公开(公告)号：US07460739B2

公开(公告)日：2008-12-02

申请号：US10527607

申请日：2003-09-09

申请人： Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

发明人： Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

IPC分类号： G02F1/295

CPC分类号： G02F1/2255 ,  G02F1/035 ,  G02F2201/126

摘要： An optical modulator comprises a Z-cut lithium niobate substrate (21) on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides (23, 25) lying beneath a buffer layer of dielectric material (27). First and second ground electrodes (29, 33) and a hot electrode (31) are disposed on the buffer layer (27), the first and second ground electrodes (29, 33) being spaced either side of the hot electrode (31), the hot electrode (31) and the first ground electrode (29) being proximate to at least apart of the respective waveguides (25, 23). The electrode structure is unsymmetrical in that (a) the hot electrode and the first ground electrode each have a width substantially less than that of the second ground electrode and or (b) the spacing between the first ground and hot electrodes is different from the spacing between the second ground and hot electrodes. whereby a range of chirp values can be obtained. When the spacing (G1) between the first ground and hot electrodes (29, 31) is smaller than the spacing (G2) between the second ground and hot electrodes (33, 31), and preferably the hot and first ground electrodes have a width not exceeding 15 μm, the modulator is capable of operation at frequencies above 10 GHz, possibly up to around 40 GHz.

摘要翻译： 光学调制器包括Z切割的铌酸锂衬底（21），其上形成有马赫 - 曾德尔干涉仪，其具有位于电介质材料（27）的缓冲层下方的两个大致平行的波导（23,25）。 第一和第二接地电极（29,33）和热电极（31）设置在缓冲层（27）上，第一和第二接地电极（29,33）与热电极（31）的任一侧隔开， 热电极（31）和第一接地电极（29）接近相应波导（25,23）的至少一部分。 电极结构是不对称的，其中（a）热电极和第一接地电极的宽度明显小于第二接地电极的宽度，和（b）第一接地电极和热电极之间的间距不同于间隔 在第二接地和热电极之间。 由此可以获得啁啾值的范围。 当第一接地电极和热电极（29,31）之间的间隔（G1）小于第二接地电极和热电极（33,31）之间的间隔（G2）时，优选地，热和第一接地电极的宽度 不超过15um，调制器能够在高于10GHz，可能高达约40GHz的频率下工作。

公开(公告)号：US07336872B1

公开(公告)日：2008-02-26

申请号：US09892472

申请日：2001-06-28

申请人： Bernard Y. Malo

发明人： Bernard Y. Malo

IPC分类号： G02B6/34 ,  G02B6/02 ,  G02B6/10

CPC分类号： G02B6/02138 ,  G02B6/02147

摘要： A method for producing a Bragg grating in an optical waveguide device such as an optical fiber. The optical fiber is exposed to a UV source through a phase mask and this produces a Bragg grating on the fiber. The grating on the fiber is overexposed such that the gratings are stronger than desired. The fiber is then annealed to stabilize the gratings left behind. The gratings left behind are still stronger than desired. The fiber is then exposed to a point source laser that reduces the index change for selected portions. This trims the existing grating to result in the desired grating strength.

摘要翻译： 一种在诸如光纤的光波导器件中制造布拉格光栅的方法。 光纤通过相位掩模暴露于UV源，并在光纤上产生布拉格光栅。 光纤上的光栅过度曝光，使得光栅比期望的光栅更强。 然后将纤维退火以稳定留下的光栅。 留下的光栅仍然比想象的要强。 然后将光纤暴露于点源激光器，从而降低所选部分的折射率变化。 这将修整现有的光栅以产生所需的光栅强度。

公开(公告)号：US07298943B2

公开(公告)日：2007-11-20

申请号：US10527621

申请日：2003-09-10

申请人： Stephane Demiguel ,  Louis Giraudet ,  Mohand Achouche

发明人： Stephane Demiguel ,  Louis Giraudet ,  Mohand Achouche

IPC分类号： G02B6/32

CPC分类号： G02B6/4206 ,  G02B6/42 ,  H01L31/02327

摘要： The present invention relates to a monolithic optical component (400) comprising a light-absorbing layer and a waveguide structure (2). The invention is more particularly adapted to a monolithic component (400) comprising an evanescent coupling photodiode (6) integrated with the waveguide (2). The monolithic optical component (400) comprises a light-absorbing layer and a waveguide (2) evanescently coupled with the light-absorbing layer, the waveguide (2) having one end coupled to an input face (12) of the component to receive an input wave, the 10 component (400) being characterized in that the input face is convex.

摘要翻译： 本发明涉及一种包括光吸收层和波导结构（2）的单片光学元件（400）。 本发明更具体地适用于包括与波导（2）集成的ev逝耦合光电二极管（6）的单片组件（400）。 单片光学部件（400）包括光吸收层和与光吸收层ev逝耦合的波导（2），波导（2）的一端耦合到部件的输入面（12），以接收 输入波，10分量（400）的特征在于输入面是凸的。

公开(公告)号：US07257325B1

公开(公告)日：2007-08-14

申请号：US10439631

申请日：2003-05-16

申请人： Giovanni Barbarossa

发明人： Giovanni Barbarossa

IPC分类号： H04B10/08

CPC分类号： H04B10/0795 ,  H04J14/02

摘要： The present invention provides a method and system for monitoring composite optical signals carried over plural fiber-optic lines within an optical network. Methods and systems in accordance with the present invention each utilize a single OPM to monitor each one of a set of sample proportions of composite signals split off from respective fiber-optic lines. In one embodiment, an optical performance monitoring system comprises a plurality of fiber-optic lines, each fiber-optic line carrying a respective composite optical signal, a plurality of optical taps, each optical tap being optically coupled to a respective one of the fiber-optic lines and splitting a portion of the composite optical signal thereof, a plurality of optical switches, each optical switch being optically coupled to a respective one of the optical taps and comprising either an Open configuration and a Closed configuration, an optical coupler, and an Optical Performance Monitor (OPM).

摘要翻译： 本发明提供了一种用于监测在光网络内的多条光纤线路上承载的复合光信号的方法和系统。 根据本发明的方法和系统各自利用单个OPM来监测从相应的光纤线路分离的复合信号的一组采样比例中的每一个。 在一个实施例中，光学性能监视系统包括多个光纤线路，每个光纤线路承载相应的复合光学信号，多个光学抽头，每个光学抽头光纤耦合到光纤 - 光学线路和其复合光信号的一部分，多个光学开关，每个光学开关光学耦合到相应的一个光学抽头，并且包括开放配置和闭合配置，光耦合器和 光学性能监视器（OPM）。

公开(公告)号：US07218857B1

公开(公告)日：2007-05-15

申请号：US10402731

申请日：2003-03-28

申请人： Ming Li

发明人： Ming Li

IPC分类号： H04J14/02

CPC分类号： H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213

摘要： A re-configurable optical add/drop apparatus separates an optical input signal into a first signal having a plurality of channels and a second signal having a plurality of channels and includes a channel router with drop ports, a wavelength-selective channel attenuator with a controllable polarization modulator, and an optical coupler. The channel router routes the selected channels of the first signal to the drop ports. The wavelength-selective channel attenuator selectively blocks some of the channels of the second signal to produce a third signal. The optical coupler couples the third signal with a fourth signal having a plurality of add channels to produce an optical output signal.

摘要翻译： 可重配置的光分插装置将光输入信号分离为具有多个通道的第一信号和具有多个通道的第二信号，并且包括具有下降端口的通道路由器，具有可控制的波长选择性通道衰减器 偏振调制器和光耦合器。 信道路由器将所选择的第一信号的信道路由到分出端口。 波长选择性信道衰减器选择性地阻挡第二信号的一些信道以产生第三信号。 光耦合器将第三信号与具有多个附加通道的第四信号耦合以产生光输出信号。

公开(公告)号：US07120337B1

公开(公告)日：2006-10-10

申请号：US11093948

申请日：2005-03-29

申请人： Di Yang ,  Giovanni Barbarossa

发明人： Di Yang ,  Giovanni Barbarossa

IPC分类号： G02B6/26

CPC分类号： G02B6/4249 ,  G02B6/3855 ,  G02B6/4202

摘要： One embodiment of an optical fiber for reducing insertion loss and insertion loss ripple includes a tapered region where the optical fiber has a diameter of approximately 125 microns at a first end and a diameter of approximately 50 microns at a second end. The cladding layer of the tapered region is tapered from the first end towards the second end. This section of the optical fiber may be tapered using an etch process or any other technically feasible process. The tapered configuration enables the distance between the optical axes of two optical fibers inserted into a ferrule to be reduced from approximately 125 microns to approximately 50 microns. Decreasing the distance between the optical axes causes a reduction in both insertion loss and insertion loss ripple.

摘要翻译： 用于减少插入损耗和插入损耗波纹的光纤的一个实施例包括锥形区域，其中光纤在第一端具有大约125微米的直径，在第二端具有大约50微米的直径。 锥形区域的包覆层从第一端向第二端渐缩。 光纤的这一部分可以使用蚀刻工艺或任何其它技术上可行的工艺来进行锥形化。 锥形配置使得插入到套圈中的两根光纤的光轴之间的距离可以从大约125微米减小到大约50微米。 降低光轴之间的距离会导致插入损耗和插入损耗波动的减小。

公开(公告)号：US20060209297A1

公开(公告)日：2006-09-21

申请号：US11081926

申请日：2005-03-15

申请人： Michel Biet ,  Gilles Ughetto ,  Laurent Lievre ,  Jerome Felsemberg

发明人： Michel Biet ,  Gilles Ughetto ,  Laurent Lievre ,  Jerome Felsemberg

IPC分类号： G01B11/26

CPC分类号： G02B6/4221 ,  G01B11/272 ,  G02B6/4225

摘要： The proposed solution to the problems associated with assembling optical components introduces an angular alignment step and the use of collimated optical beams to the assembly process. One embodiment of a method for aligning optical components includes the steps of angularly aligning a fiber subassembly and a laser subassembly to achieve a desired angular position of the fiber subassembly relative to the laser subassembly, transversely aligning the fiber subassembly and the laser subassembly to achieve a desired linear position of the fiber subassembly relative to the laser subassembly, while maintaining the desired angular position, and installing an intermediate part configured to accommodate the desired angular position and the desired linear position. The method also includes the step of permanently assembling the fiber subassembly, the laser subassembly and the intermediate part, while maintaining the desired angular position and the desired linear position.

摘要翻译： 针对与组装光学部件相关联的问题的提出的解决方案引入了角度对准步骤和使用准直光束到组装过程。 用于对准光学部件的方法的一个实施例包括以下步骤：将纤维子组件和激光子组件成角度地对准以实现光纤子组件相对于激光子组件的期望角度位置，横向对准光纤子组件和激光子组件以实现 同时保持所需的角度位置，以及安装配置成适应所需角度位置和期望的线性位置的中间部分的光纤子组件相对于激光子组件的期望的线性位置。 该方法还包括在维持期望的角度位置和期望的线性位置的同时永久地组装光纤子组件，激光子组件和中间部分的步骤。

公开(公告)号：US20060093266A1

公开(公告)日：2006-05-04

申请号：US10527607

申请日：2003-09-09

申请人： Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

发明人： Giovanni Gilardi ,  Paolo Milanese ,  Simone Pensa

IPC分类号： G02B6/42 ,  G02F1/295

CPC分类号： G02F1/2255 ,  G02F1/035 ,  G02F2201/126

摘要： An optical modulator comprises a Z-cut lithium niobate substrate (21) on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides (23, 25) lying beneath a buffer layer of dielectric material (27). First and second ground electrodes (29, 33) and a hot electrode (31) are disposed on the buffer layer (27), the first and second ground electrodes (29, 33) being spaced either side of the hot electrode (31), the hot electrode (31) and the first ground electrode (29) being proximate to at least apart of the respective waveguides (25, 23). The electrode structure is unsymmetrical in that (a) the hot electrode and the first ground electrode each have a width substantially less than that of the second ground electrode and or (b) the spacing between the first ground and hot electrodes is different from the spacing between the second ground and hot electrodes. whereby a range of chirp values can be obtained. When the spacing (G1) between the first ground and hot electrodes (29, 31) is smaller than the spacing (G2) between the second ground and hot electrodes (33, 31), and preferably the hot and first ground electrodes have a width not exceeding 15 μm, the modulator is capable of operation at frequencies above 10 GHz, possibly up to around 40 GHz.

摘要翻译： 光学调制器包括Z切割的铌酸锂衬底（21），其上形成有马赫 - 曾德尔干涉仪，其具有位于电介质材料（27）的缓冲层下方的两个大致平行的波导（23,25）。 第一和第二接地电极（29,33）和热电极（31）设置在缓冲层（27）上，第一和第二接地电极（29,33）与热电极（31）的任一侧隔开， 热电极（31）和第一接地电极（29）接近相应波导（25,23）的至少一部分。 电极结构是不对称的，其中（a）热电极和第一接地电极的宽度明显小于第二接地电极的宽度，和（b）第一接地电极和热电极之间的间距不同于间隔 在第二接地和热电极之间。 由此可以获得啁啾值的范围。 当第一接地电极和热电极（29,31）之间的间隔（G 1）小于第二接地电极和热电极（33,31）之间的间隔（G 2）时，优选地，热和第一接地电极具有 宽度不超过15um，调制器能够在高于10GHz，可能高达约40GHz的频率下工作。

公开(公告)号：US06993239B2

公开(公告)日：2006-01-31

申请号：US10678526

申请日：2003-10-03

申请人： Herbert B. Dela Rosa ,  Giovanni Barbarossa ,  William Z. Guan ,  Weidong Zhu ,  Khanh T. Ly ,  Ching-Lin Chang

发明人： Herbert B. Dela Rosa ,  Giovanni Barbarossa ,  William Z. Guan ,  Weidong Zhu ,  Khanh T. Ly ,  Ching-Lin Chang

IPC分类号： G02B6/00 ,  G02B6/36

CPC分类号： G02B6/4428 ,  G02B6/3897 ,  G02B6/4248

摘要： An optical module box made of aluminum that has a reworkable glass-sealed fiber feedthru is disclosed. A fiber is inserted through a glass seal and a C-seal for hermetically sealing an opening in the optical module box. In a first embodiment, a module box employing a single-fiber fiber feedthru is described. In a second embodiment, a module box employing a 2-fiber feedthru is described. In a third embodiment, a module box employing a ribbon fiber feedthru is described. A module box having an opening with a single-fiber feedthru, comprising a C-seal; a glass sealed feedthru having a front tube and a back tube, the back tube of the glass sealed feedthru extending through the C-seal; and a fiber passing through the glass sealed feedthru and the C-seal, thereby hermetically sealed into the opening of the module box.

摘要翻译： 公开了一种由铝制成的光学模块盒，其具有可再加工的玻璃密封纤维馈送。 纤维通过玻璃密封件和C形密封件插入，用于密封光学模块盒中的开口。 在第一实施例中，描述了采用单纤维纤维馈送的模块盒。 在第二实施例中，描述了采用2-光纤馈通的模块盒。 在第三实施例中，描述了采用带状光纤馈通的模块盒。 一种具有带有单纤维进料口的开口的模块箱，包括C型密封件; 玻璃密封进料口具有前管和后管，玻璃的后管密封进料口延伸穿过C型密封; 以及通过玻璃密封的进料和C型密封件的纤维，从而气密地密封到模块盒的开口中。

公开(公告)号：US20050249508A1

公开(公告)日：2005-11-10

申请号：US11123580

申请日：2005-05-05

申请人： Leroy Volz ,  Duc Phan ,  Wenjun Li

发明人： Leroy Volz ,  Duc Phan ,  Wenjun Li

IPC分类号： H01S5/06 ,  H01S5/068 ,  H01S5/0683 ,  H04B10/04 ,  H04B10/155

CPC分类号： H01S5/0683 ,  H01S5/0617 ,  H01S5/06804 ,  H04B10/504 ,  H04B10/564

摘要： A system and an apparatus used to control laser diodes in optical communications systems, wherein the targeted or desired laser power can be varied, if needed, as a function of the laser temperature, and/or any other pertinent parameters. The adjustment of the targeted laser power or of the laser modulation current, via analog signals provided by digital-to-analog converters (DAC's), may be implemented either as a table lookup or as an explicit equation of one or more variables. If implemented as an explicit equation, the curve fit used to generate the equation may be any order.

摘要翻译： 一种用于控制光通信系统中的激光二极管的系统和装置，其中如果需要，可以根据激光温度和/或任何其他相关参数来改变目标或期望的激光功率。 可以通过由数模转换器（DAC）提供的模拟信号来调整目标激光功率或激光调制电流，或者作为表查找或一个或多个变量的显式方程来实现。 如果实现为显式方程，则用于生成方程的曲线拟合可以是任何顺序。