：US09410045

申请日：1999-10-01

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B6293

CPC classification number: G02B6/12011 ,  G02B6/12019 ,  G02B6/4249 ,  H04J14/02

Abstract: The present invention relates to an arrangement and to a method for wavelength selecting transmission, said arrangement comprising two N×N MMI waveguides (10 and 20), where N≧2, 2 (N−1) number of lasers (1 and 2) and N-number of Mach-Zehnder waveguides (31, 32, 33, 34 and 35). A first N×N MMI waveguide (10) is coupled with N−1 number of lasers (1) and a free access waveguide (15) on a first side, and N-number of Mach-Zehnder waveguides (31, 32, 33, 34 and 35) of mutually different lengths on a second side. The free access waveguide (15) is coupled with a last port (a15) on the first side of the first MMI waveguide (10). A second N×N MMI waveguide (20) is coupled with said N-number of Mach-Zehnder waveguides (31, 32, 33, 34 and 35) on a second side and N−1 number of lasers 82) and a free access waveguide (21) on a first side, where N−1 number of Mach-Zehnder waveguides (31, 32, 33 and 34) include a trimming section (41, 42, 43 and 44). The free access waveguide (21) is coupled with a first port (a21) on the first side of the second MMI waveguide (20). A first to a last Mach-Zehnder waveguide (31, 32, 33, 34 and 35) are arranged between a first to a last port (b11, b12, b13, b14 and b15) on a second side of the first MMI waveguide (10) and a last to a first port (b25, b24, b23, b22 and b21) on a second side of the second MMI waveguide (20).

Abstract translation: 本发明涉及一种用于波长选择传输的装置和方法，所述装置包括两个N×N MMI波导（10和20），其中N≥2,2（N-1）个激光器（1和2）和 N编的马赫曾德尔波导（31,32,33,34和35）。 第一N×N MMI波导（10）与第一侧的N-1个激光器（1）和自由接入波导（15）耦合，并且N个马赫 - 曾德波导（31,32,33,34 和35）在第二侧上具有相互不同的长度。 自由接入波导（15）与第一MMI波导（10）的第一侧上的最后端口（a15）耦合。 第二N×N MMI波导（20）与第二侧上的N个马赫 - 曾德尔波导（31,32,33,34和35）耦合，并且N-1个激光器82）和自由接入波导 21），其中N-1个马赫曾德尔波导（31,32,33和34）包括修整部分（41,42,43和44）。 自由接入波导（21）与第二MMI波导（20）的第一侧上的第一端口（a21）耦合。 第一至最后的马赫 - 策德尔波导（31,32,33,34和35）布置在第一MMI波导的第二侧上的第一至最后端口（b11，b12，b13，b14和b15）之间 10）和在第二MMI波导（20）的第二侧上的最后到第一端口（b25，b24，b23，b22和b21）。

公开(公告)号：US06292599B1

公开(公告)日：2001-09-18

申请号：US09339168

申请日：1999-06-24

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B635

CPC classification number: G02B6/29317 ,  G02B6/12007 ,  G02B6/29353 ,  G02B6/29355 ,  G02B6/29395 ,  G02F1/3136 ,  G02F2201/307 ,  G02F2203/05 ,  H04Q11/0005 ,  H04Q2011/0022

Abstract: The invention relates to a device and a method for switching optical wavelength channels. Said optical wavelength channels are introduced into at least one access waveguide provided on a first side of a first multi-mode waveguide (10). Subsequently, the wavelength channels are transmitted through said multi-mode waveguide (10) and projected on at least two connection waveguides provided on the opposite side. Subsequently, the optical wavelength channels are transmitted through the connection waveguides. For each wavelength selective cross-connection structure (2, 4, 6, 8) the phase is changed for a reflecting wavelength of two phase control elements (C1, C2, D1, D2, E1, E2, F1, F2) arranged in a first and a second connection waveguide on a first side of said wavelength selective cross-connection structure (2, 4, 6, 8), simultaneously as at a second side of said wavelength selective cross-connection structure (2, 4, 6, 8) said reflecting wavelength phase remains relatively unchanged. For each wavelength selective cross-connection structure (2, 4, 6, 8) the phase is changed for transmitting wavelengths once in a first and a second direction per wavelength selective cross-connection structure (2, 4, 6, 8). The phase difference between the optical signal in each access waveguide provided on the first side of the second multi-mode waveguide (20) determines where the optical signal is focused on the opposite side.

Abstract translation: 本发明涉及一种用于切换光波长信道的装置和方法。 所述光波长通道被引入设置在第一多模波导（10）的第一侧上的至少一个存取波导中。 随后，波长信道通过所述多模波导（10）传输并投影在设置在相对侧上的至少两个连接波导上。 随后，光波长信道通过连接波导传输。 对于每个波长选择性交叉连接结构（2,4,6,8），相位改变为两个相位控制元件（C1，C2，D1，D2，E1，E2，F1，F2）的反射波长 在所述波长选择性交叉连接结构（2,4,6,8）的第一侧上的第一和第二连接波导，同时在所述波长选择性交叉连接结构（2,4,6,8）的第二侧 ）反射波长相位保持相对不变。 对于每个波长选择性交叉连接结构（2,4,6,8），相对于每波长选择性交叉连接结构（2,4,6,8）沿第一和第二方向一次传输波长而改变。 设置在第二多模波导（20）的第一侧上的每个存取波导中的光信号之间的相位差确定光信号在相对侧聚焦的位置。

公开(公告)号：US07330658B2

公开(公告)日：2008-02-12

申请号：US10239410

申请日：2001-03-20

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: H04J14/02

CPC classification number: G02B6/4215 ,  G02B6/29317 ,  G02B6/29353 ,  G02B6/29383 ,  G02F1/3136 ,  G02F2201/307 ,  G02F2203/055 ,  G02F2203/585 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0213 ,  H04J14/0219

Abstract: An optical add/drop multiplexing (OADM) device includes two MMI structures connected by a MI/MZI waveguide structure comprising a wavelength selector that includes phase shifted Bragg gratings. The OADM multiplexer transmits a wavelength channel selected in advance and reflects all other channels to achieve a drop functionality. Simultaneously, a further channel may be added to the multiplexer at the same side as the channel selected in advance is output. The further channel preferably is centered around the same wavelength as the channel selected in advance. The further channel is transmitted through the Bragg gratings and is superimposed with the other channels to achieve an add functionality.

Abstract translation: 光分插复用（OADM）装置包括通过MI / MZI波导结构连接的两个MMI结构，包括包括相移布拉格光栅的波长选择器。 OADM多路复用器传输预先选择的波长信道，并反映所有其他信道以实现丢弃功能。 同时，可以在输出选择的信道的同一侧向多路复用器添加另一个信道。 另外的通道优选地围绕与预先选择的通道相同的波长居中。 另外的通道通过布拉格光栅传输，并与其他通道叠加以实现添加功能。

公开(公告)号：US20050008365A1

公开(公告)日：2005-01-13

申请号：US10493978

申请日：2002-11-06

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B6/12 ,  G02B6/28 ,  G02F1/313 ,  H04J14/00

CPC classification number: G02F1/3136 ,  G02B6/12007 ,  G02B6/2813 ,  G02F2001/217 ,  G02F2203/58

Abstract: A device for multiplexing or demultiplexing M, M being an integer and greater than or equal to 2, optical signals each having a different wavelength λm. Said device comprising a multi-mode having at a first side a number, N, of accesses for connection of waveguide having a length, in light propagating direction, so that an image at the i:th, i≦N access waveguide propagating into said MMI waveguide will produce N self-images for each of said M wavelengths λm, at M positions separated in light propagation direction, at first distances lm, lm>lm+1, from said access waveguides where N is an integer greater than or equal to 2, and where each of said positions corresponds to a wavelength. The device further comprising wavelength selective reflection means arranged at each of said distances lm, wherein the m:th wavelength selective reflection means is arranged to reflect the m:th (2

Abstract translation: 用于复用或解复用M，M为大于或等于2的整数，每个具有不同波长的光信号的设备。 所述装置包括多模，其具有在第一侧具有数量的N个用于在光传播方向上具有长度的波导连接的访问​​，以使第i，i，N个存取波导上的图像传播到 所述MMI波导将在从所述接入波导的第一距离lm，lm> lm + 1处，在N是大于或等于整数的整数的第一距离lm，lm> lm + 1处，在光传播方向上分离的M个位置处，为每个所述M个波长lambdam产生N个自身图像 至2，并且其中每个所述位置对应于波长。 所述装置还包括布置在每个所述距离lm处的波长选择反射装置，其中第m波长选择反射装置被布置成反射第m（2≤m≤M）波长和M相调节装置，其中 第m相位调整装置被布置成当由所述波长选择反射装置反射时，在所选择的输出存取波导处，调整所述自身图像的相位，以产生第m波长的单个自身图像。

公开(公告)号：US06501872B2

公开(公告)日：2002-12-31

申请号：US09871726

申请日：2001-06-04

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B628

CPC classification number: H04J14/0213 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021

Abstract: An apparatus for add/drop multiplexing of a wavelength channel multiplex comprises an MMI coupler and MI arm section. The MMI coupler includes a multiplex input, an add channel input, a drop channel output, a multiplex output, and at least four input/output terminals. The MI arm section includes four waveguides, wherein each waveguide is optically connected to a respective one of said input/output terminals of the MMI coupler; and is at least provided with a first phase control element, a reflection grating, a second phase control element, and a wide frequency range reflection means. Further, each of the reflection gratings are provided with a heater means for tuning the respective reflection grating to the wavelength channel to be added/dropped and the wide frequency range reflection means reflect all other channels. The first and second phase control elements are adapted to direct the channel to be added/dropped to the multiplex output/drop channel output and to direct remaining channels to the multiplex output.

Abstract translation: 用于波分复用的分插复用的装置包括MMI耦合器和MI臂部分。 MMI耦合器包括复用输入，附加通道输入，下降通道输出，复用输出以及至少四个输入/输出端子。 MI臂部分包括四个波导，其中每个波导光学连接到MMI耦合器的所述输入/输出端子中的相应一个; 并且至少设置有第一相位控制元件，反射光栅，第二相位控制元件和宽频率范围反射装置。 此外，每个反射光栅设置有用于将各个反射光栅调谐到要添加/丢弃的波长通道的加热器装置，并且宽频率范围反射装置反映所有其它通道。 第一和第二相位控制元件适于将要添加/丢弃的信道引导到多路复用输出/输出通道输出，并将剩余通道引导至多路输出。

公开(公告)号：US06345136B1

公开(公告)日：2002-02-05

申请号：US09400486

申请日：1999-09-21

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B634

CPC classification number: G02B6/29319 ,  G02B6/29349 ,  G02B6/29353 ,  G02B6/29383 ,  G02B6/29395 ,  G02B6/34 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/028 ,  H04J14/0283 ,  H04Q11/0005 ,  H04Q2011/0022

Abstract: The present invention relates to a tuneable add/drop demultiplexer. The add/drop multiplexer includes at least one N×N MMI-waveguide (10), where N≧3, at least N-number of Michelson waveguides (31, 32, 33 and 34), at least one Bragg grating (62, 64 and 66) per Michelson waveguide (31, 32, 33 and 34) and at least one phase control element (51, 53, 55 and 57) in at least N−1 number of Michelson waveguides (31, 32, 33 and 34). The Michelson waveguides (31, 32, 33 and 34) include said phase control elements (51, 53, 55 and 57) and said Bragg gratings (62, 64 and 66) and are coupled to at least one MMI-waveguide (10). Each Michelson waveguide (31, 32, 33 and 34) can be provided with a broadband reflection section (70). The invention also relates to a method for tuneable add/drop multiplexing, the use of a wavelength selective switch as a tuneable add/drop multiplexer and the use of a tuneable add/drop multiplexer as a wavelength selective switch.

Abstract translation: 本发明涉及可调加/减多路分离器。 所述分插复用器包括至少一个N×N MMI波导（10），其中N≥3，至少N数个迈克尔逊波导（31,32,33和34），至少一个布拉格光栅（62,64 和至少N-1个迈克尔逊波导（31,32,33和34）中的至少一个相位控制元件（51,53,55和57），并且每个迈克尔逊波导（31,32,33和34） 。 迈克尔逊波导（31,32,33和34）包括所述相位控制元件（51,53,55和57）和所述布拉格光栅（62,64和66）并且耦合到至少一个MMI波导（10） 。 每个迈克尔逊波导（31,32,33和34）可以设置有宽带反射部分（70）。 本发明还涉及一种用于可调分插复用的方法，使用波长选择开关作为可调加/减多路复用器，以及使用可调加/多路复用器作为波长选择开关。

公开(公告)号：US6047096A

公开(公告)日：2000-04-04

申请号：US33092

申请日：1998-03-02

Applicant: Torsten Augustsson

Inventor： Torsten Augustsson

IPC: G02B6/12 ,  G02B6/28 ,  G02B6/34

CPC classification number: G02B6/12007 ,  G02B2006/12107 ,  G02B6/2813

Abstract: The present invention relates to an optical device that includes at least one MMI-waveguide and at least one Bragg-grating structure. At least one so-called access waveguide is disposed on a first side of the MMI-waveguide and at least one access waveguide is disposed on a second side of the MMI-waveguide, wherein the first and second sides are the short sides of the MMI-waveguide. The access waveguide has a so-called taper structure and the Bragg-grating structure is arranged in the MMI-waveguide.

Abstract translation: 本发明涉及一种包括至少一个MMI波导和至少一个布拉格光栅结构的光学装置。 至少一个所谓的接入波导设置在MMI波导的第一侧上，并且至少一个接入波导设置在MMI波导的第二侧上，其中第一和第二侧是MMI的短边 -波导。 接入波导具有所谓的锥形结构，布拉格光栅结构布置在MMI波导中。