Interleavers for AWGs
    92.
    发明授权
    Interleavers for AWGs 有权
    AWG的交织器

    公开(公告)号:US06832027B2

    公开(公告)日:2004-12-14

    申请号:US10323355

    申请日:2002-12-18

    IPC分类号: G02B634

    摘要: A system includes a plurality of AWGs, wherein one of the AWGs receives an input signal. The AWGS are divided amongst a first selective group of the AWGs providing even-numbered channel outputs associated with an even-numbered selection of the input signal, and a second selective group of the AWGs providing odd-numbered channel outputs associated with an odd-numbered selection of the input signal. An interleaver arrangement includes a plurality of ring structures so as to provide appropriate filtering characteristics for the even-numbered channel outputs and odd-numbered channel outputs.

    摘要翻译: 一种系统包括多个AWG,其中一个AWG接收输入信号。 AWGS被划分为提供与输入信号的偶数选择相关联的偶数频道输出的AWG的第一选择组,以及提供与奇数编号的奇数编号的奇数编号的频道输出相关联的AWG的第二选择组 选择输入信号。 交织器装置包括多个环形结构,以便为偶数频道输出和奇数号频道输出提供适当的滤波特性。

    Silicon solar cell with germanium backside solar cell
    93.
    发明授权
    Silicon solar cell with germanium backside solar cell 失效
    硅太阳能电池与锗背面太阳能电池

    公开(公告)号:US06743974B2

    公开(公告)日:2004-06-01

    申请号:US10140640

    申请日:2002-05-08

    IPC分类号: H01L3106

    摘要: A multijunction solar cell comprising a silicon solar cell with a germanium solar cell formed on the backside of the silicon solar cell. The silicon solar cell and germanium solar cell are directly coupled via a p-p junction to inactivate interface dislocations. Preferably, the silicon solar cell comprises a p++ type silicon layer; an intrinsic silicon layer formed on the p++ type silicon layer; an n++ type silicon layer formed on the intrinsic type silicon layer; and a p-type silicon layer formed on the n++ type silicon layer. The germanium solar cell preferably comprises an n-type germanium layer; and a p-type germanium layer form on the n-type germanium layer. The p-type germanium layer is coupled to the p++ type silicon layer.

    摘要翻译: 一种多结太阳能电池,包括形成在硅太阳能电池的背面上的锗太阳能电池的硅太阳能电池。 硅太阳能电池和锗太阳能电池通过p-p接头直接耦合以钝化界面位错。 优选地,硅太阳能电池包括p ++型硅层; 形成在p ++型硅层上的本征硅层; 形成在本征型硅层上的n ++型硅层; 以及形成在n ++型硅层上的p型硅层。 锗太阳能电池优选包括n型锗层; 和在n型锗层上形成p型锗层。 p型锗层与p ++型硅层耦合。

    Mode transformer between low index difference waveguide and high index difference waveguide
    94.
    发明授权
    Mode transformer between low index difference waveguide and high index difference waveguide 失效
    低折射率差分波导与高折射率差分波导之间的模式变换器

    公开(公告)号:US06697551B2

    公开(公告)日:2004-02-24

    申请号:US09978310

    申请日:2001-06-26

    IPC分类号: G02B626

    摘要: A mode transformer that enables low-loss coupling between optical modes of two waveguides with different index difference. The mode size and the effective index are gradually changed between two waveguides to gradually transform the mode shape, size, and speed with minimum power loss. The mode transformer is useful for coupling the mode of an optical fiber waveguide with low index difference to the mode of a planar high index difference waveguide, and vice versa.

    摘要翻译: 一种模式变压器,可实现具有不同折射率差的两个波导的光模式之间的低损耗耦合。 模式尺寸和有效指数在两个波导之间逐渐变化,以最小功率损耗逐渐转换模式形状,尺寸和速度。 模式变压器可用于将具有低折射率差的光纤波导的模式耦合到平面高折射率差分波导的模式,反之亦然。

    Microcavity amplifiers
    96.
    发明授权

    公开(公告)号:US06567209B2

    公开(公告)日:2003-05-20

    申请号:US09862965

    申请日:2001-05-22

    IPC分类号: H01S305

    摘要: A waveguide for amplifying electromagnetic radiation of a characteristic wavelength includes a first reflector, a second reflector, and a gain medium having a characteristic wavelength of emission disposed between the first and second reflectors. The first and second reflectors are spaced apart from each other to form a microcavity which is off-resonance with respect to the characteristic wavelength of light emitted by the excited gain medium.

    Photo-induced temperature gradient zone melting
    98.
    发明授权
    Photo-induced temperature gradient zone melting 失效
    光诱导温度梯度区熔化

    公开(公告)号:US4257824A

    公开(公告)日:1981-03-24

    申请号:US62350

    申请日:1979-07-31

    摘要: A temperature gradient zone melting process is disclosed wherein the temperature gradient is established substantially across only the molten zone by preferentially heating the molten zone. In a specific embodiment, the mechanism for inputting heat to the molten zone involves exposing the substrate to optical radiation of a wavelength and magnitude for which the molten zone is absorptive and the remainder of the body is transparent. The molten zone thereby migrates through the body toward the source of optical radiation.

    摘要翻译: 公开了一种温度梯度区熔融方法,其中通过优先加热熔融区域,基本上仅在熔融区域上建立温度梯度。 在具体实施例中,用于向熔融区域输入热量的机构包括使基板暴露于熔融区域吸收的波长和幅度的光辐射,并且身体的其余部分是透明的。 熔融区由此通过身体向光辐射源移动。