Electrooptical switch with separate detector and modulator modules
    1.
    发明授权
    Electrooptical switch with separate detector and modulator modules 失效
    电光开关具有独立的检测器和调制器模块

    公开(公告)号:US4985621A

    公开(公告)日:1991-01-15

    申请号:US336109

    申请日:1989-04-11

    IPC分类号: G02F3/02 H01L27/15 H03K17/785

    摘要: An electrooptical switch for modulating a bias light beam in response to a control beam. The switch includes a modulator for modulating the bias beam to produce an output light beam therefrom, the modulator having a variable transmissivity; a detector module for receiving the control beam and generating a control signal therefrom, the detector module exhibiting switching operation in response to the control beam; and an amplifier for amplifiying the control signal to modulate the transmissivity of the modulator.

    摘要翻译: 一种用于响应于控制光束调制偏光束的电光开关。 开关包括用于调制偏置光束以从其产生输出光束的调制器,调制器具有可变的透射率; 检测器模块,用于接收所述控制光束并从其产生控制信号,所述检测器模块响应于所述控制光束而呈现切换操作; 以及用于放大控制信号以调制调制器的透射率的放大器。

    Harmonic multiplier using resonant tunneling device
    2.
    发明授权
    Harmonic multiplier using resonant tunneling device 失效
    使用谐振隧穿装置的谐波乘法器

    公开(公告)号:US4831340A

    公开(公告)日:1989-05-16

    申请号:US142741

    申请日:1988-01-11

    IPC分类号: H03B19/16

    CPC分类号: H03B19/16 B82Y10/00

    摘要: An harmonic multiplier comprising a resonant-tunneling diode responsive to a fundamental frequency source oscillator for generating odd harmonics of said fundamental frequency. The resonant-tunneling diode has a current/voltage characteristics curve exhibiting antisymmetry about a zero-volt, zero-current origin and negative differential resistance with high current peaks and low current valleys.

    摘要翻译: 一种谐波乘法器,包括响应于基频振荡器的谐振隧穿二极管,用于产生所述基频的奇次谐波。 谐振隧道二极管具有电流/电压特性曲线,显示关于零电压,零电流原点和具有高电流峰值和低电流谷值的负差分电阻的反对称性。

    Tunneling transfer devices
    3.
    发明授权
    Tunneling transfer devices 失效
    隧道传输装置

    公开(公告)号:US4745452A

    公开(公告)日:1988-05-17

    申请号:US35222

    申请日:1987-04-06

    摘要: Coupled quantum wells in which charge carriers shift from well to well by means of tunneling transfer. The quantum wells are created by disposing a material with lower carrier energy between layers of material with higher carrier energy. The spacing between wells is thin enough to allow tunneling transfer. The coupling of the wells displaces energy levels so that a system of N coupled wells has a spectrum of N energy levels. Under the proper conditions, transistions from one energy level to another result in the shift of charge carriers from one well to another. Because the tunneling transfer process is very fast, electronic devices capable of operating at terahertz frequencies are possible. Transistors, lasers, and detectors of electromagnetic radiation employing coupled quantum wells are disclosed.

    摘要翻译: 耦合量子阱,其中电荷载体通过隧道传输从阱迁移到阱。 通过在具有较高载流子能量的材料层之间设置具有较低载体能量的材料来产生量子阱。 井之间的间距足够薄以允许隧道传输。 井的耦合取代能级,使得N个耦合阱的系统具有N个能级的频谱。 在适当的条件下,从一个能级到另一个能级的转移导致电荷载体从一个井转移到另一个井。 由于隧道传输过程非常快,能够以太赫兹频率工作的电子设备是可能的。 公开了使用耦合量子阱的电磁辐射的晶体管,激光器和检测器。