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公开(公告)号：US20150260914A1
公开(公告)日：2015-09-17
申请号：US13588261
申请日：2012-08-17
CPC分类号： G02B6/12023 , G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/29308 , G02B6/29358
摘要： Using silicon photonic components that support a single polarization, the output of an optical receiver is independent of the polarization of an optical signal. In particular, using a polarization-diversity technique, the two orthogonal polarizations in a single-mode optical fiber are split in two and processed independently. For example, the two optical signals are provided by a polarizing splitting grating coupler. Subsequently, a wavelength channel in the two optical signals is selected using a wavelength-selective filter (for example, using a ring resonator or an echelle grating) and combined at an optical detector (such as a photo-detector) to achieve polarization-independent operation.
摘要翻译： 使用支持单一极化的硅光子分量，光接收机的输出与光信号的偏振无关。 特别地，使用偏振分集技术，将单模光纤中的两个正交偏振分成两部分并独立处理。 例如，两个光信号由偏振分光光栅耦合器提供。 随后，使用波长选择滤波器（例如，使用环形谐振器或梯形光栅）选择两个光信号中的波长信道，并在光学检测器（例如光电检测器）处组合以实现偏振无关 操作。
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公开(公告)号：US20140246571A1
公开(公告)日：2014-09-04
申请号：US13588248
申请日：2012-08-17
CPC分类号： G01J1/0407 , G01J1/0209 , G01J1/0425 , G01J1/42 , G02B6/12004 , G02B6/124
摘要： An integrated optical device includes a photo-detector (such as germanium) optically coupled to an optical waveguide. This photo-detector is deposited on the optical waveguide, and an optical signal propagating in the optical waveguide may be evanescently coupled to the photo-detector. In order to increase the absorption length of the photo-detector, a mirror (such as a distributed Bragg reflection grating) is included in the optical waveguide near the end of the photo-detector. This mirror reflects the optical signal back toward the photo-detector, thereby increasing the absorption of the optical signal by the photo-detector. In addition, absorption may be reduced by using electrical contacts that are electrically coupled to the photo-detector at locations where the optical mode of the optical signal is largely in the underlying optical waveguide, and by using a fingered metal layer to couple to the electrical contacts.
摘要翻译： 集成光学器件包括光耦合到光波导的光检测器（例如锗）。 该光检测器沉积在光波导上，并且在光波导中传播的光信号可以ev逝地耦合到光检测器。 为了增加光检测器的吸收长度，在光检测器端部附近的光波导中包括反射镜（例如分布式布拉格反射光栅）。 该反射镜将光信号反射回光检测器，由此增加光信号由光检测器的吸收。 此外，通过使用在光信号的光学模式主要位于下面的光波导中的位置处电耦合到光检测器的电接触，并且通过使用指状金属层耦合到电 联系人
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公开(公告)号：US20130136389A1
公开(公告)日：2013-05-30
申请号：US13307298
申请日：2011-11-30
CPC分类号： G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/2813 , G02B6/29326
摘要： An optical de-MUX includes a sub-wavelength grating that magnifies an input optical signal. In particular, along a direction perpendicular to a propagation direction of the optical signal, the sub-wavelength grating has a spatially varying effective index of refraction that is larger at a center of the sub-wavelength grating than at an edge of the sub-wavelength grating. Moreover, the optical de-MUX includes an optical device that images and diffracts the optical signal using a reflective geometry, and which provides different diffraction orders to output ports. For example, the optical device may include an echelle grating.
摘要翻译： 光学去MUX包括放大输入光信号的子波长光栅。 特别地，沿着与光信号的传播方向垂直的方向，亚波长光栅具有空间变化的有效折射率，其在亚波长光栅的中心处比在亚波长的边缘处更大 光栅。 此外，光学去MUX包括使用反射几何形状对光学信号进行成像和衍射并且向输出端口提供不同衍射级的光学装置。 例如，光学装置可以包括一个梯形光栅。
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公开(公告)号：US09285539B2
公开(公告)日：2016-03-15
申请号：US13588261
申请日：2012-08-17
CPC分类号： G02B6/12023 , G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/29308 , G02B6/29358
摘要： Using silicon photonic components that support a single polarization, the output of an optical receiver is independent of the polarization of an optical signal. In particular, using a polarization-diversity technique, the two orthogonal polarizations in a single-mode optical fiber are split in two and processed independently. For example, the two optical signals are provided by a polarizing splitting grating coupler.Subsequently, a wavelength channel in the two optical signals is selected using a wavelength-selective filter (for example, using a ring resonator or an echelle grating) and combined at an optical detector (such as a photo-detector) to achieve polarization-independent operation.
摘要翻译： 使用支持单一极化的硅光子分量，光接收机的输出与光信号的偏振无关。 特别地，使用偏振分集技术，将单模光纤中的两个正交偏振分成两部分并独立处理。 例如，两个光信号由偏振分光光栅耦合器提供。 随后，使用波长选择滤波器（例如，使用环形谐振器或梯形光栅）选择两个光信号中的波长信道，并在光学检测器（例如光电检测器）处组合以实现偏振无关 操作。
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公开(公告)号：US09052447B2
公开(公告)日：2015-06-09
申请号：US13307298
申请日：2011-11-30
CPC分类号： G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/2813 , G02B6/29326
摘要： An optical de-MUX includes a sub-wavelength grating that magnifies an input optical signal. In particular, along a direction perpendicular to a propagation direction of the optical signal, the sub-wavelength grating has a spatially varying effective index of refraction that is larger at a center of the sub-wavelength grating than at an edge of the sub-wavelength grating. Moreover, the optical de-MUX includes an optical device that images and diffracts the optical signal using a reflective geometry, and which provides different diffraction orders to output ports. For example, the optical device may include an echelle grating.
摘要翻译： 光学去MUX包括放大输入光信号的子波长光栅。 特别地，沿着与光信号的传播方向垂直的方向，亚波长光栅具有空间变化的有效折射率，其在亚波长光栅的中心处比在亚波长的边缘处更大 光栅。 此外，光学去MUX包括使用反射几何形状对光学信号进行成像和衍射并且向输出端口提供不同衍射级的光学装置。 例如，光学装置可以包括一个梯形光栅。
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公开(公告)号：US09369201B2
公开(公告)日：2016-06-14
申请号：US13453930
申请日：2012-04-23
IPC分类号： H04B10/08 , H04B10/077 , H04B10/079 , H01S5/0687 , H01S5/40
CPC分类号： H04B10/0775 , H01S5/0687 , H01S5/40 , H04B10/07955
摘要： An optical-source monitor images and diffracts received optical signals using an optical device that has a reflective geometry. For example, the optical device may include a diffraction grating on a curved surface, such as an echelle grating. By imaging and diffracting the optical signals, the optical device may couple to the optical signals on different diffraction orders of the optical device (which have different carrier wavelengths) from input optical waveguides to corresponding output optical waveguides. Then, output power monitors may measure the output power levels of the optical signals, and control logic may provide wavelength control signals to optical sources that provide the optical signals based on measured output power levels.
摘要翻译： 光源监视器使用具有反射几何形状的光学装置对接收到的光信号进行成像和衍射。 例如，光学装置可以包括弯曲表面上的衍射光栅，例如梯形光栅。 通过成像和衍射光学信号，光学器件可以将光学器件（其具有不同的载波波长）的不同衍射级与输入光波导耦合到相应的输出光波导上的光信号。 然后，输出功率监视器可以测量光信号的输出功率电平，并且控制逻辑可以向根据测量的输出功率电平提供光信号的光源提供波长控制信号。
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公开(公告)号：US20150260913A1
公开(公告)日：2015-09-17
申请号：US13588242
申请日：2012-08-17
CPC分类号： G02B6/4296 , G02B6/12004 , G02B6/1228 , G02B6/124 , G02B6/1347 , G02B6/34 , G02B2006/12188 , H01S5/02252 , H01S5/026 , H01S5/1014 , H01S5/1032 , H01S5/14 , H01S5/187
摘要： A photonic integrated circuit (PIC) that includes an optical source that provides an optical signal having a wavelength is described. This optical source includes a reflecting layer, a bottom cladding layer, an active layer (such as a III-V semiconductor) having a bandgap wavelength that exceeds that of silicon, and a top cladding layer. Moreover, an optical coupler (such as a grating coupler) that couples the optical signal out of a plane of the active layer is included in a region of the active layer. In this region, the top cladding layer is absent. Furthermore, in an adjacent region, the top cladding layer includes an inverse taper so that the top cladding layer is tapered down from a width distal from the region. In conjunction with the optical coupler, the inverse taper may facilitate low-loss optical coupling of the optical signal between the PIC and another PIC.
摘要翻译： 描述了包括提供具有波长的光信号的光源的光子集成电路（PIC）。 该光源包括反射层，底部包层，具有超过硅的带隙波长的有源层（例如III-V半导体）和顶部覆层。 此外，将有源层的平面耦合光信号的光耦合器（诸如光栅耦合器）包括在有源层的区域中。 在该区域中，顶层包层不存在。 此外，在相邻区域中，顶部包层具有倒锥形，使得顶部包层从远离该区域的宽度向下锥形。 结合光耦合器，逆锥度可以促进PIC和另一个PIC之间的光信号的低损耗光耦合。
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公开(公告)号：US08885996B2
公开(公告)日：2014-11-11
申请号：US13551432
申请日：2012-07-17
CPC分类号： H04J14/02 , G02B6/12007 , G02B6/1225 , G02B6/29308 , G02B6/29326 , G02B6/2938 , G02B2006/12107
摘要： An optical multiplexer/de-multiplexer (MUX/de-MUX) includes a two-dimensional pattern of features in a propagation region that conveys an optical signal having wavelengths. A given feature in this pattern has a characteristic length and the features have an average pitch, both of which are less than fundamental smallest of the wavelengths divided by an effective index of refraction of the propagation region. Moreover, an optical device in the optical MUX/de-MUX images and diffracts the optical signal using a reflective geometry, and provides the imaged and diffracted optical signal to output ports. For example, the optical device may include an echelle grating.
摘要翻译： 光复用器/解复用器（MUX / de-MUX）包括传送具有波长的光信号的传播区域中的特征的二维图案。 该图案中的给定特征具有特征长度，并且特征具有平均间距，它们都小于波长的基本最小值除以传播区域的有效折射率。 此外，光学MUX /解复用器中的光学器件成像并使用反射几何衍射光信号，并将成像和衍射的光信号提供给输出端口。 例如，光学装置可以包括一个梯形光栅。
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公开(公告)号：US20140086585A1
公开(公告)日：2014-03-27
申请号：US13551432
申请日：2012-07-17
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , G02B6/12007 , G02B6/1225 , G02B6/29308 , G02B6/29326 , G02B6/2938 , G02B2006/12107
摘要： An optical multiplexer/de-multiplexer (MUX/de-MUX) includes a two-dimensional pattern of features in a propagation region that conveys an optical signal having wavelengths. A given feature in this pattern has a characteristic length and the features have an average pitch, both of which are less than fundamental smallest of the wavelengths divided by an effective index of refraction of the propagation region. Moreover, an optical device in the optical MUX/de-MUX images and diffracts the optical signal using a reflective geometry, and provides the imaged and diffracted optical signal to output ports. For example, the optical device may include an echelle grating.
摘要翻译： 光复用器/解复用器（MUX / de-MUX）包括传送具有波长的光信号的传播区域中的特征的二维图案。 该图案中的给定特征具有特征长度，并且特征具有平均间距，它们都小于波长的基本最小值除以传播区域的有效折射率。 此外，光学MUX /解复用器中的光学器件成像并使用反射几何衍射光信号，并将成像和衍射的光信号提供给输出端口。 例如，光学装置可以包括一个梯形光栅。
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公开(公告)号：US10119857B2
公开(公告)日：2018-11-06
申请号：US13588248
申请日：2012-08-17
摘要： An integrated optical device includes a photo-detector (such as germanium) optically coupled to an optical waveguide. This photo-detector is deposited on the optical waveguide, and an optical signal propagating in the optical waveguide may be evanescently coupled to the photo-detector. In order to increase the absorption length of the photo-detector, a mirror (such as a distributed Bragg reflection grating) is included in the optical waveguide near the end of the photo-detector. This mirror reflects the optical signal back toward the photo-detector, thereby increasing the absorption of the optical signal by the photo-detector. In addition, absorption may be reduced by using electrical contacts that are electrically coupled to the photo-detector at locations where the optical mode of the optical signal is largely in the underlying optical waveguide, and by using a fingered metal layer to couple to the electrical contacts.
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