Tunable optic fiber bandpass filter using flexural acoustic waves
    191.
    发明授权
    Tunable optic fiber bandpass filter using flexural acoustic waves 失效
    可弯曲光纤带通滤波器使用弯曲声波

    公开(公告)号:US6151427A

    公开(公告)日:2000-11-21

    申请号:US294390

    申请日:1999-04-20

    Abstract: The present invention is a tunable optic fiber bandpass filter using flexural acoustic waves that includes an optic fiber; a first silica horn; a first acoustic transducer; a first signal generator; a first acoustic absorber; a core blocker; a second acoustic absorber; a second silica horn; a second acoustic transducer; and a second signal generator. The method of the present invention is receiving an optic signal in a core of an optic fiber; inducing a first flexural acoustic wave in the optic fiber where there is no buffer coating; absorbing the first flexural acoustic wave after it has traveled a distance down the optic fiber; causing user-definable wavelengths of the optic signal to exit the core and enter the cladding of the optic fiber; blocking wavelengths of the optic signal that remain in the core of the optic fiber; inducing a second flexural acoustic wave in the optic fiber where there is no buffer coating; absorbing the second flexural acoustic wave after it has traveled a distance down the optic fiber; and causing user-definable wavelengths of the optic signal to exit the cladding and enter the core of the optic fiber. One signal generator may be used to induce both flexural acoustic waves. In an alternate embodiment, one absorber may be used.

    Abstract translation: 本发明是一种使用包括光纤的弯曲声波的可调谐光纤带通滤波器; 第一个硅胶喇叭 第一声​​换能器; 第一信号发生器; 第一声​​吸收器; 核心阻滞剂 第二吸声器; 第二个硅胶喇叭; 第二声换能器; 和第二信号发生器。 本发明的方法是在光纤的核心中接收光信号; 在没有缓冲涂层的光纤中引起第一弯曲声波; 在沿着光纤行进一段距离之后吸收第一挠曲声波; 导致光信号的用户可定义的波长离开芯并进入光纤的包层; 阻挡保留在光纤芯中的光信号的波长; 在没有缓冲涂层的光纤中引起第二弯曲声波; 在第二挠曲声波沿着光纤行进一段距离之后吸收; 并使得光信号的用户可定义的波长离开包层并进入光纤的核心。 一个信号发生器可用于诱发两个弯曲声波。 在替代实施例中,可以使用一个吸收器。

    Optical filter device
    192.
    发明授权
    Optical filter device 失效
    光滤波器

    公开(公告)号:US5930435A

    公开(公告)日:1999-07-27

    申请号:US737985

    申请日:1997-05-01

    Abstract: Passive, self-adjusting and tracking optical wavelength filters are described. The filters are absorptive and can be of either transmissive or reflective type. The filters comprise an unpumped doped optical waveguide configured so that signals of different wavelength are spatially decoupled to some extent. The self-adjustment of the filter centre wavelength is achieved by the combined effects of the power-dependent saturable absorption, provided by an appropriate dopant, and partial longitudinal hole burning provided by the spatial decoupling of the different wavelengths. External cavity lasers using this type of filter in the external cavity are also described. This external cavity configuration can provide stable single frequency operation of, for example, a semiconductor laser. By using a saturable absorber for the external cavity (e.g. an erbium doped fibre), longitudinal mode-hopping can be suppressed, ensuring single frequency operation.

    Abstract translation: PCT No.PCT / GB95 / 01141 Sec。 371日期1997年5月1日 102(e)日期1997年5月1日PCT提交1995年5月19日PCT公布。 公开号WO95 / 32451 1995年11月30日,描述了无源自调整和跟踪光波长滤波器。 过滤器是吸收性的,并且可以是透射型或反射型。 滤波器包括一个未使用的掺杂光波导,其被配置成使得不同波长的信号在一定程度上在空间上解耦。 通过由适当的掺杂剂提供的功率依赖的可饱和吸收和通过不同波长的空间去耦提供的部分纵向孔燃烧的组合效应来实现滤波器中心波长的自调节。 还描述了在外腔中使用这种类型的滤波器的外腔激光器。 该外部空腔配置可以提供例如半导体激光器的稳定的单频操作。 通过使用用于外部空腔的可饱和吸收体(例如掺铒光纤),可以抑制纵向跳跃,确保单频操作。

    Combined supercontinuum source
    196.
    发明授权
    Combined supercontinuum source 有权
    组合超连续谱源

    公开(公告)号:US09570876B2

    公开(公告)日:2017-02-14

    申请号:US15011609

    申请日:2016-01-31

    Applicant: Fianium Ltd.

    Abstract: A supercontinuum optical pulse source provides a combined supercontinuum. The supercontinuum optical pulse source comprises one or more seed pulse sources, and first and second optical amplifiers arranged along first and second respective optical paths. The first and second optical amplifiers are configured to amplify one or more optical signals generated by said one or more seed pulse sources. The supercontinuum optical pulse source further comprises a first microstructured light-guiding member arranged along the first optical path and configured to generate supercontinuum light responsive to an optical signal propagating along said first optical path, and a second microstructured light-guiding member arranged along the second optical path and configured to generate supercontinuum light responsive to an optical signal propagating along said second optical path. The supercontinuum optical pulse source further comprises a supercontinuum-combining member to combine supercontinuum generated in at least the first and second microstructured light-guiding members to form a combined supercontinuum. The supercontinuum-combining member comprises an output fiber, wherein the output fiber comprises a silica-based multimode optical fiber supporting a plurality of spatial modes at one or more wavelengths of the combined supercontinuum.

    Abstract translation: 超连续光学脉冲源提供组合超连续谱。 超连续谱光脉冲源包括一个或多个种子脉冲源,以及沿第一和第二相应光路布置的第一和第二光放大器。 第一和第二光放大器被配置为放大由所述一个或多个种子脉冲源产生的一个或多个光信号。 超连续光学光脉冲源还包括沿着第一光路布置的第一微结构光导元件,其被配置为响应于沿着所述第一光路传播的光信号产生超连续光,以及沿着第二光路布置的第二微结构光导元件 并且被配置为响应于沿着所述第二光路传播的光信号产生超连续光。 超连续谱光脉冲源还包括超连续真空组合构件,以组合在至少第一和第二微结构导光构件中产生的超连续谱,以形成组合超连续谱。 超连续真空组合构件包括输出光纤,其中输出光纤包括在组合超连续谱的一个或多个波长处支持多个空间模式的基于二氧化硅的多模光纤。

    Optical mode conversion by nonlinear effects
    197.
    发明授权
    Optical mode conversion by nonlinear effects 有权
    通过非线性效应进行光学模式转换

    公开(公告)号:US09482817B2

    公开(公告)日:2016-11-01

    申请号:US14362456

    申请日:2012-12-06

    Applicant: OFS Fitel, LLC

    Abstract: Embodiments of the present invention generally relate to optical mode conversion by nonlinear effects. More specifically, embodiments of the present invention relate to nonlinear mode conversion utilizing intermodal four-wave mixing to convert light between modes having different wavelengths for complex applications. In one embodiment of the present invention, a fiber comprises an input end for receiving light in a first mode at a first wavelength, and an output end for outputting light in a desired second mode at a desired second wavelength, wherein the first wavelength and the second wavelength are not the same. In many embodiments, the fiber comprises a higher-order mode fiber.

    Abstract translation: 本发明的实施例一般涉及通过非线性效应的光学模式转换。 更具体地,本发明的实施例涉及利用联合四波混频以在复杂应用中具有不同波长的模式之间转换光的非线性模式转换。 在本发明的一个实施例中,光纤包括用于以第一波长接收第一模式的光的输入端和用于以期望的第二波长以期望的第二模式输出光的输出端,其中第一波长和 第二波长不一样。 在许多实施例中,光纤包括高阶模式光纤。

    Optical systems
    198.
    发明授权
    Optical systems 有权
    光学系统

    公开(公告)号:US09158177B2

    公开(公告)日:2015-10-13

    申请号:US13988938

    申请日:2011-11-24

    Abstract: A supercontinuum optical source comprises a laser source apparatus comprising at least one laser, the laser source apparatus configured for providing first and second signals; a modulator apparatus downstream of at least one laser of the laser source apparatus for modulating at least one of the first and second signals, the modulator apparatus including at least one modulator; a combiner downstream of the modulator apparatus for combining the first and second signals; an amplifier downstream of the combiner for amplifying the first and second signals after combination; a nonlinear element downstream of the amplifier for receiving the first and second signals after amplification, the nonlinear optical element providing spectral broadening responsive to the first signal and wherein the second signal does not substantially contribute to spectral broadening; and an output for outputting spectrally broadened light from the optical supercontinuum source.

    Abstract translation: 超连续谱光源包括激光源装置,其包括至少一个激光器,所述激光源装置被配置为提供第一和第二信号; 在所述激光源装置的至少一个激光器的下游的调制器装置,用于调制所述第一和第二信号中的至少一个,所述调制器装置包括至少一个调制器; 调制器装置下游的组合器,用于组合第一和第二信号; 组合器下游的放大器,用于在组合之后放大第一和第二信号; 所述放大器下游的非线性元件用于在放大后接收第一和第二信号,所述非线性光学元件响应于所述第一信号提供频谱展宽,并且其中所述第二信号基本上不对频谱展宽有贡献; 以及用于从光超连续光源输出光谱变宽的光的输出。

    High voltage photo-switch package module having encapsulation with profiled metallized concavities
    200.
    发明授权
    High voltage photo-switch package module having encapsulation with profiled metallized concavities 有权
    高压光开关封装模块,具有异型金属化凹槽的封装

    公开(公告)号:US09025919B2

    公开(公告)日:2015-05-05

    申请号:US13657746

    申请日:2012-10-22

    Abstract: A photo-conductive switch package module having a photo-conductive substrate or wafer with opposing electrode-interface surfaces metalized with first metallic layers formed thereon, and encapsulated with a dielectric encapsulation material such as for example epoxy. The first metallic layers are exposed through the encapsulation via encapsulation concavities which have a known contour profile, such as a Rogowski edge profile. Second metallic layers are then formed to line the concavities and come in contact with the first metal layer, to form profiled and metalized encapsulation concavities which mitigate enhancement points at the edges of electrodes matingly seated in the concavities. One or more optical waveguides may also be bonded to the substrate for coupling light into the photo-conductive wafer, with the encapsulation also encapsulating the waveguides.

    Abstract translation: 一种光电导体开关封装模块,其具有光导电衬底或晶片,其上形成有与其上形成有第一金属层的金属化的对置电极界面,并用诸如环氧树脂的电介质封装材料封装。 第一金属层通过具有已知轮廓轮廓(例如Rogowski边缘轮廓)的封装凹部通过封装曝光。 然后形成第二金属层以使凹部线形并与第一金属层接触,以形成异形和金属化的封装凹部,其减轻配合地位于凹部中的电极的边缘处的增强点。 也可以将一个或多个光波导接合到基板上,以将光耦合到光导晶片中,同时封装还封装波导。

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