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1. 发明授权

US07120364B2 Optical modulator and method for polarization bit interleaving 有权
公开(公告)号：US07120364B2
公开(公告)日：2006-10-10
申请号：US09898379
申请日：2001-07-05
申请人： George Kovar , Edmond J. Murphy , Richard Habel , Jozef Finak
发明人： George Kovar , Edmond J. Murphy , Richard Habel , Jozef Finak
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/532 , H04B10/541 , H04J14/06 , H04J14/08
摘要： The invention relates to optical communications using techniques for providing efficient high speed polarization bit interleaving. One common architecture for high-speed time-division-multiplexing employs two modulators having a same bit rate, wherein two separately modulated streams of data bits are combined into a high-speed single serial stream of data bits, instead of providing a single higher-cost higher-speed modulator. The present invention has found with the availability of fast data modulators, that polarization bit interleaving can be employed more efficiently for higher speed data transmission in optical network systems by providing an optical modulator including a single data modulator, rather than multiplexing different data streams from different modulators. The present invention provides an optical modulator for encoding data on orthogonally polarized alternate light pulses comprising: means for modifying a laser light beam to a pulse train at a first frequency; a data modulator for encoding signal data on the pulse train at a second data stream frequency where the second frequency is greater than or equal to the first frequency; means for rotating a polarization state of at least alternate light pulses of the pulse train to provide a data stream of orthogonally polarized alternate light pulses.

2. 发明授权

US4554050A Etching of titanium 失效
标题翻译：蚀刻钛
公开(公告)号：US4554050A
公开(公告)日：1985-11-19
申请号：US631298
申请日：1984-07-16
申请人： William J. Minford , Edmond J. Murphy , Trudie C. Rice
发明人： William J. Minford , Edmond J. Murphy , Trudie C. Rice
IPC分类号： C23F1/38 , C23F1/02 , B44C1/22 , C03C15/00 , C03C25/06
CPC分类号： C23F1/38
摘要： The specification describes a technique for etching titanium using EDTA compounds. It is especially useful for selective etch processes such as those used to form titanium diffused waveguides in lithium niobate crystals.
摘要翻译：本说明书描述了使用EDTA化合物蚀刻钛的技术。对于诸如用于在铌酸锂晶体中形成钛扩散波导的选择性蚀刻工艺尤其有用。

3. 发明授权

US5375180A Process tolerant reverse delta-beta directional coupler switch and method of fabricating same 失效
标题翻译：过程容差反向δ-β定向耦合器开关及其制造方法
公开(公告)号：US5375180A
公开(公告)日：1994-12-20
申请号：US131503
申请日：1993-10-04
申请人： Edmond J. Murphy
发明人： Edmond J. Murphy
IPC分类号： G02F1/225 , G02F1/313 , G02B6/12 , H01L21/70
CPC分类号： G02F1/3132 , G02F1/225 , G02F2201/125
摘要： A three or more section reverse .DELTA..beta. directional coupler designed to operate at a number of coupling lengths (L/l) selected from a region of a corresponding switching diagram where the cross and bar state switching curves are approximately parallel to each other and to the vertical axis, the vertical axis defining numbers of coupling lengths, or from a region of corresponding process sensitivity plots for the cross and bar states where the cross and bar state voltage curves are both approximately of zero slope. A number of these directional couplers form an optical switching array and a number of arrays form a system or network for switching optical signals each of which are capable of operation with uniform cross and bar state voltages at low crosstalk levels.
摘要翻译：三个或更多个部分反向DELTA beta定向耦合器被设计成以从交叉和条状切换曲线彼此近似平行的相应开关图的区域中选择的多个耦合长度（L / l）操作，以及垂直轴，垂直轴限定耦合长度的数量，或者来自交叉和条状态电压曲线都大致为零斜率的交叉和条状状态的对应过程灵敏度图的区域。这些定向耦合器中的多个形成光开关阵列，并且多个阵列形成用于切换光信号的系统或网络，每个阵列能够在低串扰水平下以均匀的交叉和条状电压进行操作。

4. 发明授权

US4725114A Optical waveguide lateral alignment arrangement 失效
标题翻译：光波导横向对准布置
公开(公告)号：US4725114A
公开(公告)日：1988-02-16
申请号：US780920
申请日：1985-09-27
申请人： Edmond J. Murphy
发明人： Edmond J. Murphy
IPC分类号： G02B6/28 , G02B6/30 , G02B6/38
CPC分类号： G02B6/30 , G02B6/2826 , G02B6/3839 , G02B6/3873
摘要： An arrangement for providing optical coupling between a pair of substrates is disclosed. The arrangement is capable of providing automatic alignment in the lateral direction, that is, the direction perpendicular to the direction of optical signal flow along the surface of the optical substrate. In accordance with the teachings of the present invention, an interlocking system of alignment grooves and alignment ridges are utilized to prevent this unwanted motion and aid in alignment between the two pieces. In particular, an alignment ridge, or ridges, are formed on the top surface of a first substrate and are disposed to be parallel with a plurality of optical waveguides formed in the first substrate. The corresponding alignment grooves are formed in the second substrate, where this substrate may contain a plurality of fibers held in associated v-grooves. Waveguide-to-waveguide communication is achieved by forming alignment ridges on a pair of waveguide containing substrates. The substrates may then be placed end-to-end, where the alignment grooves in the second substrate will interlock with both sets of alignment ridges. As long as the dimensions of the alignment ridges and grooves are formed to complement each other in size - and are spaced similarly in their respective substrates - the alignment ridges and grooves will interlock when the two substrates are joined, thus preventing motion between the two substrates in the lateral direction.
摘要翻译：公开了一种用于在一对基板之间提供光耦合的装置。该装置能够在横向方向上提供自动对准，即，沿着光学基板的表面的光信号流的方向垂直的方向。根据本发明的教导，利用对准槽和对准脊的互锁系统来防止这种不希望的运动并有助于两件之间的对准。特别地，在第一基板的顶表面上形成对准脊或脊，并且设置成与形成在第一基板中的多个光波导平行。对应的对准槽形成在第二基板中，其中该基板可以包含保持在相关联的V形槽中的多个纤维。通过在一对含波导的衬底上形成对准脊来实现波导到波导通信。然后，基板可以端对端放置，其中第二基板中的对准凹槽将与两组对准脊互锁。只要对准脊和槽的尺寸形成为彼此互补，并且在它们各自的基底中类似地间隔开，则当两个基板接合时，对准脊和槽将互锁，从而防止两个基板之间的运动在横向上。

5. 发明授权

US4639074A Fiber-waveguide self alignment coupler 失效
标题翻译：光纤波导自对准耦合器
公开(公告)号：US4639074A
公开(公告)日：1987-01-27
申请号：US621453
申请日：1984-06-18
申请人： Edmond J. Murphy
发明人： Edmond J. Murphy
IPC分类号： G02B6/30 , G02B6/36
CPC分类号： G02B6/30
摘要： An optical fiber-to-waveguide coupler is disclosed which automatically aligns five of the six possible degrees of freedom associated with the alignment process. Silicon v-grooves (22) are used to hold the fibers (24) in place in the silicon substrate (20), but in contrast to prior art arrangements, the silicon substrate overlaps the top surface (12) of the waveguide substrate (14). A cover plate (26) disposed over the silicon substrate is cut and polished so that the endface of the cover plate (28) lies in the same plane as the ends of the fibers (30). When the endface of the cover plate is butted against the endface (16) of the waveguide substrate, and the silicon v-grooves have been etched to the proper predetermined depth, five of the six degrees of freedom are automatically aligned.
摘要翻译：公开了一种光纤到波导耦合器，其自动对准与对准过程相关联的六个可能自由度中的五个。硅V槽（22）用于将光纤（24）保持在硅衬底（20）中的适当位置，但是与现有技术的布置相反，硅衬底与波导衬底（14）的顶表面（12）重叠）。切割并抛光设置在硅衬底上的盖板（26），使得盖板（28）的端面位于与纤维（30）的端部相同的平面中。当盖板的端面抵靠波导基板的端面（16）时，硅V形槽已被蚀刻到适当的预定深度，六个自由度中的五个自动对准。

6. 发明申请

US20080292239A1 Adiabatic Waveguide Transitions 审中-公开
标题翻译：绝热波导转换
公开(公告)号：US20080292239A1
公开(公告)日：2008-11-27
申请号：US12126176
申请日：2008-05-23
申请人： Barthelemy Fondeur , Edmond J. Murphy , Robert J. Brainard
发明人： Barthelemy Fondeur , Edmond J. Murphy , Robert J. Brainard
IPC分类号： G02B6/12
CPC分类号： G02B6/12014 , G02B6/12011
摘要： The invention relates to waveguiding structures in planar lightwave circuit devices that include a transition region between a slab waveguide and channel waveguides to reduce optical coupling loss. In particular star couplers and arrayed waveguide gratings incorporating the transition region of the present invention demonstrate reduced insertion loss. By creating a transition region composed of transverse rows intersecting the output waveguide array, where the rows have equal dimensions and the effective refractive index is controlled by increasing the spacing width gradually from row to row, an adiabatic transition is created from slab waveguide to channel waveguide array. This structure provides low insertion loss within practical manufacturing tolerances. In addition, the present invention has found that by incorporating the transition region of the present invention into an AWG, the reduced insertion loss can be controlled as uniform insertion loss across the channels.
摘要翻译：本发明涉及平面光波电路器件中的波导结构，其包括在平板波导和沟道波导之间的过渡区域以减少光耦合损耗。特别地，结合本发明的过渡区域的星形耦合器和阵列波导光栅显示出降低的插入损耗。通过产生由与输出波导阵列交叉的横向行组成的过渡区域，其中行具有相等的尺寸，并且通过逐行增加间隔宽度来控制有效折射率，从平板波导到通道波导产生绝热转变数组。该结构在实际制造公差内提供低插入损耗。此外，本发明已经发现，通过将本发明的过渡区域结合到AWG中，可以将减小的插入损耗控制为在通道上均匀的插入损耗。

7. 发明授权

US5101465A Leadframe-based optical assembly 失效
标题翻译：基于LEADFRAME的光学装配
公开(公告)号：US5101465A
公开(公告)日：1992-03-31
申请号：US563455
申请日：1990-08-07
申请人： Edmond J. Murphy
发明人： Edmond J. Murphy
IPC分类号： G02B6/42
CPC分类号： G02B6/42 , G02B6/4202 , G02B6/4204
摘要： A leadframe-based optical assembly is disclosed which is suitable for use with either transmitter or receiver optical assemblies. The leadframe includes a number of separate sections, each leadframe section being associated with a separate optical assembly. A particular leadframe section includes a first contact lead with an aperture therethrough such that the active region of the optical may be aligned with the aperture. A first electrical connection is made between the first lead and the optical device surface containing the active region. The remaining electrical connection is provided by a second contact lead which is wire bonded to the opposing surface of the optical device. A fiber section (fiber-containing ferrule) is attached to the opposite side of the leadframe in the vicinity of the first contact aperture to provide coupling between the optical fiber and the active region. Lensed fibers and/or semiconductor optical devices may be used to increase coupling efficiency.

8. 发明授权

US4598039A Formation of features in optical material 失效
标题翻译：形成光学材料的特征
公开(公告)号：US4598039A
公开(公告)日：1986-07-01
申请号：US627025
申请日：1984-07-02
申请人： Frederick H. Fischer , Edmond J. Murphy , Trudie C. Rice
发明人： Frederick H. Fischer , Edmond J. Murphy , Trudie C. Rice
IPC分类号： B23K26/00 , B23K26/18 , B23K26/40 , B44B7/00 , G02B6/122 , G02B6/36 , G02B6/42 , G03C5/00
CPC分类号： G02B6/1221 , B23K26/362 , B23K26/40 , B23K26/402 , B44B7/00 , G02B6/3636 , G02B6/3688 , B23K2201/35 , B23K2203/16 , B23K2203/30 , B23K2203/36 , B23K2203/50 , B23K2203/52 , G02B6/3652 , G02B6/4224 , Y10S430/146
摘要： A laser or other source of radiant electromagnetic energy removes optically transparent material (e.g., LiNbO.sub.3) to form various structures. To enhance coupling the radiant energy to the optical material, a layer of an ablative absorber (e.g., a metal or organic material) can be used. Alternately, the radiant source can be initially operated above a threshold that causes removal of a surface layer of the optical material. After selectively thus removing a surface layer of the optical material, subsequent sub-threshold applications of radiant energy remove additional optical material due to a change in the underlying material, rendering it more absorptive at the wavelength of the electromagnetic energy. Optical devices, including waveguides, can be formed, as well as isolation grooves, alignment structures, etc.
摘要翻译：激光或其他辐射电磁能源消除光学透明材料（例如LiNbO 3）以形成各种结构。为了将辐射能耦合到光学材料，可以使用消融吸收体（例如，金属或有机材料）的层。或者，辐射源可以首先在导致去除光学材料的表面层的阈值以上操作。在选择性地因此去除光学材料的表面层之后，辐射能量的后续次级阈值应用由于下层材料的变化而移除附加的光学材料，使得其在电磁能的波长处更吸收。可以形成包括波导在内的光学器件，以及隔离槽，对准结构等。

9. 发明授权

US5600738A Polarization dispersion compensation for optical devices 失效
标题翻译：光学器件的极化色散补偿
公开(公告)号：US5600738A
公开(公告)日：1997-02-04
申请号：US366935
申请日：1994-12-30
申请人： Glenn D. Bergland , Fred L. Heismann , Steven K. Korotky , Edmond J. Murphy
发明人： Glenn D. Bergland , Fred L. Heismann , Steven K. Korotky , Edmond J. Murphy
IPC分类号： G02B6/122 , G02B6/34 , G02F1/03 , H04B10/18 , G02B6/126
CPC分类号： G02B6/274 , G02B6/278 , H04B10/2572
摘要： An optical device having a first substrate having a fast optical axis and a slow optical axis and a first end and a second substrate having a fast optical axis and a slow optical axis and a second end, the second end is positioned adjacent to the first end such that the fast optical axis of the first substrate is coupled to the slow optical axis of the second substrate and the slow optical axis of the first substrate is coupled to the fast optical axis of the second substrate, thereby permitting an optical signal to pass between the first and second substrates. The first substrate and the second substrate have substantially equal length to thereby substantially eliminate polarization dispersion.
摘要翻译：一种光学装置，其具有具有快速光轴和慢光轴的第一基板和具有快速光轴和慢光轴和第二端的第一端和第二基板，所述第二端邻近第一端使得第一衬底的快速光轴耦合到第二衬底的慢光轴，并且第一衬底的慢光轴耦合到第二衬底的快速光轴，从而允许光信号在第二衬底之间通过第一和第二基板。第一基板和第二基板具有基本上相等的长度，从而基本上消除偏振分散。

10. 发明授权

US5594818A Digital optical switch and modulator and a method for digital optical switching and modulation 失效
标题翻译：数字光开关和调制器以及数字光切换和调制方法
公开(公告)号：US5594818A
公开(公告)日：1997-01-14
申请号：US399082
申请日：1995-03-08
申请人： Edmond J. Murphy
发明人： Edmond J. Murphy
IPC分类号： G02F1/313 , G02F1/295
CPC分类号： G02F1/3137
摘要： A digital optical switch and a method for digital optical modulation are disclosed. The digital optical switch is comprised of an optical waveguide having an input control region, a connection region, and a separation region, and a generator which generates a smoothly varying electric field in an input control region of said optical waveguide and a substantially constant electric field in said separation region of said optical waveguide. The optical waveguide may be either an x-shaped optical waveguide or a y-shaped optical waveguide.
摘要翻译：公开了数字光开关和数字光调制方法。数字光开关包括具有输入控制区域，连接区域和分离区域的光波导，以及在所述光波导的输入控制区域中产生平滑变化的电场的发生器和基本恒定的电场在所述光波导的所述分离区域中。光波导可以是x形光波导或者是y形光波导。

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