Electro-optic modulator having high bandwith and low drive voltage
    91.
    发明公开
    Electro-optic modulator having high bandwith and low drive voltage 审中-公开
    Elektrooptischer调制器mit hoher Bandbreite und niedriger Steuerspannung

    公开(公告)号:EP1258772A1

    公开(公告)日:2002-11-20

    申请号:EP01111643.1

    申请日:2001-05-14

    IPC分类号: G02F1/035

    CPC分类号: G02F1/0356 G02F1/2255

    摘要: A high-speed external optical modulator formed on a lithium niobate substrate has a diffused optical waveguide, a surface buffer layer, and electrodes for applying modulating RF energy. The electrodes are electroplated in at least two steps, resulting in a top co-planar waveguide structure lying on a second one. Low driving voltage is achieved through selection of the width, position, and dimension of the lower hot and ground electrodes. The upper ground electrodes and, preferably, also the upper hot electrode, are narrower in width than the corresponding lower electrodes, which helps to provide good velocity matching, good impedance values, and low electrical losses.

    摘要翻译: 形成在铌酸锂基板上的高速外部光学调制器具有扩散光波导,表面缓冲层和用于施加调制RF能量的电极。 电极以至少两个步骤电镀,导致位于第二个上的顶部共面波导结构。 通过选择下部热接地电极的宽度,位置和尺寸来实现低驱动电压。 上接地电极,最好是上热电极的宽度比相应的下电极窄,这有助于提供良好的速度匹配,良好的阻抗值和低的电损耗。

    Integrated optical device comprising an adiabatic junction
    93.
    发明公开
    Integrated optical device comprising an adiabatic junction 审中-公开
    Integrierte optische Vorrichtung mit einer adiabatischen Verzweigung

    公开(公告)号:EP1239311A1

    公开(公告)日:2002-09-11

    申请号:EP01105257.8

    申请日:2001-03-05

    IPC分类号: G02B6/125

    摘要: An optical waveguide device comprises at least one Y-junction integrated on a planar substrate. The junction comprises a first (1), a second (3) and a third (4) optical waveguide extending on the said substrate, and a transition portion (2), in which the second and third waveguides branch from the first waveguide, comprising a truncation (5) of predetermined width. At the position of the truncation, the width of the first waveguide is less than the sum of widths of the second waveguide, the third waveguide and the truncation. The first optical waveguide extends into the transition portion up to the bifurcation with its width essentially constant.

    摘要翻译: 光波导器件包括集成在平面衬底上的至少一个Y形结。 所述接合部包括在所述衬底上延伸的第一(1),第二(3)和第三(4)光波导以及其中所述第二和第三波导从所述第一波导分支的过渡部分(2),包括 具有预定宽度的截头(5)。 在截断的位置处,第一波导的宽度小于第二波导,第三波导和截头的宽度之和。 第一光波导延伸到过渡部分直到分叉,其宽度基本恒定。

    Package with thermoelectric cooler
    94.
    发明公开
    Package with thermoelectric cooler 审中-公开
    包装热电

    公开(公告)号:EP1220391A1

    公开(公告)日:2002-07-03

    申请号:EP00128600.4

    申请日:2000-12-28

    发明人: Shaw, Mark Andrew

    IPC分类号: H01S5/022 H01L23/02

    摘要: The invention relates to a method for electrically connecting a thermoelectric cooler within a package to external terminal pins through at least a connecting lead, said method comprising the steps of:

    (a) providing at least a metallised pad at a surface of the thermoelectric cooler;
    (b) bonding one end of said connecting lead to the said metallised pad of the thermoelectric cooler;
    (c) bonding the other end of said connecting lead to the external terminal pins,
    wherein bonding of step (c) uses the parallel gap welding technique. Connecting leads can be either ribbons or wires.

    摘要翻译: 本发明涉及一种用于通过至少一个连接引线将封装内的热电冷却器电连接到外部端子引脚的方法,所述方法包括以下步骤:(a)在热电冷却器的表面处提供至少一个金属化焊盘; (b)将所述连接引线的一端接合到所述热电冷却器的所述金属化焊盘; (c)将所述连接引线的另一端接合到外部端子引脚,其中步骤(c)的结合使用平行间隙焊接技术。 连接导线可以是丝带或导线。

    Temperature-stabilized optical amplifier and method for temperature-stabilizing an optical amplifier
    95.
    发明公开
    Temperature-stabilized optical amplifier and method for temperature-stabilizing an optical amplifier 审中-公开
    温度稳定的光放大器和温度的方法稳定的光放大器

    公开(公告)号:EP1206016A1

    公开(公告)日:2002-05-15

    申请号:EP00124835.0

    申请日:2000-11-14

    IPC分类号: H01S3/067

    摘要: A temperature-stabilized optical amplifier (100) comprises at least an erbium-doped waveguide (101) for amplifying optical signals; at least a first and a second pump sources (103, 104) for generating respective pump beams at a first and, respectively, a second pump wavelength (λ 1 , λ 2 ), said first and second pump wavelength being lower and, respectively, higher than 978 nm at an intermediate temperature of a predetermined range of temperature, and being subjected to drift as a consequence of temperature variations; and a pump distribution device (105), optically coupled to said pump sources for receiving said pump beams, and optically coupled to said at least an erbium-doped waveguide for feeding to said at least an erbium-doped waveguide a mixed pump radiation comprising at least a power fraction of each of said pump beams.

    摘要翻译: 温度稳定的光放大器(100)包括至少对放大光信号的掺铒波导(101); 至少一个第一和一个第二泵源(103,104),用于产生respectivement泵浦光束在第一和分别的第二泵浦波长(波长1,λ-2),所述第一和第二泵浦波长分别为下限和, 在在温度的预定范围内的中间温度,并受到漂移,温度变化的结果高于978纳米; 和泵分配装置(105),光学耦合到所述泵浦源用于接收所述泵浦光束,并光学耦合到所述至少掺铒波导用于至少在掺铒波导供给到所述混合泵辐射在包括 至少每个所述泵浦光束的的功率分数。