Optical module including an optically lossy component and an erbium-doped waveguide for insertion between stages of an optical amplifier
    1.
    发明授权
    Optical module including an optically lossy component and an erbium-doped waveguide for insertion between stages of an optical amplifier 有权
    光学模块包括光学损耗分量和用于在光放大器的级之间插入的掺铒波导

    公开(公告)号:US06961502B1

    公开(公告)日:2005-11-01

    申请号:US10279479

    申请日:2002-10-24

    摘要: An optical module is provided for performing a prescribed function such as dispersion compensation, for example. The optical module is to be integrated between stages of a multi-stage rare-earth doped optical amplifier. The module includes an input port for receiving optical energy from one stage of the rare-earth doped optical amplifier and a rare-earth doped planar waveguide coupled to the input port. An optically lossy, passive element is provided for performing the prescribed function. The optically lossy, passive element is coupled to the planar waveguide for receiving optical energy therefrom. An output port is coupled to the optically lossy, passive element for providing optical energy to another stage of the rare-earth doped optical amplifier. The rare-earth doped planar waveguide has a first unsaturated absorption spectrum and the rare-earth doped optical amplifier has a second unsaturated absorption spectrum such that the ratio of the first to the second absorption spectrum is substantially wavelength independent within the spectral range of incoming and outgoing optical energy. The rare-earth doped planar waveguide has a length determined at least in part from a value of optical loss in the passive element and characteristics of the rare-earth doped optical amplifier.

    摘要翻译: 例如,提供了用于执行诸如色散补偿的规定功能的光学模块。 光模块将被集成在多级稀土掺杂光放大器的级之间。 该模块包括用于从稀土掺杂光放大器的一级接收光能的输入端口和耦合到输入端口的稀土掺杂平面波导。 提供光学有损的无源元件用于执行规定的功能。 光学有损的无源元件耦合到平面波导以从其接收光能。 输出端口耦合到光学有损耗的无源元件,用于向稀土掺杂光放大器的另一级提供光能。 稀土掺杂平面波导具有第一不饱和吸收光谱,并且稀土掺杂光放大器具有第二不饱和吸收光谱,使得第一和第二吸收光谱的比率在入射光谱的光谱范围内基本上与波长无关, 输出光能。 稀土掺杂的平面波导的长度至少部分地取决于无源元件中的光损耗值和稀土掺杂光放大器的特性。

    Method of making a planar optical amplifier
    2.
    发明授权
    Method of making a planar optical amplifier 失效
    制作平面光放大器的方法

    公开(公告)号:US5200029A

    公开(公告)日:1993-04-06

    申请号:US803290

    申请日:1991-12-04

    IPC分类号: H01S3/063 H01S3/16

    CPC分类号: H01S3/063 H01S3/1608

    摘要: An active optical device comprises a glass, waveguiding structure disposed on a substantially planar principal surface of a substrate. The structure includes a silica-based, erbium-doped active core. The active core has an erbium-to-silicon atomic ratio of at least about 0.01, an absolute erbium concentration of at least about 1.4.times.10.sup.20 atoms per cubic centimeter, and a radiative lifetime of the erbium lasing level of at least about 7 milliseconds. Also disclosed is a method for forming an active optical device, including the step of depositing an erbium-doped active core by sputtering.

    摘要翻译: 有源光学器件包括设置在基板的基本平坦的主表面上的玻璃波导结构。 该结构包括二氧化硅基铒掺杂活性核。 活性芯的铒至硅原子比至少约为0.01,绝对铒浓度至少约为1.4×1020原子/立方厘米,铒激发光的辐射寿命至少约为7毫秒。 还公开了一种用于形成有源光学器件的方法,包括通过溅射沉积铒掺杂的有源核的步骤。

    Electron beam pumped rod-like light emitters
    4.
    发明授权
    Electron beam pumped rod-like light emitters 失效
    电子束泵杆状发光体

    公开(公告)号:US4695762A

    公开(公告)日:1987-09-22

    申请号:US749928

    申请日:1985-06-28

    摘要: The luminescent screen of a cathode ray tube includes an array of monocrystalline or amorphous phosphor rod-like elements which are covered with a reflective coating except for one end of each element which serves as an output face. The phenomenon of the light trapping is advantageously exploited to achieve enhanced brightness. The screen is illuminated with an electron beam which has an essentially oblong cross section and which is oriented along the elongated dimension of the elements. In one embodiment the elements comprise epitaxial Lu.sub.3 Al.sub.3 Ga.sub.2 O.sub.12 :Ce on the top of a YAG substrate, and a light absorbing layer of Lu.sub.3 Al.sub.3.5 Fe.sub.1.5 O.sub.12 is formed on the bottom of the substrate. A printer utilizing such a CRT is described. Also described is a configuration in which each of the rod-like elements functions as a laser.

    摘要翻译: 阴极射线管的荧光屏包括单晶或非晶磷棒状元件的阵列,除了用作输出面的每个元件的一端之外,该阵列被反射涂层覆盖。 有利地利用光捕获的现象来实现增强的亮度。 屏幕被电子束照射,该电子束具有基本上长方形的横截面并且沿着元件的细长尺寸定向。 在一个实施例中,元件包括在YAG衬底的顶部上的外延Lu3Al3Ga2O12:Ce,并且在衬底的底部上形成Lu3Al3.5Fe1.5O12的光吸收层。 描述了利用这种CRT的打印机。 还描述了其中每个棒状元件用作激光器的配置。

    Electron beam pumped mosaic array of light emitters
    5.
    发明授权
    Electron beam pumped mosaic array of light emitters 失效
    电子束泵浦马赛克阵列的发光体

    公开(公告)号:US4626739A

    公开(公告)日:1986-12-02

    申请号:US609000

    申请日:1984-05-10

    申请人: Joseph Shmulovich

    发明人: Joseph Shmulovich

    CPC分类号: H01J29/28 H01J29/24 H01J29/30

    摘要: In a CRT system the luminescent screen includes an ordered array of rows and columns of phosphor elements, illustratively made of single crystal material. Each element is surrounded on all sides (except the light output face) by reflective material. To enhance light extraction efficiency, the output face may be textured. An electron beam is made incident on the output face of selected ones of the elements and scans in two dimensions across the plane of the elements. Also described is an arrangement whereby the electron beam is made incident on the back surface of the elements opposite the output face.

    摘要翻译: 在CRT系统中,荧光屏包括荧光体元件的行和列的有序阵列,示例性地由单晶材料制成。 每个元件都被反光材料包围(除了光输出面)。 为了提高光提取效率,输出面可以是纹理的。 使电子束入射到所选择的元件的输出面上,并且跨过元件的平面以二维扫描。 还描述了使电子束入射到与输出面相对的元件的背面上的布置。

    Dispersion compensator using Bragg gratings in transmission
    6.
    发明授权
    Dispersion compensator using Bragg gratings in transmission 失效
    色散补偿器在传输中使用布拉格光栅

    公开(公告)号:US06501874B1

    公开(公告)日:2002-12-31

    申请号:US09963102

    申请日:2001-09-25

    IPC分类号: G02B642

    摘要: An apparatus is provided to compensate for dispersion in a transmission medium. The apparatus includes an input port for receiving a WDM optical signal having a plurality of signal wavelengths and a first Bragg transmission grating receiving the WDM optical signal from the input port. The first Bragg transmission grating has non-zero dispersion at at least one of the signal wavelengths. The first Bragg transmission grating also has a Bragg wavelength that is chosen so that all of the plurality of signal wavelengths lie outside of a reflection band of the first Bragg transmission grating. A second Bragg transmission grating, which is optically coupled to the first Bragg transmission grating, has a non-zero dispersion at at least one of the signal wavelengths. The second Bragg transmission grating also has a Bragg wavelength that is selected so that all of the plurality of signal wavelengths lie outside of a reflection band of the second Bragg transmission grating. Finally, an output port is provided for receiving the optical signal from the second Bragg grating and communicating the optical signal to an external source.

    摘要翻译: 提供了一种用于补偿传输介质中的色散的装置。 该装置包括用于接收具有多个信号波长的WDM光信号的输入端口和从输入端口接收WDM光信号的第一布拉格透射光栅。 第一布拉格透射光栅在至少一个信号波长处具有非零色散。 第一布拉格透射光栅还具有布拉格波长,其被选择为使得所有多个信号波长位于第一布拉格透射光栅的反射带的外侧。 光耦合到第一布拉格透射光栅的第二布拉格透射光栅在至少一个信号波长处具有非零色散。 第二布拉格透射光栅还具有选择的布拉格波长,使得所有多个信号波长位于第二布拉格透射光栅的反射带的外侧。 最后,提供输出端口用于从第二布拉格光栅接收光信号并将光信号传送到外部源。

    Method of making an article comprising a silicon body
    10.
    发明授权
    Method of making an article comprising a silicon body 失效
    制造包含硅体的制品的方法

    公开(公告)号:US5391269A

    公开(公告)日:1995-02-21

    申请号:US84689

    申请日:1993-06-29

    CPC分类号: H01L21/3063 Y10T29/49169

    摘要: We have found that etching of a body that comprises exposed Si as well as a Ti-comprising metal layer (e.g., a patterned Ti/Pt layer) in an amine-based anisotropic etchant for Si (e.g., 100.degree. C. EDP) frequently results in undesirable changes in the Ti-comprising metal layer. We have also found that the changes can be substantially reduced or eliminated by electrolytic means, namely, by making the metal layer the anode in an electrolytic cell that contains the etchant.

    摘要翻译: 我们已经发现,在基于胺的各向异性蚀刻剂(例如,100℃EDP)中经常蚀刻包括暴露的Si以及包含Ti的金属层(例如,图案化的Ti / Pt层)的主体 导致含Ti的金属层的不期望的变化。 我们还发现,通过电解方式,即通过在含有蚀刻剂的电解槽中使金属层成为阳极,可以显着地减少或消除这些变化。