Electrooptic silicon modulator with enhanced bandwidth
    62.
    发明授权
    Electrooptic silicon modulator with enhanced bandwidth 有权
    具有增强带宽的电光硅调制器

    公开(公告)号:US09274353B1

    公开(公告)日:2016-03-01

    申请号:US14282975

    申请日:2014-05-20

    Applicant: Kotura, Inc.

    Inventor: Po Dong

    Abstract: The modulator includes a ring resonator having a phase modulator that tunes blocked wavelengths within phase modulator bandwidths. The blocked bands include blocked wavelengths at which the intensity of an output light signal is minimized. Each of the blocked bands is associated with the phase modulator bandwidth within which the blocked wavelength is tuned. A bandwidth shifting device is configured to shift a selection of wavelengths that falls within each of the phase modulator bandwidths. Electronics are configured to operate the bandwidth shifting device so as to shift the phase modulator bandwidths from a location where a first target wavelength falls within a first one of the phase modulator bandwidths to a location where a second target wavelength falls within a second one of the phase modulator bandwidths.

    Abstract translation: 调制器包括具有相位调制器的环形谐振器,该相位调制器调谐相位调制器带宽内的阻挡波长。 阻挡带包括阻挡波长,输出光信号的强度最小化。 每个阻塞频带与被调谐波长的相位调制器带宽相关联。 带宽移位装置被配置为移动落在每个相位调制器带宽内的波长选择。 电子设备被配置为操作带宽移位设备,以便将相位调制器带宽从第一目标波长落在第一个相位调制器带宽内的位置移动到第二目标波长落在第二个 相位调制器带宽。

    SILICON PHOTONIC HYBRID POLARIZATION DEMULTIPLEXER
    64.
    发明申请
    SILICON PHOTONIC HYBRID POLARIZATION DEMULTIPLEXER 有权
    硅光电混合极化分解器

    公开(公告)号:US20160013868A1

    公开(公告)日:2016-01-14

    申请号:US14326309

    申请日:2014-07-08

    Abstract: An optical demultiplexer that includes at least one a hybrid phase shifter configured to receive a light signal over a fiber element, the light signal including polarized optical signals. Each phase shifter includes a thermo-optic phase shifter configured to phase shift the light signal, an electro-optic phase shifter configured to phase shift the light signal, and a coupler configured to maintain polarization of the polarized signal components. The optical demultiplexer also includes control circuitry configured to regulate the thermo-optic and electro-optic phase shifters.

    Abstract translation: 一种光解复用器,包括至少一个混合移相器,被配置为在光纤元件上接收光信号,所述光信号包括偏振光信号。 每个移相器包括被配置为使光信号相移的热光移相器,被配置为相移光信号的电光移相器和被配置为保持偏振信号分量的偏振的耦合器。 光解复用器还包括被配置为调节热光学和电光移相器的控制电路。

    Thermally tuneable optical modulator adapted for differential signaling
    65.
    发明授权
    Thermally tuneable optical modulator adapted for differential signaling 有权
    适用于差分信号的可热调式光调制器

    公开(公告)号:US09235065B1

    公开(公告)日:2016-01-12

    申请号:US14151637

    申请日:2014-01-09

    Abstract: An apparatus for optical modulation is provided. The apparatus includes a modulator structure and a heater structure. The modulator structure comprises a ring or disk optical resonator having a closed curvilinear periphery and a pair of oppositely doped semiconductor regions within and/or adjacent to the optical resonator and conformed to modify the optical length of the optical resonator upon application of a bias voltage. The heater structure comprises a relatively resistive annulus of semiconductor material enclosed between an inner disk and an outer annulus of relatively conductive semiconductor material. The inner disk and the outer annulus are adapted as contact regions for a heater activation current. The heater structure is situated within the periphery of the optical resonator such that in operation, at least a portion of the resonator is heated by radial conductive heat flow from the heater structure. The apparatus further includes a substantially annular isolation region of dielectric or relatively resistive semiconductor material interposed between the heater structure and the modulator structure. The isolation region is effective to electrically isolate the bias voltage from the heater activation current.

    Abstract translation: 提供了一种用于光调制的装置。 该装置包括调制器结构和加热器结构。 调制器结构包括具有闭合曲线外围和在光谐振器内和/或邻近于光学谐振器的一对相对掺杂的半导体区域的环形或光盘式光学谐振器,并符合在施加偏置电压时修改光学谐振器的光学长度。 加热器结构包括封闭在内部盘和相对导电的半导体材料的外部环之间的相对电阻的半导体材料环。 内盘和外环用作加热器激活电流的接触区域。 加热器结构位于光学谐振器的周边内,使得在操作中,谐振器的至少一部分被来自加热器结构的径向导电热流加热。 该装置还包括介于加热器结构和调制器结构之间的电介质或相对电阻的半导体材料的基本上环形的隔离区。 隔离区域有效地将偏置电压与加热器激活电流隔离。

    Reflective optical limiter
    66.
    发明授权
    Reflective optical limiter 有权
    反射光学限制器

    公开(公告)号:US09223157B2

    公开(公告)日:2015-12-29

    申请号:US14343922

    申请日:2012-09-12

    Abstract: An optical limiter comprises a glass backing, a glass cover, and a layer of a phase changing material placed between said glass backing and said glass cover, the phase changing material comprising a transparent matrix having embedded particles of material that changes its optical properties due to temperature induced phase change of said material. The optical properties may change from transparent to reflective, from transparent to refractive or from transparent to scattering. The phase changing material is preferably at least one material selected from the group consisting of the elements Antimony, Bismuth, Cadmium, Lead, Tin and Indium and low-melting-point alloys of two or more of these elements. Two or more layers of phase changing materials may be used in a stack configuration, with each of the phase changing materials having a unique melting temperature.

    Abstract translation: 光学限制器包括玻璃背衬,玻璃盖和放置在所述玻璃背衬和所述玻璃盖之间的相变材料层,所述相变材料包括具有嵌入的材料颗粒的透明基质,所述颗粒具有改变其光学性质的原因, 所述材料的温度诱导相变。 光学性质可以从透明到反射,从透明到折射或从透明变为散射。 相变材料优选为选自元素锑,铋,镉,铅,锡和铟的至少一种材料和这些元素中的两种或更多种的低熔点合金。 两层或多层相变材料可以以叠层构型使用,每个相变材料具有独特的熔化温度。

    Free-space laser tuning of optical microcavities
    67.
    发明授权
    Free-space laser tuning of optical microcavities 有权
    光学微腔的自由空间激光调谐

    公开(公告)号:US09223156B2

    公开(公告)日:2015-12-29

    申请号:US14180778

    申请日:2014-02-14

    Abstract: Methods and apparatuses for resonance tuning of microcavities are provided. An apparatus comprises a whispering gallery mode optical microcavity characterized by at least one resonance frequency; optical components configured to evanescently couple a probe laser beam into the microcavity; an absorber element in thermal contact with the microcavity; and optical components configured to illuminate the absorber element with a free space pump light beam, wherein the absorber element is configured to absorb energy from the free space pump light beam, thereby generating heat, and to transfer the heat to the microcavity, thereby inducing a shift in the at least one resonance frequency. The absorber element may be configured as a pillar forming an interfacial region with the microcavity at one of the ends of the pillar. The surface of the microcavity may be substantially free of a coating material.

    Abstract translation: 提供微腔谐振调谐的方法和装置。 一种装置包括以至少一个共振频率为特征的耳语画廊模式的光学微腔; 光学部件被配置为将探针激光束消逝地耦合到微腔中; 与微腔热接触的吸收体元件; 以及配置成利用自由空间泵浦光束照射所述吸收体元件的光学部件,其中所述吸收体元件构造成从所述自由空间泵浦光束吸收能量,从而产生热量,并将热量传递到所述微腔,由此引起 在至少一个共振频率上移位。 吸收元件可以被构造成在柱的一个端部处形成与微腔的界面区域的柱。 微腔的表面可以基本上不含涂层材料。

    Wavefront synthesizer systems
    68.
    发明授权
    Wavefront synthesizer systems 有权
    波前综合器系统

    公开(公告)号:US09223086B2

    公开(公告)日:2015-12-29

    申请号:US13991853

    申请日:2011-01-21

    Abstract: Wavefront synthesizers and optical switches implemented with wavefront synthesizers are disclosed. In one aspect, a wavefront synthesizer includes a waveguide tree composed a root waveguide that branches into at least two terminus waveguides. The root waveguide is integrated with a source to inject light into the waveguide tree via the root waveguide. The synthesizer includes output couplers located at the ends of the terminus waveguides. Each output coupler outputs a wavefront associated with a portion of the light injected with at least two of the wavefronts overlapping to form at least one beam of light via constructive interference. The synthesizer also includes microring resonators disposed adjacent to the terminus waveguides. Each microring is independently tunable to apply a phase shift in the wavefront output from one of the output couplers to steer the direction of the beam and the at least two wavefronts.

    Abstract translation: 公开了使用波前合成器实现的波前合成器和光开关。 在一个方面中,波前合成器包括一个波导树,它构成一个分支到至少两个末端波导的根波导。 根波导与源集成,以通过根波导将光注入波导树。 合成器包括位于末端波导末端的输出耦合器。 每个输出耦合器输出与通过重叠的至少两个波前注入的光的一部分相关联的波前,以经由建构性干扰形成至少一个光束。 合成器还包括邻近终端波导设置的微环谐振器。 每个微环是独立可调的,以在来自输出耦合器之一的波前输出中施加相移以引导光束的方向和至少两个波前。

    SINGLE MOLECULE SPECTROSCOPY USING PHOTOTHERMAL TUNING OF OPTICAL MICROCAVITIES
    69.
    发明申请
    SINGLE MOLECULE SPECTROSCOPY USING PHOTOTHERMAL TUNING OF OPTICAL MICROCAVITIES 有权
    单光子光谱使用光学微波的光热调谐

    公开(公告)号:US20150362425A1

    公开(公告)日:2015-12-17

    申请号:US14621502

    申请日:2015-02-13

    Abstract: Methods and apparatuses for single particle and single molecule spectroscopy are provided. A method comprises exposing the surface of an optical microcavity characterized by at least one resonance frequency to a sample such that a single particle or a single molecule from the sample adsorbs onto the surface of the microcavity; evanescently coupling a probe laser beam into the microcavity, wherein the wavelength of the probe laser beam substantially matches the at least one resonance frequency; illuminating the surface of the microcavity with a free space pump light beam such that the focal spot of the free space pump light beam substantially overlaps with the single particle or the single molecule; and detecting light from the probe laser beam, wherein the wavelength of the free space pump light beam is that which generates sufficient heat via energy absorbed by the single particle or the single molecule from the free space pump light beam to induce a shift in the at least one resonance frequency, thereby providing a change in an optical characteristic of the detected light from the probe laser beam.

    Abstract translation: 提供单粒子和单分子光谱学的方法和装置。 一种方法包括将特征在于至少一个共振频率的光学微腔的表面暴露于样品,使得来自样品的单个颗粒或单个分子吸附到微腔的表面上; 将探针激光束瞬时耦合到微腔中,其中探测激光束的波长基本上与至少一个谐振频率匹配; 用自由空间泵浦光束照射微腔的表面,使得自由空间泵浦光束的焦斑基本上与单个颗粒或单个分子重叠; 并且检测来自探测激光束的光,其中自由空间泵浦光束的波长是通过单个粒子或单分子从自由空间泵浦光束吸收的能量产生足够热量的波长,以引起在 至少一个谐振频率,从而提供来自探测激光束的检测光的光学特性的变化。

    Tunable multispectral laser source
    70.
    发明授权
    Tunable multispectral laser source 有权
    可调谐多光谱激光源

    公开(公告)号:US09195113B2

    公开(公告)日:2015-11-24

    申请号:US13896142

    申请日:2013-05-16

    Inventor: James A. Cox

    Abstract: An tunable optical frequency comb source includes a linear waveguide having an input leg to couple to a pump laser. A ring microresonator is evanescently coupled to the linear waveguide. The microresonator includes a ring shaped waveguide having a core material with a nonlinear refractive index to provide four-wave mixing to generate a cascade of independent laser beams at frequencies corresponding to the longitudinal modes of the microresonator.

    Abstract translation: 可调谐的光学频率梳状源包括具有输入脚以耦合到泵浦激光器的线性波导。 环形微谐振器湮灭地耦合到线性波导。 微谐振器包括具有非线性折射率的芯材料的环形波导,以提供四波混频以在对应于微谐振器的纵向模式的频率处产生级联的独立激光束。

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