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1. 发明授权

US07035500B2 Multi-mode interference waveguide based switch 失效
标题翻译：基于多模干涉波导的开关
公开(公告)号：US07035500B2
公开(公告)日：2006-04-25
申请号：US10490840
申请日：2002-09-27
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02F1/313 , G02B6/2813 , G02B6/3516 , G02B6/3546 , G02B6/356 , G02B6/3576 , G02F2001/217
摘要： 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.
摘要翻译：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。

2. 发明授权

US06222960B1 Optical element using multimode interference 有权
标题翻译：光元件采用多模干扰
公开(公告)号：US06222960B1
公开(公告)日：2001-04-24
申请号：US09157625
申请日：1998-09-21
申请人： Leif Stensland , Georges Borak , Torsten Augustsson , Mats Granberg
发明人： Leif Stensland , Georges Borak , Torsten Augustsson , Mats Granberg
IPC分类号： G02B614
CPC分类号： G02B6/2813 , G02B6/02
摘要： 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.
摘要翻译：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。

3. 发明授权

US06574391B2 Apparatus and method for wavelength selective switching 有权
标题翻译：用于波长选择性切换的装置和方法
公开(公告)号：US06574391B2
公开(公告)日：2003-06-03
申请号：US09846305
申请日：2001-05-02
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： G02B628
CPC分类号： H04J14/0213 , G02F1/225 , G02F1/3136 , G02F2001/212 , G02F2201/307 , H04J14/0209 , H04J14/0212 , H04J14/0216 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0022 , H04Q2011/0032
摘要： 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.
摘要翻译：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。

4. 发明授权

US06456754B1 WDM transmitter and receiver 有权
标题翻译： WDM发射机和接收机
公开(公告)号：US06456754B1
公开(公告)日：2002-09-24
申请号：US09410045
申请日：1999-10-01
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： G02B6293
CPC分类号： G02B6/12011 , G02B6/12019 , G02B6/4249 , H04J14/02
摘要： 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).
摘要翻译：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）。

5. 发明授权

US06292599B1 Wavelength selective switching element 有权
标题翻译：波长选择开关元件
公开(公告)号：US06292599B1
公开(公告)日：2001-09-18
申请号：US09339168
申请日：1999-06-24
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： G02B635
CPC分类号： G02B6/29317 , G02B6/12007 , G02B6/29353 , G02B6/29355 , G02B6/29395 , G02F1/3136 , G02F2201/307 , G02F2203/05 , H04Q11/0005 , H04Q2011/0022
摘要： 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.
摘要翻译：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。

6. 发明授权

US07349628B2 MMI based device 有权
标题翻译：基于MMI的设备
公开(公告)号：US07349628B2
公开(公告)日：2008-03-25
申请号：US10493978
申请日：2002-11-06
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： H04J14/00 , G02B6/26 , G02B6/34
CPC分类号： G02F1/3136 , G02B6/12007 , G02B6/2813 , G02F2001/217 , G02F2203/58
摘要： A device and method for multiplexing or demultiplexing M optical signals, each having a different wavelength λm. An MMI waveguide has a length such that each optical signal that propagates into the MMI waveguide at an i:th access waveguide, where i≦N, and N is greater than or equal to 2, produces N self-images inside the MMI waveguide at a respective distance Im from the access waveguides. Each of M wavelength selective reflectors is arranged near a respective distance Im, wherein the m:th reflector reflects the optical signal carried by the m:th wavelength, where 2≦m≦M, while being substantially transparent to all other wavelengths. Each of M phase adjustors is arranged relative to a corresponding reflector, wherein the m:th phase adjustor adjusts the phase of the self-images of the optical signal carried by the m:th wavelength to create a single self-image at a selected output access waveguide when reflected by the m:th reflector.
摘要翻译：一种用于复用或解复用M个光信号的装置和方法，每个具有不同波长λm的光信号。 MMI波导具有这样的长度，使得在第i个接入波导处传播到MMI波导中的每个光信号，其中i≤N且N大于或等于2，在MMI波导内部产生N个自身图像在距离接入波导的距离I m m处。 M个波长选择反射器中的每一个布置在相应的距离I m m附近，其中第m个反射器反射由第m个波长承载的光信号，其中2 <= m <= M，而对所有其它波长基本上是透明的。 M相调节器中的每一个相对于相应的反射器布置，其中第m相位调节器调整由第m波长承载的光信号的自身图像的相位，以在选定的输出处产生单个自身图像存取波导由第m反射器反射时。

7. 发明授权

US06452718B1 WDM-channel equalizer 失效
标题翻译： WDM通道均衡器
公开(公告)号：US06452718B1
公开(公告)日：2002-09-17
申请号：US09410046
申请日：1999-10-01
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： H01S300
CPC分类号： H04B10/2941 , H04B2210/258 , H04J14/0221
摘要： The present invention relates to an arrangement and a method relating to optical channel equalizers. The channel equalizer includes at least one Q-port direction-dependent router (40), where Q≧3, one N-channel WDM (de)multiplexer (30), where N≧2, N-number of amplifying waveguides (31, 32, 33, 34, 35, 36, 37 and 38), at least N-number of fiber amplifiers (51, 52, 53, 54, 55, 56, 57 and 58), at least N-number of Bragg gratings (61, 62, 63, 64, 65, 66, 67 and 68), at least N-number of variable optical pump laser attenuators (71, 72, 73, 74, 75, 76, 77 and 78), at least one optical splitter (20 and 22) and at least one pump laser (10, 12, 14 and 16) per optical splitter (20 and 22). At least one of the ports (42, 44 and 46) on the direction-dependent router (40) is disposed on a first side of the WDM (de)multiplexer (30). Each amplifying waveguide (31, 32, 33, 34, 35, 36, 37 and 38) includes at least one fiber amplifier (51, 52, 53, 54, 55, 56, 57 and 58) and at least one Bragg grating (61, 62, 63, 64, 65, 66, 67 and 68). At least one fiber amplifier (51, 52, 53, 54, 55, 56, 57 and 58) is disposed between a Bragg grating (61, 62, 63, 64, 65, 66, 67 and 68) and the WDM (de)multiplexer (30). At least one variable optical pump laser attenuator (71, 72, 73, 74, 75, 76, 77 and 78) is disposed between each last Bragg grating (61, 62, 63, 64, 65, 66, 67 and 68) and a first side of said optical splitter (20 and 22). The pump laser (10, 12, 14 and 16) is disposed on a second side of the optical splitter (20 and 22).
摘要翻译：本发明涉及一种与光信道均衡器相关的装置和方法。信道均衡器包括至少一个Q端口方向依赖路由器（40），其中Q> = 3，一个N信道WDM（de）多路复用器（30），其中N≥2，N个放大波导（ 31,32,33,34,35,36,37和38），至少N个光纤放大器（51,52,53,54,55,56,57和58）至少N个布拉格光栅（61,62,63,64,65,66,67和68）至少N个可变光泵激光衰减器（71,72,73,74,75,76,77和78）至少一个光分路器（20和22）和每个光分路器（20和22）的至少一个泵浦激光器（10,12,14和16）。方向依赖路由器（40）上的至少一个端口（42,44和46）设置在WDM（de）多路复用器（30）的第一侧上。每个放大波导（31,32,33,34,35,36,37和38）包括至少一个光纤放大器（51,52,53,54,55,56,57和58）和至少一个布拉格光栅（ 61,62,63,64,65,66,67和68）。至少一个光纤放大器（51,52,53,54,55,56,57和58）设置在布拉格光栅（61,62,63,64,65,66,67和68）和WDM（de ）多路复用器（30）。至少一个可变光泵激光衰减器（71,72,73,74,75,76,77和78）设置在每个最后的布拉格光栅（61,62,63,64,65,66,67和68）之间和所述光分路器（20和22）的第一侧。泵浦激光器（10,12,14和16）设置在光分路器（20和22）的第二侧上。

8. 发明授权

US06295397B1 Wavelength selective modulator 有权
标题翻译：波长选择调制器
公开(公告)号：US06295397B1
公开(公告)日：2001-09-25
申请号：US09506831
申请日：2000-02-18
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： G02B628
CPC分类号： G02B6/29317 , G02B6/12007 , G02B6/2813 , G02B6/29355 , G02B6/29395 , G02B2006/12107 , G02B2006/12142 , G02F1/3136 , G02F2001/217
摘要： The present invention relates to a device and to a method for modulating optical wavelength channels. The optical wavelength channels are switched to at least one access waveguide arranged on a first side of a first multimode waveguide (10). The wavelength channels are then transmitted through the multimode waveguide (10) and imaged on at least two connecting waveguides provided on an opposite side. The optical wavelength channels are then transmitted through the connecting waveguides. For each wavelength selective cross-switch structure (2, 4, 6, 8), the phase of a reflected wavelength is changed by two phase control elements (C1, C2, D1, D2, E1, E2, F1, F2) arranged in a first and a second connecting waveguide on a first side of said wavelength selective cross-switch structure (2, 4, 6, 8) over a given time period and slightly time shifted in relation to the second phase control element, at the same time as the phase of the reflecting wavelength remains relatively unchanged on a second side of said wavelength selective cross-switch structure (2, 4, 6, 8). For each wavelength selective cross-switch structure (2, 4, 6, 8), the phase of transmitting wavelengths is changed once in a first and a second direction per wavelength selective cross-switch structure (2, 4, 6, 8). The phase relationship between the optical signal in respective access waveguides arranged on the first side of the second multimode waveguide (20) determines where the optical signal will be focused on the opposite side.
摘要翻译：本发明涉及一种用于调制光波长信道的装置和方法。光波长通道切换到布置在第一多模波导（10）的第一侧上的至少一个接入波导。然后，波长通道通过多模波导（10）传输并在设置在相对侧的至少两个连接波导上成像。光波长通道然后通过连接波导传输。对于每个波长选择性交叉开关结构（2,4,6,8），反射波长的相位由布置在其中的两个相位控制元件（C1，C2，D1，D2，E1，E2，F1，F2）改变在所述波长选择性交叉开关结构（2,4,6,8）的第一侧上的给定时间段上的第一和第二连接波导，同时相对于第二相位控制元件稍微偏移因为反射波长的相位在所述波长选择性交叉开关结构（2,4,6,8）的第二侧保持相对不变。对于每个波长选择性交叉开关结构（2,4,6,8），发射波长的相位在第一和第二方向上每波长选择性交叉开关结构（2,4,6,8）改变一次。布置在第二多模波导（20）的第一侧上的各个接入波导中的光信号之间的相位关系确定光信号将聚焦在相对侧的位置。

9. 发明授权

US07330658B2 Device and method for optical add/drop multiplexing 有权
标题翻译：用于光分插复用的设备和方法
公开(公告)号：US07330658B2
公开(公告)日：2008-02-12
申请号：US10239410
申请日：2001-03-20
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： H04J14/02
CPC分类号： 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
摘要： 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.
摘要翻译：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。

10. 发明申请

US20050008365A1 Mmi based device 有权
标题翻译：基于Mmi的设备
公开(公告)号：US20050008365A1
公开(公告)日：2005-01-13
申请号：US10493978
申请日：2002-11-06
申请人： Torsten Augustsson
发明人： Torsten Augustsson
IPC分类号： G02B6/12 , G02B6/28 , G02F1/313 , H04J14/00
CPC分类号： G02F1/3136 , G02B6/12007 , G02B6/2813 , G02F2001/217 , G02F2203/58
摘要： 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
摘要翻译：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。

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