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11. 发明申请

US20050117622A1 Distributed feedback laser with differential grating 审中-公开
标题翻译：差分光栅分布式反馈激光器
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。

12. 发明申请

US20050078963A1 Cancellation of optical signal reflections in bi-directional optical fibers 失效
标题翻译：取消双向光纤中的光信号反射
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。

13. 发明申请

US20050078779A1 Optical signal equalizer with adjustable linear filter 失效
标题翻译：带可调线性滤波器的光信号均衡器
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。

14. 发明授权

US06965628B1 Distributed feedback laser having a differential grating 有权
标题翻译：具有差分光栅的分布式反馈激光器
公开(公告)号：US06965628B1
公开(公告)日：2005-11-15
申请号：US10284128
申请日：2002-10-30
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： A distributed feedback (“DFB”) laser featuring improved manufacturing yield and operational characteristics is disclosed. The present DFB laser includes a bottom confinement layer, an active region, and a top confinement layer disposed atop an n-doped substrate. A p-doped first top layer having a first index of refraction is disposed atop the top confinement layer. A grating is defined in the top surface of the first top layer, and a p-doped second top layer is overlaid on the grating. The two laser end facets are antireflectively coated. The grating is anisotropically etched to define a low kappa grating half and a high kappa grating half. Light waves produced in the active region interact with the grating and are biased toward the low kappa grating half that results in the majority of light signals passing through the end facet adjacent the low kappa grating half.
摘要翻译：公开了一种具有改进的制造产量和操作特性的分布式反馈（“DFB”）激光器。本DFB激光器包括底部限制层，有源区和设置在n掺杂衬底顶部的顶部限制层。具有第一折射率的p掺杂的第一顶层设置在顶部限制层的顶部。光栅被限定在第一顶层的顶表面中，并且p掺杂的第二顶层覆盖在光栅上。两个激光端面是抗反射涂层的。光栅被各向异性蚀刻以限定低kappa光栅半部和高kappa光栅一半。在有源区域中产生的光波与光栅相互作用，并被朝向低kappa光栅一半偏置，导致大部分光信号通过邻近低kappa光栅一半的端面。

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