ASE swept source with self-tracking filter for OCT medical imaging
    12.
    发明授权
    ASE swept source with self-tracking filter for OCT medical imaging 有权
    ASE扫描源用于OCT医疗成像的自我跟踪滤波器

    公开(公告)号:US09041936B2

    公开(公告)日:2015-05-26

    申请号:US13960027

    申请日:2013-08-06

    Abstract: An integrated swept wavelength tunable optical source uses a narrowband filtered broadband signal with an optical amplifier and self-tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal. The self-tracking arrangement is used where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.

    Abstract translation: 集成扫描波长可调光源使用窄带滤波宽带信号与光放大器和自跟踪滤波器。 该源包括安装在工作台上的用于产生宽带光源的微型光学平台,可调谐法布里珀罗滤波器,用于对来自宽带源的宽带光进行频谱滤波以产生窄带可调信号,安装在台架上的放大器 ,用于放大可调信号。 自我跟踪装置用于单个可调谐滤波器都产生窄带信号并且对放大的信号进行频谱滤波。 在一些实例中,提供了两级放大。 使用单台实现产生低成本的高性能系统。 例如,不再需要组件之间的极化控制。

    Dielectric-Enhanced Metal Coatings for MEMS Tunable Filters
    13.
    发明申请
    Dielectric-Enhanced Metal Coatings for MEMS Tunable Filters 审中-公开
    用于MEMS可调谐滤波器的介质增强金属涂层

    公开(公告)号:US20150043002A1

    公开(公告)日:2015-02-12

    申请号:US13964169

    申请日:2013-08-12

    Abstract: The present invention concerns the use of hybrid metal-dielectric optical coatings as the end reflectors of laser cavities and/or in the mirror structures used in other optical resonators, such as Fabry-Perot tunable filters, along with the use of such Fabry-Perot tunable filters in wavelength swept sources such as lasers. Hybrid metal-dielectric optical coatings have reflectivity spectra that can be broader than pure dielectric coatings, offer optical reflectivities higher than metal, as high as pure dielectric coatings, eliminate mirror transmission that can cause parasitic light reflections, and use fewer layers and thus have lower mass and higher mechanical resonant frequency for movable mirror applications An important characteristic of these coatings concerns the non-reflected light. Pure dielectric coatings offer high reflectivity, while the non-reflected portion of the light is transmitted by the coating to the substrate, for example. When metal is added to the optical coating, the non-reflected portion of the light is absorbed by the metal and is not transmitted to the substrate or outside the cavity. Hybrid metal-dielectric coatings have broader and more uniform spectral reflection. Tunable lasers with performance enhanced by the hybrid metal-dielectric coatings can be used in optical coherence tomography and spectroscopic analysis applications.

    Abstract translation: 本发明涉及使用混合金属 - 电介质光学涂层作为激光腔的端部反射器和/或用于其它光学谐振器的反射镜结构,例如法布里 - 珀罗可调谐滤光器,以及使用这种法布里 - 珀罗 波长扫描源(例如激光器)中的可调滤波器。 混合金属 - 介电光学涂层具有比纯电介质涂层更宽的反射光谱,提供高于金属的光学反射率,与纯电介质涂层一样高,消除可能引起寄生光反射的镜面透射,并且使用较少的层,因此具有较低的 可移动镜应用的质量和更高的机械共振频率这些涂层的一个重要特征涉及非反射光。 例如,纯电介质涂层提供高反射率,而光的未反射部分由涂层传播到基底。 当金属被添加到光学涂层中时,光的未反射部分被金属吸收,并且不被透射到基底或腔外。 混合金属 - 电介质涂层具有更广泛和更均匀的光谱反射。 通过混合金属 - 电介质涂层提高性能的可调谐激光器可用于光学相干断层扫描和光谱分析应用。

    Silicon optical bench OCT probe for medical imaging
    14.
    发明授权
    Silicon optical bench OCT probe for medical imaging 有权
    硅光学台用于医学成像的OCT探针

    公开(公告)号:US08781287B2

    公开(公告)日:2014-07-15

    申请号:US13946214

    申请日:2013-07-19

    Abstract: An optical probe for emitting and/or receiving light within a body comprises an optical fiber that transmits and/or receives an optical signal, a silicon optical bench including a fiber groove running longitudinally that holds an optical fiber termination of the optical fiber and a reflecting surface that optically couples an endface of the optical fiber termination to a lateral side of the optical bench. The fiber groove is fabricated using silicon anisotropic etching techniques. Some examples use a housing around the optical bench that is fabricated using LIGA or other electroforming technology. A method for forming lens structure is also described that comprises forming a refractive lens in a first layer of a composite wafer material, such as SOI (silicon on insulator) wafers and forming an optical port through a backside of the composite wafer material along an optical axis of the refractive lens. The refractive lens is preferably formed using grey-scale lithography and dry etching the first layer.

    Abstract translation: 用于在体内发射和/或接收光的光学探针包括透射和/或接收光信号的光纤,包括纵向延伸的光纤槽的硅光学台,其保持光纤的光纤终端和反射 表面,其将光纤端接件的端面光学耦合到光学平台的侧面。 使用硅各向异性蚀刻技术制造纤维槽。 一些例子使用使用LIGA或其他电铸技术制造的光学平台周围的外壳。 还描述了一种用于形成透镜结构的方法,其包括在诸如SOI(绝缘体上硅)晶片的复合晶片材料的第一层中形成折射透镜,并沿着光学器件通过复合晶片材料的背面形成光学端口 折射透镜的轴线。 折射透镜优选使用灰度光刻形成并且对第一层进行干蚀刻。

    Integrated Dual Swept Source for OCT Medical Imaging
    16.
    发明申请
    Integrated Dual Swept Source for OCT Medical Imaging 有权
    用于OCT医疗成像的集成双扫描源

    公开(公告)号:US20140168658A1

    公开(公告)日:2014-06-19

    申请号:US14159748

    申请日:2014-01-21

    Abstract: An optical coherence analysis system comprising: a first swept source that generates a first optical signal that is tuned over a first spectral scan band, a second swept source that generates a second optical signal that is tuned over a second spectral scan band, a combiner for combining the first optical signal and the second optical signal to form a combined optical signal, an interferometer for dividing the combined optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample, and a detector system for detecting an interference signal generated from the combined optical signal from the reference arm and from the sample arm.

    Abstract translation: 一种光学相干分析系统,包括:第一扫描光源,其产生在第一光谱扫描带上调谐的第一光信号,产生在第二光谱扫描带上调谐的第二光信号的第二扫描光源, 组合第一光信号和第二光信号以形成组合的光信号;干涉仪,用于将导通到参考反射器的参考臂与通向样本的采样臂之间的组合光信号分开;以及检测器系统,用于检测 由来自参考臂和来自采样臂的组合光信号产生的干扰信号。

    Filtered ASE Swept Source for OCT Medical Imaging
    17.
    发明申请
    Filtered ASE Swept Source for OCT Medical Imaging 有权
    用于OCT医疗成像的过滤ASE扫描源

    公开(公告)号:US20130215432A1

    公开(公告)日:2013-08-22

    申请号:US13847616

    申请日:2013-03-20

    Abstract: An integrated swept wavelength optical source uses a filtered ASE signal with an optical amplifier and tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a first tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal, and a second tunable Fabry Perot filter, installed on the bench, for spectrally filtering the amplified tunable signal from the amplifier. A self-tracking arrangement is also possible where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.

    Abstract translation: 集成扫描波长光源使用经滤波的ASE信号与光放大器和跟踪滤波器。 该源包括安装在工作台上的用于产生宽带光源的微型光学平台,用于产生宽带光源的第一可调谐法布里珀罗滤波器,用于对来自宽带源的宽带光进行频谱滤波以产生窄带可调谐信号,放大器,安装在 用于放大可调信号的工作台,以及安装在工作台上的第二个可调谐法布里珀罗滤波器,用于对来自放大器的放大的可调谐信号进行频谱滤波。 单个可调谐滤波器既可以生成窄带信号又对放大的信号进行频谱滤波,则自我跟踪装置也是可能的。 在一些实例中,提供了两级放大。 使用单台实现产生低成本的高性能系统。 例如,不再需要组件之间的极化控制。

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