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公开(公告)号：US5675592A
公开(公告)日：1997-10-07
申请号：US597368
申请日：1996-02-08
Applicant: Corrado Dragone , Ivan P. Kaminow
Inventor： Corrado Dragone , Ivan P. Kaminow
CPC classification number: H01S5/4062 , G02B6/12009 , G02B6/12019 , H01S5/026 , H01S5/0268 , H01S5/4087 , H01S5/50
Abstract: A monolithically integrated laser which is rapidly tunable over a wide optical frequency range comprises a frequency router formed in a semiconductive wafer defining a tuned cavity. A control circuit applies electrical energy to predetermined controllably transmissive waveguides connecting the frequency routing device with reflective elements defined in the wafer. This tunes the laser to a desired one of a plurality of optical frequencies. Application of such electrical energy creates frequency selective pathways through the wafer able to support selected lasing frequencies. This laser is economical to construct and is useful in high capacity, high speed optical communications networks.
Abstract translation: 在宽光学频率范围内可快速调谐的单片集成激光器包括形成在限定调谐腔的半导体晶片中的频率路由器。 控制电路将电能施加到将频率路由设备与在晶片中定义的反射元件连接的预定的可控制的透射波导。 这将激光调谐到多个光频中所需的一个。 这种电能的应用产生通过能够支持选定的激光频率的晶片的频率选择性通路。 该激光器是经济的构造，并且在高容量，高速光通信网络中是有用的。
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公开(公告)号：US5373517A
公开(公告)日：1994-12-13
申请号：US19952
申请日：1993-02-19
Applicant: Corrado Dragone , Ivan P. Kaminow
Inventor： Corrado Dragone , Ivan P. Kaminow
IPC: H01S3/082 , H01S3/05 , H01S3/10 , H01S5/00 , H01S5/026 , H01S5/06 , H01S5/0625 , H01S5/10 , H01S5/40 , H01S5/50 , H04Q11/00
CPC classification number: H04Q11/0003 , H01S5/026 , H01S5/0268 , H01S5/10 , H01S5/4031 , H01S5/4087 , H01S5/50
Abstract: A monolithically integrated laser which is rapidly tunable over a wide optical frequency range comprises a frequency router formed in a semiconductive wafer defining a tuned cavity. A control circuit applies electrical energy to predetermined controllably transmissive waveguides connecting the frequency routing device with reflective elements defined in the wafer. This tunes the laser to a desired one of a plurality of optical frequencies. Application of such electrical energy creates frequency selective pathways through the wafer able to support selected lasing frequencies. This laser is economical to construct and is useful in high capacity, high speed optical communications networks.
Abstract translation: 在宽光学频率范围内可快速调谐的单片集成激光器包括形成在限定调谐腔的半导体晶片中的频率路由器。 控制电路将电能施加到将频率路由设备与在晶片中定义的反射元件连接的预定的可控制的透射波导。 这将激光调谐到多个光频中所需的一个。 这种电能的应用产生通过能够支持选定的激光频率的晶片的频率选择性通路。 该激光器是经济的构造，并且在高容量，高速光通信网络中是有用的。
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公开(公告)号：US5425116A
公开(公告)日：1995-06-13
申请号：US152511
申请日：1993-11-16
Applicant: Corrado Dragone , Ivan P. Kaminow , Mark E. Kuznetsov
Inventor： Corrado Dragone , Ivan P. Kaminow , Mark E. Kuznetsov
CPC classification number: G02B6/12033 , G02F1/011 , G02F1/313 , G02F2001/0152
Abstract: 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 0
Abstract translation: 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0
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4.发明授权
公开(公告)号：US5235658A
公开(公告)日：1993-08-10
申请号：US860477
申请日：1992-03-30
Applicant: Corrado Dragone , Herman M. Presby
Inventor： Corrado Dragone , Herman M. Presby
IPC: G02B6/30
CPC classification number: G02B6/30
Abstract: This invention is directed toward joining an optical fiber to a waveguide on a silicon or silica substrate. In a preferred embodiment, a discontinuity such as a notch is provided in the substrate along each side of a waveguide. The notches, which extend back from the end of each waveguide form air gaps between the ends of adjacent waveguides. Now, when an optical fiber is butt coupled to a waveguide on a substrate with adhesive, the notches at either side of the waveguides prevent adhesive from flowing along the edge of the substrate and onto the end of an adjacent waveguide. In addition, the adhesive flows around and encapsulates the substrate projections defined by the notches along the ends of the waveguide to provide a sturdy butt connection.
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公开(公告)号：US4482897A
公开(公告)日：1984-11-13
申请号：US392607
申请日：1982-06-28
Applicant: Corrado Dragone , Michael J. Gans
Inventor： Corrado Dragone , Michael J. Gans
Abstract: The present invention relates to antennas with a segmented reflecting surface for providing fully or partially overlapping beams from separate feeds associated with each segment without incurring cross-coupling between feeds and power loss. More particularly, a main reflector or a subreflector reflecting surface is segmented to provide separate images of the far field area of the antenna on separate focal surfaces in the vicinity of an original focal surface of a corresponding non-segmented antenna. Feeds disposed at essentially corresponding locations on each of the far field area images produced by each of the segments provide separate beam footprints which overlap each other in the far field area by a predetermined amount.
Abstract translation: 本发明涉及具有分段反射表面的天线，用于提供完全或部分重叠的波束，来自与每个分段相关联的分离进料，而不会引起进料和功率损耗之间的交叉耦合。 更具体地，主反射器或副反射器反射表面被分割以在相应的非分段天线的原始焦点表面附近的分离的焦点表面上提供天线的远场区域的分离图像。 设置在由每个段产生的每个远场区域图像上的基本对应位置处的馈送提供在远场区域中彼此重叠预定量的单独的射束覆盖区。
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Patent Agency Ranking
公开(公告)号：US4439748A
公开(公告)日：1984-03-27
申请号：US392613
申请日：1982-06-28
Applicant: Corrado Dragone
Inventor： Corrado Dragone
CPC classification number: H01Q13/0291 , H01P11/002 , H01P3/123 , Y10T29/49016
Abstract: The present invention relates to a rectangular corrugated waveguide or feedhorn wherein a plurality of adjacent grooves of a predetermined depth and cross-section are formed, preferably by numerical machining, in a major exposed surface of each of four plates of an electrically conductive material. The four plates are then secured together to form a rectangular corrugated passage therebetween where the ends of the line of grooves in one plate substantially meet and are aligned with the ends of corresponding grooves in another plate to form a solid line of electrically conductive material at the corners of the passage.
Abstract translation: 本发明涉及一种矩形波纹波导或馈电喇叭，其中在导电材料的四个板的每一个的主要暴露表面中，优选地通过数字加工形成预定深度和横截面的多个相邻槽。 然后将四个板固定在一起形成矩形波纹通道，其中一个板中的槽线的端部基本上相遇并且与另一个板中的相应槽的端部对准，以在其中形成导电材料的实线 通道的角落。
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公开(公告)号：US20070098322A1
公开(公告)日：2007-05-03
申请号：US11590403
申请日：2006-10-31
Applicant: Corrado Dragone
Inventor： Corrado Dragone
CPC classification number: G02B6/12021
Abstract: A planar optical filter consisting of two stages performing stationary imaging between an input waveguide and a set of output waveguides is characterized by reduced crosstalk and minimal loss variation in each passband. The input stage is a small waveguide grating router, connected to the output stage by a waveguide lens essentially covering the entire central zone of the input router. In one embodiment, the second stage includes two waveguide grating routers and the lens has two separate output apertures, respectively connected to these two routers. In this arrangement, 2N input channels applied to the input port are separated by the first grating into two interleaved sets of N channels each. The two sets are respectively transferred by the composite waveguide lens to the two output gratings which respectively separate the N channels of each set. In another embodiment, the output router only includes one output grating, and several stationary images are produced, at the same waveguide location, by different orders of the output grating.
Abstract translation: 在输入波导和一组输出波导之间执行静止成像的两个阶段的平面光学滤波器的特征在于减少了串扰并且在每个通带中具有最小的损耗变化。 输入级是一个小波导光栅路由器，通过基本上覆盖输入路由器整个中心区的波导透镜连接到输出级。 在一个实施例中，第二级包括两个波导光栅路由器，并且透镜具有分别连接到这两个路由器的两个独立的输出孔径。 在这种布置中，施加到输入端口的2N个输入通道被第一光栅分隔成两个N个通道的交错组。 这两组分别由复合波导透镜传送到分别分离每组N个通道的两个输出光栅。 在另一个实施例中，输出路由器仅包括一个输出光栅，并且在相同波导位置处通过输出光栅的不同阶数产生几个静止图像。
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公开(公告)号：US5926587A
公开(公告)日：1999-07-20
申请号：US925515
申请日：1997-09-08
Applicant: Jerry Chia-yung Chen , Corrado Dragone
Inventor： Jerry Chia-yung Chen , Corrado Dragone
CPC classification number: G02B6/12021
Abstract: Two or more wavelength routers are cascaded together to form a passband filter with low levels of crosstalk between different channels of a wavelength division multiplexing (WDM) stream. Cascading wavelength routers is a technique that can be used to efficiently realize wide and flat passbands, but high levels of cross-talk may result from multi-path interference caused by grating lobes, which produce unwanted transmission paths between the two routers. Spatial filtering can be applied to inhibit the propagation of light-energy along the unwanted paths, and it can be implemented using any suitable techniques including pinholes, reflectors, waveguides, and multi-mode interferometers (MMIs). The resulting passband filter can be designed to generate levels of crosstalk similar to those of conventional passband filters that rely on a single waveguide router.
Abstract translation: 两个或多个波长路由器级联在一起以形成波分复用（WDM）流的不同信道之间具有低水平串扰的通带滤波器。 级联波长路由器是一种可用于有效实现宽而平坦的通带的技术，但高级别的串扰可能是由于两个路由器之间产生不必要的传输路径的光栅引起的多径干扰。 可以应用空间滤波来抑制沿着不需要的路径的光能的传播，并且可以使用包括针孔，反射器，波导和多模干涉仪（MMI）的任何合适的技术来实现空间滤波。 所得到的通带滤波器可被设计成产生与依赖于单个波导路由器的传统通带滤波器类似的串扰水平。
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9.发明授权Frequency routing device having a spatially filtered optical grating for providing an increased passband width 失效具有用于提供增加的通带宽度的经空间滤波的光栅的频率路由设备
公开(公告)号：US5467418A
公开(公告)日：1995-11-14
申请号：US300005
申请日：1994-09-02
Applicant: Corrado Dragone
Inventor： Corrado Dragone
CPC classification number: G02B6/12011
Abstract: An optical appliance 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 he second plurality of waveguides. At least one output waveguide is connected to the second fee 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.
Abstract translation: 光学器具包括至少一个输入波导和连接到输入波导的第一自由空间区域。 第一多个波导连接到第一自由空间区域。 连接到第一多个波导的光栅包括被分成至少三个波导组的多个不等长的波导。 属于同一组的相邻波导在它们之间具有基本上恒定的路径长度差异，而属于不同波导组的相邻波导在它们之间具有不同于恒定路径长度差的路径长度差异一半的奇整数倍 预选的波长。 第二多个波导连接到光栅，第二自由空间区域连接到第二多个波导。 至少一个输出波导连接到第二费用空间区域。 作为这种布置的结果，该光学装置具有通过为给定的串扰电平提供相对较宽的通带和相对窄的信道间隔而使频谱效率最大化。
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公开(公告)号：US5450511A
公开(公告)日：1995-09-12
申请号：US279982
申请日：1994-07-25
Applicant: Corrado Dragone
Inventor： Corrado Dragone
CPC classification number: G02B6/12011 , G02B6/12019
Abstract: The efficiency and freedom from cross-talk achieved by transmissive multiplexer/demultiplexer devices is achieved in a reflective multiplexer/demultiplexer device. The reflective geometry avoids the large size devices necessitated by transmissive geometries handling a large number of optical channels. The reflective geometry also avoids long bends in waveguides used in optical gratings in high efficiency transmissive geometries. Integrated optical multiplexers/demultiplexers in accordance with this invention comprise a plurality of waveguides for carrying unmultiplexed optical signals interleaved with a plurality of waveguides for carrying multiplexed optical signals. The two pluralities of waveguides are connected to the boundary of a free space region. The pluralities of waveguides communicate through the free space region with an optical grating comprising a plurality of waveguides each terminated in a reflective element. The length of each waveguide in the grating differs from the lengths of adjacent waveguides in the grating by a predetermined amount to introduce predetermined path length differences for the optical signals traveling in the waveguides of the grating. Unmultiplexed optical signals, introduced into one or more of the input waveguides for carrying unmultiplexed optical signals, travel through those waveguides into the optical grating and are reflected towards one or more of the output waveguides for carrying multiplexed optical signals. When the device is used as a multiplexer in this fashion, it causes the optical signals introduced into the device to be multiplexed together and appear in a predetermined one or more of the waveguides for carrying multiplexed signals. Multiplexed optical signals introduced into one or more of the waveguides for carrying multiplexed signals are directed through the free space region to the optical grating and are reflected toward one or more of the output waveguides for carrying unmultiplexed optical signals. When the device is used as a demultiplexer in this manner, input signals which comprise a mixture of optical frequencies are demultiplexed so that the individual optical frequencies are separated from one another and appear at one or more predetermined waveguides for carrying unmultiplexed optical signals.
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