公开(公告)号：EP0430516B1

公开(公告)日：1997-08-20

申请号：EP90312521.9

申请日：1990-11-16

申请人： AT&T Corp.

发明人： Dragone, Corrado

IPC分类号： H01Q21/06 ,  H01Q25/04

CPC分类号： H01Q25/04 ,  H01Q21/064

公开(公告)号：EP0565308A1

公开(公告)日：1993-10-13

申请号：EP93302591.8

申请日：1993-04-01

申请人： AT&T Corp.

发明人： Adar, Renen ,  Dragone, Corrado ,  Henry, Charles Howard

IPC分类号： G02B6/12 ,  G02B6/34

CPC分类号： G02B6/12011 ,  G02B6/1245 ,  G02B6/2804

摘要： An integrated optic device useful as a planar lens or a low order array multiplexer comprises a pair of optical couplers (21, 22) and an array of plural waveguides extending between the couplers in an "S" configuration to provide closely spaced optical path lengths. An "S" configuration provides equal path lengths for an optical lens. Incremental lengths (30) added to the "S" in the region between curve reversal can provide small path length increments for a low order array multiplexer or demultiplexer.

摘要翻译： 可用作平面透镜或低阶阵列多路复用器的集成光学器件包括一对光耦合器（21,22）以及以“S”构型在耦合器之间延伸的多个波导阵列，以提供紧密间隔的光路长度。 “S”配置为光学透镜提供相等的路径长度。 在曲线反转之间的区域中添加到“S”的增量长度（30）可以为低阶阵列多路复用器或解复用器提供小的路径长度增量。

公开(公告)号：EP0558227A1

公开(公告)日：1993-09-01

申请号：EP93301119.9

申请日：1993-02-17

申请人： AT&T Corp.

发明人： Dragone, Corrado ,  Presby, Herman Melvin

IPC分类号： G02B6/30

CPC分类号： G02B6/30 ,  G02B6/2551

摘要： This invention is directed toward joining, with glass, a waveguide (34) supported by a substrate (26) to an optical fiber (40). In a preferred embodiment, a glass material which melts at a temperature that is lower than the temperature to which the waveguide can be safely heated is applied to either the optical fiber (40) and/or the waveguide (34). The glass material is then heated to cause it to connect the optical fiber to the waveguide. A feature of the invention is the presence of heat breaking slots (38) in the substrate (26) upon which the waveguide resides to thermally isolate the end of each waveguide and the underlying substrate from adjacent waveguides and the portions of the substrate which underlie said adjacent waveguides. The heat breaks restrict heat from being conducted along the end of the substrate from one waveguide region to adjacent waveguide regions when heat is being applied to make a connection.

摘要翻译： 本发明涉及通过玻璃将由衬底（26）支撑的波导（34）连接到光纤（40）。 在优选实施例中，在低于波导可以被安全加热的温度的温度下熔化的玻璃材料被施加到光纤（40）和/或波导（34）上。 然后将玻璃材料加热以使其将光纤连接到波导。 本发明的一个特征是在衬底（26）中存在散热槽（38），波导位于其上以使每个波导的端部和下面的衬底与相邻波导和基底的位于所述 相邻波导。 当施加热量以进行连接时，热断裂限制了从衬底端部从一个波导区域传导到相邻波导区域的热量。

公开(公告)号：EP0528652A1

公开(公告)日：1993-02-24

申请号：EP92307434.8

申请日：1992-08-13

申请人： AT&T Corp.

发明人： Dragone, Corrado

IPC分类号： G02B6/34 ,  G02B6/28

CPC分类号： G02B6/12011 ,  G02B6/124

摘要： An N x N integrated optical interconnection apparatus capable of switching, multiplexing, or demultiplexing a large number of input and output wavelength channels achieves low levels of crosstalk and insertion loss. Two substantially identical N x M star couplers (10,12) are connected by an optical diffraction grating comprising M unequal length waveguides spaced from one another by predetermined amounts. Each coupler comprises a dielectric slab (18,24) defining a free space region between two periodic arrays of waveguides (16,20,22,26), each radially directed toward a virtual focal point (F₁,F₂,F₃,F₄). The arrays are configured so that their respective foci are located at a predetermined distance away from and outside the free space region to minimize phase errors caused by mutual coupling between adjacent waveguides. Specifically, the focal point of each array connected to each star coupler may be located so that it coincides with the phase center of the other array connected to each coupler. Residual phase errors may be reduced by appropriately setting the lengths of the waveguides in the optical grating between the two star couplers. The length difference between any two adjacent waveguides in the grating is not constant throughout the grating.

摘要翻译： 能够切换，复用或解复用大量输入和输出波长信道的N×N集成光互连装置实现了低水平的串扰和插入损耗。 两个基本上相同的N×M星形耦合器（10,12）通过光学衍射光栅连接，所述光学衍射光栅包括M个不相等长度的波导，彼此间隔开预定量。 每个耦合器包括限定两个周期性波导阵列（16,20,22,26）之间的自由空间区域的介电板（18,24），每个波导阵列径向指向虚拟焦点（F1，F2，F3，F4）。 阵列被配置为使得它们各自的焦点位于距离自由空间区域和外部的预定距离处，以最小化由相邻波导之间的相互耦合引起的相位误差。 具体来说，连接到每个星形耦合器的每个阵列的焦点可以被定位成使得它与连接到每个耦合器的另一阵列的相位中心一致。 可以通过适当地设置两个星形耦合器之间的光栅中的波导的长度来减小残余相位误差。 光栅中任何两个相邻波导之间的长度差在整个光栅中不是恒定的。

公开(公告)号：EP0430516A3

公开(公告)日：1991-12-18

申请号：EP90312521.9

申请日：1990-11-16

申请人： AT&T Corp.

发明人： Dragone, Corrado

IPC分类号： H01Q21/06 ,  H01Q25/04

CPC分类号： H01Q25/04 ,  H01Q21/064

摘要： A waveguide array comprising a plurality of waveguides which are each outwardly tapered at the aperture of the my in accordance with a predetermined criteria chosen to increase waveguide efficiency. Thc tapering serves to gradually transform a fundamental Bloch mode, propagating through the waveguide array, into a plane wave in a predetermined direction, and then to launch the plane wave into free space in the predetermined direction. In another embodiment, the waveguides are positioned relative to one another in order to satisfy the predetermined criteria.

公开(公告)号：EP0558227B1

公开(公告)日：1999-04-28

申请号：EP93301119.9

申请日：1993-02-17

申请人： AT&T Corp.

发明人： Dragone, Corrado ,  Presby, Herman Melvin

IPC分类号： G02B6/30

CPC分类号： G02B6/30 ,  G02B6/2551

公开(公告)号：EP0564128B1

公开(公告)日：1997-11-05

申请号：EP93302068.7

申请日：1993-03-18

申请人： AT&T Corp.

发明人： Dragone, Corrado ,  Presby, Herman Melvin

IPC分类号： G02B6/30 ,  G02B6/42

CPC分类号： G02B6/30

公开(公告)号：EP0699928A1

公开(公告)日：1996-03-06

申请号：EP95305913.6

申请日：1995-08-23

申请人： AT&T Corp.

发明人： Dragone, Corrado

IPC分类号： G02B6/34

CPC分类号： G02B6/12011

摘要： An arrayed optical waveguide grating includes at least one input waveguide and a first free space region connected to the input waveguide. A first plurality of waveguides is connected to the first free space region. An optical grating, which is connected to the first plurality of waveguides, includes a plurality of unequal length waveguides that are divided into at least three waveguide groups. Adjacent waveguides that belong to the same group have a substantially constant path length difference between them while adjacent waveguides belonging to different groups of waveguides have a path length difference between them that differs from the constant path length difference by an odd integer multiple of one-half a preselected wavelength.
A second plurality of waveguides is connected to the optical grating and a second free space region is connected to the second plurality of waveguides. At least one output waveguide is connected to the second free space region. As a result of this arrangement, this optical apparatus has a spectral efficiency which is maximized by providing a relatively wide passband and a relatively narrow channel spacing for a given crosstalk level.

公开(公告)号：EP0653659A1

公开(公告)日：1995-05-17

申请号：EP94308246.1

申请日：1994-11-09

申请人： AT&T Corp.

发明人： Dragone, Corrado ,  Kaminow, Ivan P. ,  Kuznetsov, Mark Edward

IPC分类号： G02F1/01 ,  G02B6/34

CPC分类号： G02B6/12033 ,  G02F1/011 ,  G02F1/313 ,  G02F2001/0152

摘要： A tunable waveguide grating includes a plurality of N waveguides which define N optically transmissive pathways. A plurality of (N-1) electrodes are arranged in the pathways such that the kth pathway contains (k-1) electrodes, where O

摘要翻译： 可调波导光栅包括限定N个光学透射路径的多个N个波导。 在路径中布置多个（N-1）个电极，使得第k个路径包含（k-1）个电极，其中O

公开(公告)号：EP0444817A3

公开(公告)日：1992-07-01

申请号：EP91301345.4

申请日：1991-02-20

申请人： AT&T Corp.

发明人： Dragone, Corrado

IPC分类号： G02B6/34 ,  H04J14/02

CPC分类号： G02B6/12011 ,  G02B6/12016 ,  G02B6/2804

摘要： This invention is an optical Multiplexer/Demultiplexer, built from a plurality of optical waveguides (106-108, 101-105). Each waveguide (101-105) differs in length from its neighboring waveguide by a predetermined amount. The waveguides are strongly coupled to one another at their respective ends, and substantially uncoupled therebetween, allowing for high efficiency. As the wave propagates along the tapered region of the waveguides of waveguide array (115), it is gradually transformed into five separate uncoupled waves, with such tranformation causing near zero higher order mode generation. Each of the five uncoupled waves will then propagate along its respective waveguide until reaching waveguide array (113). At waveguide array (113), the five waves are gradually coupled back into a single propagating wavefront, which emanates toward waveguide array (114). Since l is an integer multiple of λ₀, the constant phase difference φ between adjacent waveguides is preserved. Thus the wave emanating from each of the waveguides of waveguide array (113) is phase shifted by φ from the wave emanating from its neighboring waveguide. The five waves will combine to produce a single wavefront which propagates in a direction that corresponds exactly to the direction along waveguide array (112) from which the wave was launched. More particularly, a wave launched from waveguide (106) will be directed by waveguide array (113) toward waveguide (109), since waveguides (106) and (109) are disposed in corresponding positions of their respective waveguide arrays (112) and (114). Similarly, waves which are launched from waveguides (107) or (108), will be directed by waveguide array (113) at waveguides (110) and (111), respectively. This is due to the fact that waveguides (107) and (110) are located in corresponding positions of their respective waveguide arrays (112) and (114), as are waveguides (108) and (111).