公开(公告)号：US20080152277A1

公开(公告)日：2008-06-26

申请号：US11810585

申请日：2007-06-06

申请人： Brent E. Little

发明人： Brent E. Little

IPC分类号： G02B6/00 ,  G02B6/26

CPC分类号： G02B6/126 ,  G02B2006/12116 ,  G02B2006/12147 ,  G02B2006/12195

摘要： A method of fabricating a passive polarization sorter includes the steps of providing first and second waveguides. The first waveguide has an input and an output. The first waveguide supporting at least one guided TE polarized mode of mode ranking mode-i-TE and at least one guided TM polarized mode of mode ranking mode-j-TM. The second waveguide is positioned adjacent to the first waveguide, and the first and second waveguides are shaped to form an adiabatic region in which light having one of the TE and TM polarized modes remains within the first waveguide, and light having the other one of the TE and TM polarized modes evanescently couples into the second waveguide.

摘要翻译： 一种制造无源偏振分选器的方法包括提供第一和第二波导的步骤。 第一个波导具有输入和输出。 支持模式排序模式-i-TE和模式排序模式-J-TM的至少一个被引导的TM偏振模式的至少一个被引导的TE偏振模式的第一波导。 第二波导定位成与第一波导相邻，并且第一和第二波导被成形为形成绝热区域，其中具有TE偏振模式和TM偏振模式之一的光线保留在第一波导内，并且具有另一个波导的光 TE和TM偏振模式逐渐耦合到第二波导中。

公开(公告)号：US5777793A

公开(公告)日：1998-07-07

申请号：US686355

申请日：1996-07-25

申请人： Brent E. Little ,  Chi Wu

发明人： Brent E. Little ,  Chi Wu

IPC分类号： G02B6/12 ,  H01S5/10 ,  H01S5/12 ,  G02B1/10

CPC分类号： H01S5/12 ,  G02B6/12007 ,  H01S5/1028 ,  H01S5/1032 ,  G02B2006/12109 ,  G02B2006/12161 ,  G02B2006/12164

摘要： A polarization insensitive, multilayer planar reflection filter is provided having (I) strong sidelobe suppression, preferably with sidelobe suppression levels in the range of -30 dB to -50 dB, and (ii) minimum width of the filtered bandwidth for the specified sidelobe suppression level. The multilayer planar reflection filter is provided by a multilayer stack by specifying the manner in which the thickness of the individual dielectric layers are to be varied throughout the stack. The resulting universal design formula specifies these layer values for a stack with an arbitrary number of layers, dielectric constant, incident angle, and wavelength. In particular, the layer thickness values of the alternating layer d.sub.1 (j) in refractive index n.sub.0, and d.sub.2 (j) in refractive index n.sub.0 +.DELTA.n, vary with each period j and are determined to provide a specified central wavelength, sidelobe suppression and minimum filtered band width. The filter is polarization insensitive because the period required for maximum reflection at wavelength .lambda..sub.0 is the same for both TE and TM polarized light.

摘要翻译： 提供了偏振不敏感的多层平面反射滤波器，其具有（I）强旁瓣抑制，优选地具有在-30dB至-50dB的范围内的旁瓣抑制电平，以及（ii）用于指定旁瓣抑制的滤波带宽的最小宽度 水平。 多层平面反射滤光片由多层叠层提供，通过规定各层电介质层的厚度在整个叠层中变化的方式。 所得到的通用设计公式为具有任意数量的层，介电常数，入射角和波长的堆叠指定这些层值。 特别地，折射率n0的交替层d1（j）和折射率n0 + DELTA n中的d2（j））的层厚度随着每个周期j而变化，并且被确定为提供特定的中心波长，旁瓣抑制和 最小滤波带宽。 滤波器是偏振不敏感的，因为在波长λ0处最大反射所需的周期对于TE和TM偏振光都是相同的。

公开(公告)号：US08818194B2

公开(公告)日：2014-08-26

申请号：US12495343

申请日：2009-06-30

申请人： Brent E. Little ,  Wei Chen

发明人： Brent E. Little ,  Wei Chen

IPC分类号： H04J14/02 ,  G02B6/26

CPC分类号： H04J14/02

摘要： A tunable optical demultiplexer includes a control circuit and one or more heaters thermally coupled to waveguides of an optical demux. The control circuit is in signal communication with the one or more heaters and includes a processor coupled to a memory. The control circuit is configured to receive an optical channel group (OCG) identification signal and adjust the power delivered to the heaters in response to the OCG identification signal and based on parameter values stored in the memory. The optical demux outputs a plurality of optical signals at a corresponding one of a plurality of outputs. The transmission characteristics of the optical demux are varied depending on the amount of power delivered to the heaters. The varying of the transmission characteristics of the optical demux adjusts the spectral shifting of the plurality of wavelengths output by the optical demux.

摘要翻译： 可调谐光解复用器包括控制电路和热耦合到光学解复用器的波导的一个或多个加热器。 控制电路与一个或多个加热器信号通信，并且包括耦合到存储器的处理器。 控制电路被配置为接收光通道组（OCG）识别信号，并且响应于OCG识别信号并且基于存储在存储器中的参数值来调节传送到加热器的功率。 光解复用器在多个输出中相应的一个输出端输出多个光信号。 光学解复用器的传输特性根据传送到加热器的功率量而变化。 光学解复用器的传输特性的变化调节由光学解复用器输出的多个波长的光谱偏移。

公开(公告)号：US08116602B2

公开(公告)日：2012-02-14

申请号：US10473946

申请日：2002-04-02

申请人： Brent E. Little ,  Saitak Chu

发明人： Brent E. Little ,  Saitak Chu

IPC分类号： G02B6/26 ,  H04B10/00

CPC分类号： G02B6/1228 ,  G02B6/305

摘要： The present invention includes a device and a method for fabricating a device that is an optical power mode transformer that accepts light in a mode transformation direction where the transformer is attached to or embedded in a semiconductor microchip and includes a first single or multimode optical input (SM) waveguide including a first core surrounded by a cladding, and, a second high contrast index grade (HC) waveguide including a second core having a tapered region and surrounded by said cladding, a portion of the tapered region of the core being embedded within the first optical input waveguide region with an embedded length sufficient for efficient light transfer from the first input waveguide to the said second waveguide wherein the embedded portion of the tapered region is fully surrounded by the first input waveguide along an axial and radial cross-section of the second waveguide in the mode transformation direction. In this manner, it is possible that the long (SM) waveguide eventually actually acts as a cladding for the (HC) waveguide.

摘要翻译： 本发明包括一种用于制造器件的器件和方法，该器件是光变换器，其在变压器附接或嵌入到半导体微芯片中的模式转换方向上接受光，并且包括第一单模或多模光输入（ SM）波导，包括由包层围绕的第一芯，以及包括具有锥形区域并被所述包层围绕的第二芯的第二高对比度指数级（HC）波导，所述芯的锥形区域的一部分嵌入 所述第一光学输入波导区域具有足以用于从所述第一输入波导到所述第二波导的有效光传输的嵌入长度，其中所述锥形区域的嵌入部分被所述第一输入波导沿着轴向和径向横截面完全包围 第二个波导在模式转换方向。 以这种方式，可能长（SM）波导最终实际上用作（HC）波导的包层。

公开(公告)号：US20100302637A1

公开(公告)日：2010-12-02

申请号：US11963598

申请日：2007-12-21

申请人： Brent E. Little ,  Sai T. Chu

发明人： Brent E. Little ,  Sai T. Chu

IPC分类号： G02B27/28

CPC分类号： G02B6/29397 ,  G02B6/2726 ,  G02B6/2793

摘要： The present invention, in one embodiment contemplates a polarization insensitive optical circuit constructed of an input/output signal separator, such as an optical circulator or a 1×2 or 2×2 coupler or N×M coupler, a polarization sensitive operator, and a polarization rotator reflector. In an alternate embodiment, the invention contemplates a polarization insensitive optical circuit comprising a polarization rotator reflector, and a polarization sensitive operator which may comprise for example a first polarization rotator, an operator/coupler, and a polarization beam combiner. Preferably at least one of the components in the optical circuit is constructed integrally from the substrate upon which the optical circuit is based. For example the polarization rotator and/or polarization sensitive operator of the present invention may be monolithic.

公开(公告)号：US07526151B1

公开(公告)日：2009-04-28

申请号：US11778434

申请日：2007-07-16

申请人： Brent E. Little ,  Wei Chen ,  John V. Hryniewicz ,  Wenlu Chen ,  David M. Gill ,  Oliver King ,  Roy R. Davidson

发明人： Brent E. Little ,  Wei Chen ,  John V. Hryniewicz ,  Wenlu Chen ,  David M. Gill ,  Oliver King ,  Roy R. Davidson

IPC分类号： G02B6/12

CPC分类号： G02B6/136 ,  G03F1/00 ,  G03F7/0005 ,  G03F7/001

摘要： An intermediate structure used to form an integrated optics device comprising a substrate, a cladding on the substrate, at least one real waveguide on the cladding, and at least one dummy waveguide optically coupled with the real waveguide. The real waveguide forms a part of a predetermined planar lightwave circuit. The dummy waveguide does not form a part of the predetermined planar lightwave circuit.

摘要翻译： 一种用于形成集成光学器件的中间结构，包括衬底，衬底上的包层，包层上的至少一个真实波导以及与真实波导光耦合的至少一个虚拟波导。 真正的波导形成预定的平面光波电路的一部分。 虚拟波导不形成预定平面光波回路的一部分。

公开(公告)号：US07373042B2

公开(公告)日：2008-05-13

申请号：US11495201

申请日：2006-07-28

申请人： Brent E. Little

发明人： Brent E. Little

IPC分类号： G02B6/28

CPC分类号： G02B6/126 ,  G02B2006/12116 ,  G02B2006/12147 ,  G02B2006/12195

摘要： A polarization sorter having an input, an output and a slowly varying region. The input has at least one input waveguide. The input waveguide supports at least one guided TE polarized mode of mode ranking mode-i-TE, and at least one guided TM polarized mode of mode ranking mode-j-TM. The output has at least two output waveguides. At least one output waveguide supports a TE polarized mode of mode ranking mode-i-TE, and at least one waveguide supports a TM polarized mode of mode ranking mode-j-TM. The slowly varying region couples the at least one input waveguide at the input to the at least two output waveguides at the output.

摘要翻译： 偏振分选器具有输入，输出和缓慢变化的区域。 该输入具有至少一个输入波导。 输入波导支持模式排序模式-i-TE的至少一个被引导的TE偏振模式和模式排序模式-J-TM的至少一个被引导的TM偏振模式。 该输出具有至少两个输出波导。 至少一个输出波导支持模式分级模式-i-TE的TE偏振模式，并且至少一个波导支持模式排序模式-j-TM的TM偏振模式。 缓慢变化的区域将输入处的至少一个输入波导耦合到输出处的至少两个输出波导。

公开(公告)号：US07095920B1

公开(公告)日：2006-08-22

申请号：US10776706

申请日：2004-02-11

申请人： Brent E. Little

发明人： Brent E. Little

IPC分类号： G02B6/26 ,  G02B6/12

CPC分类号： G02B6/122 ,  G02B6/12002 ,  G02B6/1228 ,  G02B2006/12147 ,  G02B2006/12173 ,  G02B2006/12176

摘要： A broadband optical via provides a low loss interconnection between waveguides in two vertically adjacent planar waveguiding layers. Two waveguides, one in each planar layer, evanescently interact over an interaction length, and substantially all of the power on one waveguide is transferred to the second waveguide. The relative detuning between waveguides is varied along the interaction region by tapering the width of one or both guides along the direction of propagation. The interaction strength is also varied by varying the physical separation between the two waveguides such that the interaction approaches zero near the two ends of the interaction length. The performance of the broadband optical via is fabrication tolerant, polarization tolerant, wavelength tolerant, and dimensionally tolerant.

公开(公告)号：US06195187B1

公开(公告)日：2001-02-27

申请号：US09111004

申请日：1998-07-07

申请人： Richard A. Soref ,  Brent E. Little

发明人： Richard A. Soref ,  Brent E. Little

IPC分类号： H04J1400

CPC分类号： G02B6/2938 ,  G02B6/12007 ,  G02B6/29343 ,  G02B6/29395 ,  G02F1/3133 ,  G02F2203/15 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0035 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2011/0058 ,  H04Q2011/0073

摘要： Large-scale switching array architectures for multiwavelength routing employ absorption-switched micro-ring resonator 2×2 switches at all optical cross-points of each of a plurality of series-connected waveguide crossbar matrix switches. The architecture eliminates detrimental waveguide crossovers. Two or four coupled micro-rings made from layered III-V or II-VI hetrostructure material can aid in maintaining cross-talk at very low levels while employing simple switch addressing methods.

摘要翻译： 用于多波长路由的大规模开关阵列结构在多个串联连接的波导交叉矩阵开关中的每一个的所有光学交叉点处采用吸收开关微环形谐振器2x2开关。 该架构消除了有害的波导交叉。 由层状III-V或II-VI结构材料制成的两个或四个耦合的微环可以在采用简单的开关寻址方法的情况下帮助将串扰保持在非常低的水平。

公开(公告)号：US08634684B2

公开(公告)日：2014-01-21

申请号：US12828129

申请日：2010-06-30

申请人： Brent E. Little ,  Peter W. Evans

发明人： Brent E. Little ,  Peter W. Evans

IPC分类号： G02B6/26 ,  G02B6/42

CPC分类号： G02B6/105 ,  G02B6/125 ,  G02B2006/12097

摘要： The present invention provides a system, apparatus and method to maintain the polarization state of an optical signal propagating within a photonic integrated circuit, or from a first photonic integrated circuit to a second photonic integrated circuit. According to various embodiments of the invention, an optical circuit is provided which includes a waveguide having one or more bends or curved portions. The bends or curved portions of the waveguide are configured to maintain the polarization orientation of the optical signal as the optical signal propagates through the waveguide, such that the polarization orientation at inputs or outputs, or at various points along the waveguide is known. Embodiments of the present invention mitigate polarization crosstalk, which in turn provides for improved processing efficiency.

摘要翻译： 本发明提供了一种保持光信号在光子集成电路内或从第一光子集成电路传播到第二光子集成电路的偏振状态的系统，装置和方法。 根据本发明的各种实施例，提供一种光学电路，其包括具有一个或多个弯曲部分或弯曲部分的波导。 波导的弯曲或弯曲部分被配置为当光信号通过波导传播时保持光信号的偏振取向，使得在输入或输出处或沿着波导的各个点处的偏振取向是已知的。 本发明的实施例减轻了极化串扰，这又提供了改进的处理效率。