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公开(公告)号：US08737846B2
公开(公告)日：2014-05-27
申请号：US13361873
申请日：2012-01-30
申请人： Xuezhe Zheng , Ying Luo , Guoliang Li , Ashok V. Krishnamoorthy
发明人： Xuezhe Zheng , Ying Luo , Guoliang Li , Ashok V. Krishnamoorthy
CPC分类号： H04J14/02 , G02B6/29308 , H04B10/506 , H04B10/572
摘要： An optical source uses feedback to maintain a substantially fixed spacing between adjacent wavelengths in a set of wavelengths in a wavelength comb output by the optical source. In particular, a set of light sources in the optical source provide optical signals having the set of wavelengths. Moreover, the optical signals are output at diffraction angles of an optical device in the optical source (such as an echelle grating), and optical detectors in the optical source determine optical metrics associated with the optical signals. Furthermore, control logic in the optical source provides control signals to the set of light sources based on the determined optical metrics.
摘要翻译： 光源使用反馈来维持由光源输出的波长梳输出中的一组波长中的相邻波长之间的基本上固定的间隔。 特别地，光源中的一组光源提供具有该组波长的光信号。 此外，光信号以光源（例如梯形光栅）中的光学装置的衍射角输出，并且光源中的光学检测器确定与光信号相关联的光学度量。 此外，光源中的控制逻辑基于所确定的光学量度向光源组提供控制信号。
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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：US08467122B2
公开(公告)日：2013-06-18
申请号：US13182227
申请日：2011-07-13
IPC分类号： H01S3/00
CPC分类号： H01S5/142 , H01S3/1055 , H01S3/106 , H01S5/1007 , H01S5/1032
摘要： A laser source includes a semiconductor optical amplifier (SOA) as a gain medium that receives and amplifies an optical signal characterized by at least a wavelength associated with a lasing mode of the laser source. This laser source includes a first optical waveguide and a second optical waveguide optically coupled to the SOA. Furthermore, a wavelength-selective reflector is optically coupled to the first optical waveguide and the second optical waveguide, where a closed loop defined by the SOA, the first optical waveguide, the wavelength-selective reflector and the second optical waveguide defines a cavity of the laser source.
摘要翻译： 激光源包括作为增益介质的半导体光放大器（SOA），其接收和放大以与激光源的激光模式相关联的至少一个波长为特征的光信号。 该激光源包括光耦合到SOA的第一光波导和第二光波导。 此外，波长选择性反射器光耦合到第一光波导和第二光波导，其中由SOA，第一光波导，波长选择反射器和第二光波导限定的闭环限定了 激光源。
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公开(公告)号：US20130016980A1
公开(公告)日：2013-01-17
申请号：US13180340
申请日：2011-07-11
申请人： Pranay Koka , Michael O. McCracken , Herbert D. Schwetman, JR. , Xuezhe Zheng , Ashok V. Krishnamoorthy
发明人： Pranay Koka , Michael O. McCracken , Herbert D. Schwetman, JR. , Xuezhe Zheng , Ashok V. Krishnamoorthy
CPC分类号： H04B10/801 , H04J14/02 , H04J14/021 , H04J14/0212 , H04J14/0213 , H04J14/0273
摘要： In a multi-chip module (MCM), integrated circuits are coupled by optical waveguides. These integrated circuits receive optical signals from a set of tunable light sources. Moreover, a given integrated circuit includes: a transmitter that modulates at least one of the optical signals when transmitting information to at least another of the integrated circuits; and a receiver that receives at least one modulated optical signal having a given carrier wavelength associated with the given integrated circuit when receiving information from at least the other of the integrated circuits. Furthermore, control logic in the MCM provides a control signal to the set of tunable light sources to specify carrier wavelengths in the optical signals output by the set of tunable light sources, thereby defining routing of at least the one of the optical signals in the MCM during communication between at least a pair of the integrated circuits.
摘要翻译： 在多芯片模块（MCM）中，集成电路通过光波导耦合。 这些集成电路从一组可调光源接收光信号。 此外，给定的集成电路包括：发送器，当向至少另一个集成电路发送信息时，调制至少一个光信号; 以及接收器，当从至少另一个集成电路接收信息时，接收具有与给定集成电路相关联的给定载波波长的至少一个调制光信号。 此外，MCM中的控制逻辑向可调谐光源组提供控制信号，以指定由可调谐光源组输出的光信号中的载波波长，从而定义MCM中的至少一个光信号的路由 在至少一对集成电路之间的通信期间。
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公开(公告)号：US20130016941A1
公开(公告)日：2013-01-17
申请号：US13180364
申请日：2011-07-11
申请人： Pranay Koka , Michael O. McCracken , Herbert D. Schwetman, JR. , Xuezhe Zheng , Ashok V. Krishnamoorthy
发明人： Pranay Koka , Michael O. McCracken , Herbert D. Schwetman, JR. , Xuezhe Zheng , Ashok V. Krishnamoorthy
IPC分类号： G02B6/12
CPC分类号： G02B6/43 , G02B6/4215 , G02B2006/12061
摘要： In a multi-chip module (MCM), integrated circuits are coupled by optical waveguides. These integrated circuits receive optical signals from a set of light sources which have fixed carrier wavelengths. Moreover, a given integrated circuit includes: a transmitter that modulates at least one of the optical signals when transmitting information to at least another of the integrated circuits; and a receiver that receives at least one modulated optical signal having one of the carrier wavelengths when receiving information from at least the other of the integrated circuits. Furthermore, the MCM includes tunable drop filters optically coupled to the optical waveguides and associated integrated circuits, wherein the tunable drop filters pass adjustable bands of wavelengths to receivers in the integrated circuits. Additionally, control logic in the MCM provides a control signal to the tunable drop filters to specify the adjustable bands of wavelengths.
摘要翻译： 在多芯片模块（MCM）中，集成电路通过光波导耦合。 这些集成电路从具有固定载波波长的一组光源接收光信号。 此外，给定的集成电路包括：发送器，当向至少另一个集成电路发送信息时，调制至少一个光信号; 以及接收器，当从至少另一个集成电路接收信息时，接收具有载波波长之一的至少一个调制光信号。 此外，MCM包括光耦合到光波导和相关联的集成电路的可调滴式滤波器，其中可调滴式滤波器将可调节的波段传送到集成电路中的接收器。 另外，MCM中的控制逻辑为可调降滤波器提供了一个控制信号，以指定波长的可调波段。
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公开(公告)号：US20130016423A1
公开(公告)日：2013-01-17
申请号：US13182227
申请日：2011-07-13
IPC分类号： H01S5/20
CPC分类号： H01S5/142 , H01S3/1055 , H01S3/106 , H01S5/1007 , H01S5/1032
摘要： A laser source includes a semiconductor optical amplifier (SOA) as a gain medium that receives and amplifies an optical signal characterized by at least a wavelength associated with a lasing mode of the laser source. This laser source includes a first optical waveguide and a second optical waveguide optically coupled to the SOA. Furthermore, a wavelength-selective reflector is optically coupled to the first optical waveguide and the second optical waveguide, where a closed loop defined by the SOA, the first optical waveguide, the wavelength-selective reflector and the second optical waveguide defines a cavity of the laser source.
摘要翻译： 激光源包括作为增益介质的半导体光放大器（SOA），其接收和放大以与激光源的激光模式相关联的至少一个波长为特征的光信号。 该激光源包括光耦合到SOA的第一光波导和第二光波导。 此外，波长选择性反射器光耦合到第一光波导和第二光波导，其中由SOA，第一光波导，波长选择反射器和第二光波导限定的闭环限定了 激光源。
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公开(公告)号：US20120237155A1
公开(公告)日：2012-09-20
申请号：US13048250
申请日：2011-03-15
CPC分类号： G02B6/12007 , G02B6/29382 , G02B2006/12147 , H04J14/0201
摘要： An optical multiplexer/demultiplexer is described. In this optical multiplexer/demultiplexer, multiple coupled-waveguide grating devices are optically coupled to a bus optical waveguide. A given coupled-waveguide grating device has a band-pass filter characteristic that encompasses multiple optical channels, thereby providing coarse optical filtering. Moreover, the optical multiplexer/demultiplexer includes multiple add/drop filters (such as ring resonators) that optically couple to the coupled-waveguide grating devices. A given add/drop filter has a filter bandwidth corresponding to a given optical channel, thereby providing fine optical filtering. Furthermore, the band-pass filter characteristic of the given coupled-waveguide grating device is approximately equal to or less than a free spectral range (FSR) of the given add/drop filter.
摘要翻译： 描述了光复用器/解复用器。 在该光复用器/解复用器中，多个耦合波导光栅器件光耦合到总线光波导。 给定的耦合波导光栅器件具有包含多个光通道的带通滤波器特性，由此提供粗略的光学滤波。 此外，光复用器/解复用器包括光耦合到耦合波导光栅器件的多个加/减滤波器（例如环形谐振器）。 给定的分插滤波器具有对应于给定光信道的滤波器带宽，从而提供精细的光学滤波。 此外，给定耦合波导光栅装置的带通滤波器特性近似等于或小于给定加/减滤波器的自由光谱范围（FSR）。
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公开(公告)号：US20110310917A1
公开(公告)日：2011-12-22
申请号：US12820833
申请日：2010-06-22
IPC分类号： H01S3/10
CPC分类号： H01S5/1096 , H01S5/0078 , H01S5/0085 , H01S5/0287 , H01S5/06821 , H04B10/506
摘要： In a multiple-wavelength laser source, a multiple-mode laser outputs a set of wavelengths in a range of wavelengths onto an optical waveguide, where a spacing between adjacent wavelengths in the set of wavelengths is smaller than a width of channels in an optical link. Furthermore, a set of ring-resonator filters in the multiple-wavelength laser source, which are optically coupled to the optical waveguide, output corresponding subsets of the set of wavelengths for use in the optical link based on free spectral ranges and quality factors of the set of ring-resonator filters. These subsets may include one or more groups of wavelengths, with another spacing between adjacent groups of wavelengths that is larger than the width of the given channel in the optical link. In addition, the one or more groups of wavelengths may include one or more wavelengths, with the spacing between adjacent wavelengths in the given group of wavelengths.
摘要翻译： 在多波长激光源中，多模激光器将波长范围内的一组波长输出到光波导上，其中波长组中的相邻波长之间的间隔小于光链路中的信道宽度 。 此外，光学耦合到光波导的多波长激光源中的一组环形谐振器滤波器基于自由光谱范围和质量因子输出用于光链路的该组波长的相应子集 环形谐振器滤波器组。 这些子集可以包括一组或多组波长，相邻波长组之间的另一个间隔大于光链路中给定信道的宽度。 此外，一组或多组波长可以包括一个或多个波长，在给定波长组中的相邻波长之间的间隔。
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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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公开(公告)号：US09091806B2
公开(公告)日：2015-07-28
申请号：US13440839
申请日：2012-04-05
CPC分类号： G02B6/122 , G02B6/4204 , G03H1/0248 , G03H2001/0434 , G03H2223/16 , G03H2270/54
摘要： An integrated circuit includes a holographic recording material substantially filling a cavity in a semiconductor layer. During operation of the integrated circuit, a holographic pattern in the holographic recording is reconstructed and used to diffract an optical signal propagating in a plane of an optical waveguide, which is defined in the semiconductor layer out of the plane through the cavity. In this way, the holographic recording material may be used to couple the optical signal to an optical fiber or another integrated circuit.
摘要翻译： 集成电路包括基本上填充半导体层中的空腔的全息记录材料。 在集成电路的操作期间，全息记录中的全息图被重构并用于将在半导体层中定义的光波导的平面中传播的光信号衍射出通过空腔的平面。 以这种方式，全息记录材料可以用于将光信号耦合到光纤或另一集成电路。
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