Photonic diplex transceiver
    5.
    发明授权
    Photonic diplex transceiver 失效
    光子双工收发器

    公开(公告)号:US5712864A

    公开(公告)日:1998-01-27

    申请号:US616382

    申请日:1996-03-15

    摘要: A semiconductor photonic diplex transceiver includes a laser to generate a first optical signal having a certain wavelength and a photodetector to detect a second optical signal having another wavelength. The diplex transceiver also includes an absorber of the first signal disposed between the laser and the detector which form integral parts of an optical waveguide. The laser generates the first signal in the form of a continuous wave and is disposed between the absorber and a selective modulator of the first signal. This reduces the problems of optical and electrical crosstalk between the transmit and receive functions. Applications include user premises optical fiber transmit/receive equipments.

    摘要翻译: 半导体光子二重收发器包括用于产生具有一定波长的第一光信号的激光器和用于检测具有另一波长的第二光信号的光电检测器。 双工收发器还包括设置在激光器和检测器之间的第一信号的吸收器,其形成光波导的整体部分。 激光器以连续波的形式产生第一信号,并且设置在吸收器和第一信号的选择性调制器之间。 这减少了发射和接收功能之间的光和电串扰的问题。 应用包括用户住宅光纤发射/接收设备。

    Semi conductor optical amplifier
    6.
    发明授权
    Semi conductor optical amplifier 有权
    半导体光放大器

    公开(公告)号:US06310719B1

    公开(公告)日:2001-10-30

    申请号:US09410052

    申请日:1999-10-01

    IPC分类号: H01S300

    CPC分类号: H01S5/5009 H01S5/3201

    摘要: The invention relates to a semi-conductor optical amplifier insensitive to the polarization of light. The active layer (20) of this amplifier is made up of an alternating series of solid sub-layers alternately under tensile stress (21) and compressive stress (22) and having the same forbidden band-width. The sub-layers under tensile stress (21) favour the propagation of the TM mode of polarization of light and the sub-layers under compression (22) favour the propagation of the TE mode of polarization of light. In addition, the thicknesses of the sub-layers have values which ensure equal gains G(TE) and G(TM) for the active layer.

    摘要翻译: 本发明涉及对光的偏振不敏感的半导体光放大器。 该放大器的有源层(20)由拉伸应力(21)和压缩应力(22)交替的交替的固体子层组成,具有相同的禁带宽度。 拉伸应力下的子层(21)有利于光的TM偏振模的传播和压缩下的子层(22)有利于光的TE偏振模的传播。 此外,子层的厚度具有确保有源层的相等增益G(TE)和G(TM)的值。

    Effusion method and an effusion cell for forming molecular beams
    7.
    发明授权
    Effusion method and an effusion cell for forming molecular beams 失效
    用于形成分子束的流出法和渗流池

    公开(公告)号:US5321260A

    公开(公告)日:1994-06-14

    申请号:US922478

    申请日:1992-07-31

    CPC分类号: C30B23/066

    摘要: Primary molecules are formed by sublimation in a sublimation chamber (2), they are then transferred at a transfer flow-rate to a decomposition head (10) at a higher temperature, and they are transformed therein into secondary molecules that are lighter in weight to form molecular beams (16). In accordance with the invention, the transfer flow-rate is adjusted by adjusting an effective vector flow-rate which is the vector flow-rate of a vector gas inserted into the sublimation chamber via a feed tube (26) and sucked out via a suction tube (30). The invention applies, in particular, to making III-V type semiconductor components by molecular beam epitaxy.

    摘要翻译: 通过在升华室(2)中升华形成初级分子,然后以更高的温度将其以转移流速转移到分解头(10),并将它们转化成重量比较轻的二级分子 形成分子束(16)。 根据本发明,通过调节作为通过供给管(26)插入升华室的向量气体的向量流量的有效矢量流量来调节转印流量,并通过抽吸 管(30)。 本发明特别适用于通过分子束外延制造III-V型半导体元件。

    Vacuum evaporation device
    8.
    发明授权
    Vacuum evaporation device 失效
    真空蒸发装置

    公开(公告)号:US4607152A

    公开(公告)日:1986-08-19

    申请号:US634434

    申请日:1984-07-26

    CPC分类号: C23C14/56 C23C14/24

    摘要: A vacuum evaporation device incorporates a main treatment enclosure connected to an auxiliary chamber containing a material evaporation cell. The cell is fixed to a tight bellows displacement member able to displace the cell between a first advanced position towards a main enclosure and a second retracted position. A sealing valve provided with a slide is provided for the main enclosure from the auxiliary chamber, whereby the material of the evaporation cell can thus be changed without placing the main enclosure under atmosphere again. A fixed heating tube, connecting the main enclosure to the auxiliary chamber, has a first end engaged in the main enclosure and a second end issuing into the auxiliary chamber. The second end is provided with an end piece made from a thermally insulating material ensuring mechanical continuity and thermal insulation with the support part and able to bearingly receive the evaporation cell when the latter is in the advanced position. The slide of the sealing valve is inserted between the end piece and the evaporation cell when the latter is in the retracted position, the travel of the cell between these end positions and consequently travel of the bellows being limited to the space necessary for closing the valve.

    摘要翻译: 真空蒸发装置包括连接到包含材料蒸发单元的辅助室的主处理外壳。 电池被固定到能够在朝向主外壳的第一前进位置和第二缩回位置之间移动电池的紧密波纹管移位构件。 从辅助室为主壳体提供了设有滑动件的密封阀,由此可以改变蒸发单元的材料,而不会再将主机壳放置在大气层下。 将主外壳连接到辅助室的固定加热管具有接合在主外壳中的第一端和发送到辅助室中的第二端。 第二端设置有由绝热材料制成的端部件,其确保与支撑部件的机械连续性和热绝缘性,并且能够在后者位于前进位置时轴承地接纳蒸发单元。 密封阀的滑动件在后端处于缩回位置时插入在端件和蒸发单元之间,因此在这些端部位置之间的单元行程和波纹管的行程被限制到关闭阀门所需的空间 。

    Prescription mirror
    9.
    发明授权
    Prescription mirror 失效
    处方镜

    公开(公告)号:US06441969B1

    公开(公告)日:2002-08-27

    申请号:US09442614

    申请日:1999-11-18

    IPC分类号: G02B1700

    摘要: A common corrective eyeglass lens blank and a common mirror, Plano or magnifying, are brought together in a “compact” (small sized) construction and assembly to provide the very thing long desired in mirrors and not elsewhere found—corrected vision and ample working room between the eyes and any lenses, at the same time, at reasonable cost, in an elegance of implementation.

    摘要翻译: 常见的矫正眼镜镜片坯料和普通镜子或普通镜子以“紧凑型”(小尺寸)结构和组件结合在一起,以提供镜子中长期需要的东西,而不在其他地方找到矫正视力和充足的工作室 在眼睛和任何镜头之间,同时,以合理的成本,优雅的实施。