公开(公告)号：US07796656B2

公开(公告)日：2010-09-14

申请号：US11979510

申请日：2007-11-05

申请人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

发明人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

IPC分类号： H01S3/098 ,  H01S3/08

CPC分类号： H01S5/12 ,  H01S5/0655 ,  H01S5/1014 ,  H01S5/1221 ,  H01S5/1237 ,  H01S5/22

摘要： The invention describes the method and apparatus for enhanced efficiency in a laterally-coupled distributed feedback (LC-DFB) laser. In a device featuring the effective ridge design, lateral confinement of the guided optical modes is provided by a surface etched grating, which also serves as a DFB element of the laser. Coupling and quantum efficiency of such a LC-DFB laser both improve with an increase of the lateral mode order. In accordance with this invention, a dramatic enhancement of the laser efficiency is achievable by designing it to operate in one of the higher order modes, notably the first order mode, while all the other lateral modes, including the zero order mode, are suppressed through gain-loss discrimination. In the exemplary embodiment of the invention, this enhanced efficiency technique is applied to the design of a single-mode LC-DFB laser suitable for a monolithic integration with other active and passive functional elements of photonic integrated circuits fabricated by using one-step epitaxial growth.

摘要翻译： 本发明描述了用于增强侧向耦合分布反馈（LC-DFB）激光器的效率的方法和装置。 在具有有效脊设计的装置中，引导光学模式的横向限制由表面蚀刻光栅提供，其也用作激光的DFB元件。 这种LC-DFB激光器的耦合和量子效率随着横向模式顺序的增加而改善。 根据本发明，激光效率的显着提高可以通过将其设计成以较高阶模式（特别是一阶模式）中的一种工作来实现，而包括零级模式的所有其它横向模式通过 损益歧视。 在本发明的示例性实施例中，该增强效率技术被应用于单模LC-DFB激光器的设计，其适用于通过使用一步外延生长制造的光子集成电路的其它有源和无源功能元件的单片集成 。

公开(公告)号：US07471378B2

公开(公告)日：2008-12-30

申请号：US11427985

申请日：2006-06-30

申请人： Eric Desfonds ,  Kirill Pimenov

发明人： Eric Desfonds ,  Kirill Pimenov

IPC分类号： G01N21/00 ,  G01J4/00

CPC分类号： G01J4/04 ,  G01M11/337 ,  H04Q2213/1301

摘要： The present invention relates to a method for determining a polarization dependent characteristic of an optical or opto-electronic device. Using the Mueller matrix data, a matrix M corresponding to a difference between a first and a second transmission spectrum is determined. The first and the second transmission spectrum correspond to a first Stokes vector and a second Stokes vector, respectively, with the second Stokes vector being opposite to the first Stokes vector. Eigenvalues of the matrix M are then determined and the first Stokes vector is determined by selecting the largest eigenvalue of the matrix M and determining a corresponding eigenvector. The second Stokes vector is then determined as a vector opposite to the first Stokes vector. Finally, the data indicative of the polarization dependent characteristic of the device are determined using the first and the second Stokes vector and the Mueller matrix data. This method is highly beneficial by providing highly accurate data related to polarization dependent parameters while simultaneously providing a nearly instantaneous result with minimum computational effort.

摘要翻译： 本发明涉及一种用于确定光学或光电子器件的偏振相关特性的方法。 使用Mueller矩阵数据，确定与第一和第二透射光谱之间的差对应的矩阵M. 第一和第二透射光谱分别对应于第一斯托克斯矢量和第二斯托克斯矢量，第二斯托克斯矢量与第一斯托克斯矢量相反。 然后确定矩阵M的特征值，并且通过选择矩阵M的最大特征值并确定对应的特征向量来确定第一斯托克斯向量。 然后将第二斯托克斯矢量确定为与第一斯托克斯矢量相反的向量。 最后，使用第一和第二斯托克斯矢量和米勒矩阵数据确定指示设备的偏振相关特性的数据。 该方法通过提供与偏振相关参数相关的高精度数据而非常有益，同时以最小的计算量提供几乎瞬时的结果。

公开(公告)号：US20080138008A1

公开(公告)日：2008-06-12

申请号：US11984759

申请日：2007-11-21

申请人： Valery Tolstikhin ,  Yury Logvin ,  Kirill Pimenov

发明人： Valery Tolstikhin ,  Yury Logvin ,  Kirill Pimenov

IPC分类号： G02B6/12

CPC分类号： G02B6/1228 ,  G02B6/125 ,  G02B2006/12097 ,  G02B2006/12119

摘要： The invention describes an integrated-photonics arrangement, implementable in a multi-guide vertical integration structure composed from III-V semiconductors and grown in one epitaxial growth run, that allows for vertical and lateral splitting of optical signals co- or bi-directionally propagating in the common passive waveguide into plurality of the vertically integrated passive or active wavelength-designated waveguides, therefore, enabling the wavelength-designated waveguides operating in different wavelengths to be monolithically integrated onto the same substrate and connected to the shared passive waveguide. In the exemplary embodiments of the invention, two active wavelength-designated waveguides, each of which either laser or photodetector, are vertically integrated with a common passive waveguide connected to the input/output optical port shared by both operating wavelengths, to form a single-fiber, two-wavelength receiver (both wavelength-designated waveguides are waveguide photodetectors) or transmitter (both wavelength-designated waveguides are edge-emitting semiconductor injection lasers) or transceiver (one wavelength-designated waveguide is waveguide photodetector and the other—edge-emitting semiconductor injection laser). Advantageously to the previous art, the proposed vertical splitting and lateral routing allows for a reduced footprint size while greatly improving design flexibility and/or device performance.

摘要翻译： 本发明描述了一种集成光子学布置，其可以在由III-V半导体构成并且在一个外延生长运行中生长的多导向垂直整合结构中实现，其允许垂直和横向分裂光信号共同或双向传播 将普通的无源波导分为多个垂直集成的无源或有源波长指定的波导，因此能使波长指定的在不同波长下工作的波导单片集成在同一基板上并连接到共用无源波导。 在本发明的示例性实施例中，两个有源波长指定的波导（其中的每个激光器或光电检测器）与连接到由两个工作波长共用的输入/输出光学端口的公共无源波导垂直集成， 光纤，双波长接收器（两个波长指定的波导是波导光电检测器）或发射器（两个波长指定的波导都是边缘发射半导体注入激光器）或收发器（一个波长指定的波导是波导光电检测器，另一个边缘发射 半导体注入激光）。 有利的是，与先前技术相比，所提出的垂直分割和横向布线允许减小占地面积的大小，同时大大提高设计灵活性和/或设备性能。

公开(公告)号：US20080069496A1

公开(公告)日：2008-03-20

申请号：US11898398

申请日：2007-09-12

申请人： Valery Tolstikhin ,  Kirill Pimenov

发明人： Valery Tolstikhin ,  Kirill Pimenov

IPC分类号： G02B6/34

CPC分类号： G02B6/124

摘要： The invention describes the method and apparatus for enhancement of coupling efficiency in effective-ridge laterally-coupled surface-etched grating waveguide structures, where a slab waveguide has a sequence of the periodic parallel segmented trenches etched from its top surface, such that the segments of intact material having higher refractive index than that in the surrounding segments of periodic trenches form the effective ridges which confine the optical field in and around these ridges, on one hand, and provide bidirectional coupling for the confined modes experiencing Bragg reflection from the segments of the periodic trenches, on the other. The invention discloses the designs of the multiple effective ridge laterally coupled surface-etched grating waveguide structures, which enhances the coupling efficiency as compared to a conventional single effective ridge grating design because of an intended dilution of the lateral confinement caused by the multiple effective ridges, resulting in an increase of the optical mode's overlap with the surface etched grating formed everywhere outside the effective ridges.

摘要翻译： 本发明描述了用于增强有效脊横向耦合表面蚀刻光栅波导结构中的耦合效率的方法和装置，其中平板波导具有从其顶表面蚀刻的周期性平行分段沟槽的序列，使得 具有比周期性沟槽的周围段中的折射率高的折射率的完整材料一方面形成将光场限制在这些脊内和周围的有效脊，一方面，为经受来自该段的段的布拉格反射提供双向耦合 周期性的沟渠，另一方面。 本发明公开了多个有效脊侧向耦合表面蚀刻光栅波导结构的设计，与传统的单一有效脊格栅设计相比，由于由多个有效脊引起的横向约束的预期稀释，增强了耦合效率， 导致光学模式与在有效脊之外形成的表面蚀刻光栅的重叠的增加。

公开(公告)号：US20070031083A1

公开(公告)日：2007-02-08

申请号：US11473242

申请日：2006-06-23

申请人： Yury Logvin ,  Serge Grabtchak ,  Kirill Pimenov

发明人： Yury Logvin ,  Serge Grabtchak ,  Kirill Pimenov

IPC分类号： G02B6/42 ,  G02F1/295 ,  G02F1/01 ,  G02B6/26 ,  G02B6/10

CPC分类号： G02B6/125 ,  G02B2006/12097

摘要： Ridge and buried waveguide structures feature a plurality of trenches disposed proximate the waveguides in order to enhance confinement of an optical signal propagating within the waveguide are described. Additionally, an adiabatic transition region where the distance between trenches and waveguide is featured.

摘要翻译： 描述了脊和掩埋波导结构，其特征在于设置在波导附近的多个沟槽，以便增强在波导内传播的光信号的约束。 另外，其中特征在于沟槽和波导之间的距离的绝热过渡区域。

公开(公告)号：US07609919B2

公开(公告)日：2009-10-27

申请号：US11898398

申请日：2007-09-12

申请人： Valery Tolstikhin ,  Kirill Pimenov

发明人： Valery Tolstikhin ,  Kirill Pimenov

IPC分类号： G02B6/34 ,  G02B6/00 ,  G02B6/12 ,  G02B6/26 ,  G02B6/10 ,  H01S3/00 ,  H01S5/00 ,  H01S3/08

CPC分类号： G02B6/124

摘要： The invention describes the method and apparatus for enhancement of coupling efficiency in effective-ridge laterally-coupled surface-etched grating waveguide structures, where a slab waveguide has a sequence of the periodic parallel segmented trenches etched from its top surface, such that the segments of intact material having higher refractive index than that in the surrounding segments of periodic trenches form the effective ridges which confine the optical field in and around these ridges, on one hand, and provide bidirectional coupling for the confined modes experiencing Bragg reflection from the segments of the periodic trenches, on the other. The invention discloses the designs of the multiple effective ridge laterally coupled surface-etched grating waveguide structures, which enhances the coupling efficiency as compared to a conventional single effective ridge grating design because of an intended dilution of the lateral confinement caused by the multiple effective ridges, resulting in an increase of the optical mode's overlap with the surface etched grating formed everywhere outside the effective ridges.

摘要翻译： 本发明描述了用于增强有效脊横向耦合表面蚀刻光栅波导结构中的耦合效率的方法和装置，其中平板波导具有从其顶表面蚀刻的周期性平行分段沟槽的序列，使得 具有比周期性沟槽的周围段中的折射率高的折射率的完整材料一方面形成将光场限制在这些脊内和周围的有效脊，一方面，为经受来自该段的段的布拉格反射提供双向耦合 周期性的沟渠，另一方面。 本发明公开了多个有效脊侧向耦合表面蚀刻光栅波导结构的设计，与传统的单一有效脊格栅设计相比，由于由多个有效脊引起的侧向约束的预期稀释，增强了耦合效率， 导致光学模式与在有效脊之外形成的表面蚀刻光栅的重叠的增加。

公开(公告)号：US20090136173A1

公开(公告)日：2009-05-28

申请号：US11984922

申请日：2007-11-26

申请人： Yury Logvin ,  Fang Wu ,  Kirill Pimenov ,  Valery Tolstikhin

发明人： Yury Logvin ,  Fang Wu ,  Kirill Pimenov ,  Valery Tolstikhin

IPC分类号： G02B6/12 ,  H01L21/00

CPC分类号： G02B6/12004 ,  G02B6/131 ,  G02B6/14

摘要： The invention describes method and apparatus for a mode converter enabling an adiabatic transfer of a higher order mode into a lower order optical mode within a photonic integrated circuit exploiting integrated semiconductor ridge waveguide techniques. As disclosed by the invention, such a mode conversion is achievable by using an asymmetric coupler methodology. In an exemplary embodiment of the invention, the invention is used to provide a low insertion loss optical connection between laterally-coupled DFB laser operating in first order mode and passive waveguide operating in the zero order optical mode. The integrated arrangement fabricated by using one-step epitaxial growth allows for a launch of the laser's light into the waveguide circuitry operating in the zero order lateral mode or efficiently coupling it to single-mode fiber, an otherwise high loss interface due to the difference in laser and optical fiber modes.

摘要翻译： 本发明描述了一种用于模式转换器的方法和装置，该模式转换器使得能够在利用集成半导体脊波导技术的光子集成电路内将较高阶模式绝热转移到低阶光学模式。 如本发明所公开的，通过使用不对称耦合器方法可以实现这种模式转换。 在本发明的示例性实施例中，本发明用于提供以一阶模式工作的横向耦合的DFB激光器和以零阶光学模式操作的无源波导之间的低插入损耗光学连接。 通过使用一步外延生长制造的集成布置允许将激光的光发射到以零级横向模式操作的波导电路中，或者将其有效地耦合到单模光纤，否则由于差的 激光和光纤模式。

公开(公告)号：US20090116522A1

公开(公告)日：2009-05-07

申请号：US11979510

申请日：2007-11-05

申请人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

发明人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

IPC分类号： H01S5/00 ,  H01L21/00 ,  H01S3/00 ,  H01L33/00

CPC分类号： H01S5/12 ,  H01S5/0655 ,  H01S5/1014 ,  H01S5/1221 ,  H01S5/1237 ,  H01S5/22

摘要： The invention describes the method and apparatus for enhanced efficiency in a laterally-coupled distributed feedback (LC-DFB) laser. In a device featuring the effective ridge design, lateral confinement of the guided optical modes is provided by a surface etched grating, which also serves as a DFB element of the laser. Coupling and quantum efficiency of such a LC-DFB laser both improve with an increase of the lateral mode order. In accordance with this invention, a dramatic enhancement of the laser efficiency is achievable by designing it to operate in one of the higher order modes, notably the first order mode, while all the other lateral modes, including the zero order mode, are suppressed through gain-loss discrimination. In the exemplary embodiment of the invention, this enhanced efficiency technique is applied to the design of a single-mode LC-DFB laser suitable for a monolithic integration with other active and passive functional elements of photonic integrated circuits fabricated by using one-step epitaxial growth.

摘要翻译： 本发明描述了用于增强侧向耦合分布反馈（LC-DFB）激光器的效率的方法和装置。 在具有有效脊设计的装置中，引导光学模式的横向限制由表面蚀刻光栅提供，其也用作激光的DFB元件。 这种LC-DFB激光器的耦合和量子效率随着横向模式顺序的增加而改善。 根据本发明，激光效率的显着提高可以通过将其设计成以较高阶模式（特别是一阶模式）中的一种工作来实现，而包括零级模式的所有其它横向模式通过 损益歧视。 在本发明的示例性实施例中，该增强效率技术被应用于单模LC-DFB激光器的设计，其适用于通过使用一步外延生长制造的光子集成电路的其它有源和无源功能元件的单片集成 。

公开(公告)号：US07444055B2

公开(公告)日：2008-10-28

申请号：US11984759

申请日：2007-11-21

申请人： Valery Tolstikhin ,  Yury Logvin ,  Kirill Pimenov

发明人： Valery Tolstikhin ,  Yury Logvin ,  Kirill Pimenov

IPC分类号： G02B6/10 ,  H04J14/02 ,  H01L21/82

CPC分类号： G02B6/1228 ,  G02B6/125 ,  G02B2006/12097 ,  G02B2006/12119

摘要： The invention describes an integrated-photonics arrangement, implementable in a multi-guide vertical integration structure composed from III-V semiconductors and grown in one epitaxial growth run, that allows for vertical and lateral splitting of optical signals co- or bi-directionally propagating in the common passive waveguide into plurality of the vertically integrated passive or active wavelength-designated waveguides, therefore, enabling the wavelength-designated waveguides operating in different wavelengths to be monolithically integrated onto the same substrate and connected to the shared passive waveguide. In the exemplary embodiments of the invention, two active wavelength-designated waveguides, each of which either laser or photodetector, are vertically integrated with a common passive waveguide connected to the input/output optical port shared by both operating wavelengths, to form a single-fiber, two-wavelength receiver (both wavelength-designated waveguides are waveguide photodetectors) or transmitter (both wavelength-designated waveguides are edge-emitting semiconductor injection lasers) or transceiver (one wavelength-designated waveguide is waveguide photodetector and the other—edge-emitting semiconductor injection laser). Advantageously to the previous art, the proposed vertical splitting and lateral routing allows for a reduced footprint size while greatly improving design flexibility and/or device performance.

摘要翻译： 本发明描述了一种集成光子学布置，其可以在由III-V半导体构成并且在一个外延生长运行中生长的多导向垂直整合结构中实现，其允许垂直和横向分裂光信号共同或双向传播 将普通的无源波导分为多个垂直集成的无源或有源波长指定的波导，因此能使波长指定的在不同波长下工作的波导单片集成在同一基板上并连接到共用无源波导。 在本发明的示例性实施例中，两个有源波长指定的波导（其中的每个激光器或光电检测器）与连接到由两个工作波长共用的输入/输出光学端口的公共无源波导垂直集成， 光纤，双波长接收器（两个波长指定的波导是波导光电检测器）或发射器（两个波长指定的波导都是边缘发射半导体注入激光器）或收发器（一个波长指定的波导是波导光电检测器，另一个边缘发射 半导体注入激光）。 有利的是，与先前技术相比，所提出的垂直分割和横向布线允许减小占地面积的大小，同时大大提高设计灵活性和/或设备性能。

公开(公告)号：US20070002321A1

公开(公告)日：2007-01-04

申请号：US11427985

申请日：2006-06-30

申请人： Eric Desfonds ,  Kirill Pimenov

发明人： Eric Desfonds ,  Kirill Pimenov

IPC分类号： G01J4/00

CPC分类号： G01J4/04 ,  G01M11/337 ,  H04Q2213/1301

摘要： The present invention relates to a method for determining a polarization dependent characteristic of an optical or opto-electronic device. Using the Mueller matrix data, a matrix M corresponding to a difference between a first and a second transmission spectrum is determined. The first and the second transmission spectrum correspond to a first Stokes vector and a second Stokes vector, respectively, with the second Stokes vector being opposite to the first Stokes vector. Eigenvalues of the matrix M are then determined and the first Stokes vector is determined by selecting the largest eigenvalue of the matrix M and determining a corresponding eigenvector. The second Stokes vector is then determined as a vector opposite to the first Stokes vector. Finally, the data indicative of the polarization dependent characteristic of the device are determined using the first and the second Stokes vector and the Mueller matrix data. This method is highly beneficial by providing highly accurate data related to polarization dependent parameters while simultaneously providing a nearly instantaneous result with minimum computational effort.

摘要翻译： 本发明涉及一种用于确定光学或光电子器件的偏振相关特性的方法。 使用Mueller矩阵数据，确定与第一和第二透射光谱之间的差对应的矩阵M. 第一和第二透射光谱分别对应于第一斯托克斯矢量和第二斯托克斯矢量，第二斯托克斯矢量与第一斯托克斯矢量相反。 然后确定矩阵M的特征值，并且通过选择矩阵M的最大特征值并确定对应的特征向量来确定第一斯托克斯向量。 然后将第二斯托克斯矢量确定为与第一斯托克斯矢量相反的向量。 最后，使用第一和第二斯托克斯矢量和米勒矩阵数据确定指示设备的偏振相关特性的数据。 该方法通过提供与偏振相关参数相关的高精度数据而非常有益，同时以最小的计算量提供几乎瞬时的结果。