公开(公告)号：US07039330B2

公开(公告)日：2006-05-02

申请号：US10684122

申请日：2003-10-10

申请人： Thomas Lenosky

发明人： Thomas Lenosky

IPC分类号： H04B10/06 ,  H03H7/30 ,  H03K5/159

CPC分类号： H04B10/2581 ,  H04B10/25133

摘要： Mitigating errors caused by the dispersion of optical or electrical signals. Errors caused by dispersion in high frequency system are mitigated by passing a received signal through an adjustable linear filter that counteracts a channel response of a channel on which the received signal has traveled to produce an electrical signal. The adjustable linear filter has a number of coefficients. A figure of merit is calculated for the electrical signal, where the figure of merit includes the second and fourth moments of the electrical signal. The coefficients of the linear filter are adjusted based on the value of the figure of merit so as to minimize the figure of merit.

摘要翻译： 减轻光或电信号分散造成的误差。 通过使接收到的信号通过可调节的线性滤波器来减轻高频系统中的色散引起的误差，该线性滤波器抵消接收信号已经行进的信道的信道响应以产生电信号。 可调线性滤波器具有多个系数。 为电信号计算品质因数，其中品质因数包括电信号的第二和第四时刻。 基于品质因数的值调整线性滤波器的系数，以使品质因数最小化。

公开(公告)号：US06829281B2

公开(公告)日：2004-12-07

申请号：US10175309

申请日：2002-06-19

申请人： Hongyu Deng ,  Thomas Lenosky ,  Jan Lipson

发明人： Hongyu Deng ,  Thomas Lenosky ,  Jan Lipson

IPC分类号： H01S308

CPC分类号： H01S5/183 ,  H01S5/105

摘要： A vertical cavity surface emitting laser (VCSEL) using photonic crystals. Photonic crystals are formed such that the active region of the VCSEL is bounded by the photonic crystals. The photonic crystals have a periodic cavity structure that reflects light of certain wavelengths through the active region of the VCSEL such that laser light at the wavelengths is generated. Additional photonic crystals can be formed to increase the bandwidth of the VCSEL. The photonic crystals can also be combined with distributed bragg reflector layers to form the mirrors of a VCSEL.

摘要翻译： 使用光子晶体的垂直腔表面发射激光器（VCSEL）。 形成光子晶体，使得VCSEL的有源区域被光子晶体限制。 光子晶体具有通过VCSEL的有源区域反射某些波长的光的周期性空腔结构，使得产生波长的激光。 可以形成额外的光子晶体以增加VCSEL的带宽。 光子晶体还可以与分布式布拉格反射器层组合以形成VCSEL的反射镜。

公开(公告)号：US06999679B2

公开(公告)日：2006-02-14

申请号：US10683908

申请日：2003-10-10

申请人： Thomas Lenosky

发明人： Thomas Lenosky

IPC分类号： H04B10/12

CPC分类号： H04B10/43

摘要： Signal reflection mitigation in fiber-optic networks. Signal reflections are mitigated using near-end echo cancellation, threshold adjustment and/or error correction code. Signal reflections in a receive signal that are caused by near-end connectors may be mitigated using an echo cancellation signal. Signal reflections caused by other discontinuities on a fiber-optic network may be mitigated by using error correction code. Also, an average value of a reflected signal maybe detected and used to set an adjusted threshold value to interpret logical values of an electronic or optical signal.

摘要翻译： 光纤网络信号反射减轻。 使用近端回波消除，阈值调整和/或纠错码减轻信号反射。 可以使用回波消除信号来减轻由近端连接器引起的接收信号中的信号反射。 通过使用纠错码可以减轻由光纤网络上其他不连续性引起的信号反射。 此外，可以检测反射信号的平均值并将其用于设置调整后的阈值以解释电子或光信号的逻辑值。

公开(公告)号：US06810056B1

公开(公告)日：2004-10-26

申请号：US10256001

申请日：2002-09-26

申请人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

发明人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

IPC分类号： H01S500

CPC分类号： H01S5/18319 ,  H01S5/105 ,  H01S5/18327 ,  H01S2301/166

摘要： A vertical cavity surface emitting laser (VCSEL) using photonic crystals with a central defect. At least one of the mirror layers of a VCSEL includes a photonic crystal with a central defect. The central defect, which is surrounded by a periodic structure of holes or cavities, permits laser light to propagate and exit the VCSEL. Semi-insulating regions are formed in the active region such that when cavities are drilled in the photonic crystal and penetrate the active region, the cavities pass through the semi-insulating regions. This reduces the surface recombination that would otherwise occur in the active region and prevents the threshold current from increasing. The photonic crystal with a central defect has a reflectivity that is wavelength dependent. The VCSEL thus emits a single mode.

摘要翻译： 使用具有中心缺陷的光子晶体的垂直腔表面发射激光器（VCSEL）。 VCSEL的至少一个镜层包括具有中心缺陷的光子晶体。 由孔或腔的周期性结构包围的中心缺陷允许激光传播并离开VCSEL。 在有源区域中形成半绝缘区域，使得当在光子晶体中钻孔并穿透有源区域时，腔体通过半绝缘区域。 这减少了否则将在有源区域中发生的表面复合并且防止阈值电流增加。 具有中心缺陷的光子晶体具有波长依赖性的反射率。 因此，VCSEL发出单一模式。

公开(公告)号：US07668220B2

公开(公告)日：2010-02-23

申请号：US12423791

申请日：2009-04-14

申请人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

发明人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

IPC分类号： H01S5/00

CPC分类号： H01S5/18319 ,  H01S5/105 ,  H01S5/18327 ,  H01S2301/166

摘要： Vertical cavity surface emitting lasers are disclosed, one example of which includes a substrate upon which a lower mirror layer is formed. An active region and upper mirror layer are disposed, in that order, on the lower mirror layer. In particular, the upper mirror layer includes a plurality of DBR layers formed on the active region. The upper mirror layer additionally includes a photonic crystal formed on the plurality of DBR layers and having a periodic structure that contributes to the definition of a central defect. As a consequence of this structure, the photonic crystal has a reflectivity that is wavelength dependent, and the central defect enables the VCSEL to propagate a single mode.

摘要翻译： 公开了垂直空腔表面发射激光器，其一个示例包括其上形成有下镜面层的基板。 有源区和上镜层依次设置在下镜层上。 具体而言，上镜层包括在活性区域上形成的多个DBR层。 上镜层另外包括形成在多个DBR层上并具有有助于定义中心缺陷的周期性结构的光子晶体。 作为这种结构的结果，光子晶体具有波长依赖性的反射率，并且中心缺陷使VCSEL能够传播单个模式。

公开(公告)号：US20050117622A1

公开(公告)日：2005-06-02

申请号：US11021320

申请日：2004-12-22

申请人： Thomas Lenosky ,  Giorgio Giaretta ,  Qing Deng

发明人： Thomas Lenosky ,  Giorgio Giaretta ,  Qing Deng

IPC分类号： H01S3/08 ,  H01S5/12

CPC分类号： H01S5/12 ,  H01S5/1212 ,  H01S5/1215 ,  H01S5/1225 ,  H01S5/124

摘要： This disclosure concerns distributed feedback (“DFB”) lasers. In one example, a DFB laser includes a body that has first and second end facets. The DFB laser is implemented in a stack configuration that includes an active region interposed between a first top layer and a substrate. A second top layer is disposed on the first top layer and has an index of refraction different from that of the first top layer. Additionally, a grating is defined in one of the top layers and extends from the first end facet to the second end facet. The grating includes a tooth/gap structure whose configuration varies between the first end facet and the second end facet. Finally, an antireflective (AR) coating is disposed on the first end facet and on the second end facet.

摘要翻译： 本公开涉及分布式反馈（“DFB”）激光器。 在一个示例中，DFB激光器包括具有第一和第二端面的主体。 DFB激光器以堆叠配置实现，其包括置于第一顶层和衬底之间的有源区。 第二顶层设置在第一顶层上并具有不同于第一顶层的折射率。 此外，光栅被限定在顶层中的一个中并且从第一端面延伸到第二端面。 光栅包括齿/间隙结构，其构造在第一端面和第二端面之间变化。 最后，抗反射（AR）涂层设置在第一端面和第二端面上。

公开(公告)号：US20050078963A1

公开(公告)日：2005-04-14

申请号：US10683908

申请日：2003-10-10

申请人： Thomas Lenosky

发明人： Thomas Lenosky

IPC分类号： H04B10/28 ,  H04B10/00

CPC分类号： H04B10/43

摘要： Signal reflection mitigation in fiber-optic networks. Signal reflections are mitigated using near-end echo cancellation, threshold adjustment and/or error correction code. Signal reflections in a receive signal that are caused by near-end connectors may be mitigated using an echo cancellation signal. Signal reflections caused by other discontinuities on a fiber-optic network may be mitigated by using error correction code. Also, an average value of a reflected signal maybe detected and used to set an adjusted threshold value to interpret logical values of an electronic or optical signal.

摘要翻译： 光纤网络信号反射减轻。 使用近端回波消除，阈值调整和/或纠错码减轻信号反射。 可以使用回波消除信号来减轻由近端连接器引起的接收信号中的信号反射。 通过使用纠错码可以减轻由光纤网络上的其他不连续性引起的信号反射。 此外，可以检测反射信号的平均值并将其用于设置调整后的阈值以解释电子或光信号的逻辑值。

公开(公告)号：US20050078779A1

公开(公告)日：2005-04-14

申请号：US10684122

申请日：2003-10-10

申请人： Thomas Lenosky

发明人： Thomas Lenosky

IPC分类号： G02B20060101 ,  H04B1/10 ,  H04B10/13 ,  H04B10/18

CPC分类号： H04B10/2581 ,  H04B10/25133

摘要： Mitigating errors caused by the dispersion of optical or electrical signals. Errors caused by dispersion in high frequency system are mitigated by passing a received signal through an adjustable linear filter that counteracts a channel response of a channel on which the received signal has traveled to produce an electrical signal. The adjustable linear filter has a number of coefficients. A figure of merit is calculated for the electrical signal, where the figure of merit includes the second and fourth moments of the electrical signal. The coefficients of the linear filter are adjusted based on the value of the figure of merit so as to minimize the figure of merit.

摘要翻译： 减轻光或电信号分散造成的误差。 通过使接收到的信号通过可调节的线性滤波器来减轻高频系统中的色散引起的误差，该线性滤波器抵消接收信号已经行进的信道的信道响应以产生电信号。 可调线性滤波器具有多个系数。 为电信号计算品质因数，其中品质因数包括电信号的第二和第四时刻。 基于品质因数的值调整线性滤波器的系数，以使品质因数最小化。

公开(公告)号：US20050008060A1

公开(公告)日：2005-01-13

申请号：US10913625

申请日：2004-08-06

申请人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

发明人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

IPC分类号： H01S5/10 ,  H01S5/183 ,  H01S3/08 ,  H01S5/00

CPC分类号： H01S5/18319 ,  H01S5/105 ,  H01S5/18327 ,  H01S2301/166

摘要： Vertical cavity surface emitting lasers are disclosed, one example of which includes a substrate upon which a lower mirror layer is formed. An active region and upper mirror layer are disposed, in that order, on the lower mirror layer. In particular, the upper mirror layer includes a plurality of DBR layers formed on the active region. The upper mirror layer additionally includes a photonic crystal formed on the plurality of DBR layers and having a periodic structure that contributes to the definition of a central defect. As a consequence of this structure, the photonic crystal has a reflectivity that is wavelength dependent, and the central defect enables the VCSEL to propagate a single mode.

摘要翻译： 公开了垂直空腔表面发射激光器，其一个示例包括其上形成有下镜面层的基板。 有源区和上镜层依次设置在下镜层上。 具体而言，上镜层包括在活性区域上形成的多个DBR层。 上镜层另外包括形成在多个DBR层上并具有有助于定义中心缺陷的周期性结构的光子晶体。 作为这种结构的结果，光子晶体具有波长依赖性的反射率，并且中心缺陷使VCSEL能够传播单个模式。

公开(公告)号：US20090232176A1

公开(公告)日：2009-09-17

申请号：US12423791

申请日：2009-04-14

申请人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

发明人： Jan Lipson ,  Thomas Lenosky ,  Hongyu Deng

IPC分类号： H01S5/183 ,  H01S5/187 ,  H01S3/08

CPC分类号： H01S5/18319 ,  H01S5/105 ,  H01S5/18327 ,  H01S2301/166

摘要： Vertical cavity surface emitting lasers are disclosed, one example of which includes a substrate upon which a lower mirror layer is formed. An active region and upper mirror layer are disposed, in that order, on the lower mirror layer. In particular, the upper mirror layer includes a plurality of DBR layers formed on the active region. The upper mirror layer additionally includes a photonic crystal formed on the plurality of DBR layers and having a periodic structure that contributes to the definition of a central defect. As a consequence of this structure, the photonic crystal has a reflectivity that is wavelength dependent, and the central defect enables the VCSEL to propagate a single mode.

摘要翻译： 公开了垂直空腔表面发射激光器，其一个示例包括其上形成有下镜面层的基板。 有源区和上镜层依次设置在下镜层上。 具体而言，上镜层包括在活性区域上形成的多个DBR层。 上镜层另外包括形成在多个DBR层上并具有有助于定义中心缺陷的周期性结构的光子晶体。 作为这种结构的结果，光子晶体具有波长依赖性的反射率，并且中心缺陷使VCSEL能够传播单个模式。