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    • 1. 发明申请
    • SYSTEM AND METHOD OF MODULATING ELECTRICAL SIGNALS USING PHOTOCONDUCTIVE WIDE BANDGAP SEMICONDUCTORS AS VARIABLE RESISTORS
    • 使用光电半导体半导体作为可变电阻调制电信号的系统和方法
    • WO2009129512A3
    • 2010-01-28
    • PCT/US2009041046
    • 2009-04-17
    • L LIVERMORE NAT SECURITY LLCHARRIS JOHN RCAPORASO GEORGE JSAMPAYAN STEPHEN E
    • HARRIS JOHN RCAPORASO GEORGE JSAMPAYAN STEPHEN E
    • H01L31/08G02F1/03H03C1/34
    • H03C1/34H03C7/00
    • A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction response to changes in amplitude of incident radiation is substantially linear throughout a non-saturation region to enable operation in non-avalanche mode. The system also includes a modulated radiation source, such as a modulated laser, for producing amplitude- modulated radiation with which to direct upon the variable resistor and modulate its conduction response. A voltage source and an output port, are both operably connected to the variable resistor so that an electrical signal may be produced at the output port by way of the variable resistor, either generated by activation of the variable resistor or propagating through the variable resistor. In this manner, the electrical signal is modulated by the variable resistor so as to have a waveform substantially similar to the amplitude-modulated radiation.
    • 一种用于产生调制电信号的系统和方法。 该系统使用具有光电导宽带隙半导体材料结构的可变电阻器,其对入射辐射的幅度变化的传导响应在整个非饱和区域基本上是线性的,以使得能够在非雪崩模式下操作。 该系统还包括调制的辐射源,例如调制的激光器,用于产生调幅辐射,通过该辐射来引导可变电阻并调制其传导响应。 电压源和输出端口都可操作地连接到可变电阻器,使得可以通过可变电阻器在输出端口处产生电信号,该可变电阻器通过可变电阻器的激活或通过可变电阻器传播而产生。 以这种方式,电信号被可变电阻器调制以具有与幅度调制辐射基本相似的波形。