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    • 5. 发明申请
    • SINGLE PHOTON SOURCE
    • 单光源
    • WO2008064407A1
    • 2008-06-05
    • PCT/AU2007/001819
    • 2007-11-27
    • UNIQUEST PTY LIMITEDMILBURN, GerardFERNEE, Mark
    • MILBURN, GerardFERNEE, Mark
    • H01L33/00G02F1/017H01S4/00
    • B82Y10/00G06E3/00G06N99/002
    • A single photon source comprises an atom-like emitter (18), such as a quantum dot or a colour centre, and a high-Q optical cavity. The atom-like emitter (18) is triggered to emit a single photon via excitation into a higher excited state (16), relaxation into to an emitting state (14), and decay to the groundstate (12) via spontaneous emission of a photon into the optical cavity. Timing jitter is decreased by keeping the emitter (18) off-resonance with the cavity during the relaxation phase (eg, via Stark detuning), and bringing it back into to resonance with the cavity after a characteristic delay time. This improves the indistinguishability between members of a train of emitted photons.
    • 单个光子源包括诸如量子点或色心的原子状发射体(18)和高Q光腔。 触发原子状发射体(18),通过激发将单个光子发射到更高的激发态(16),松弛进入发射状态(14),并通过自发发射的光子衰减到地面(12) 进入光腔。 通过在弛豫阶段(例如,通过Stark失谐)保持发射极(18)与空腔共振而减小定时抖动,并且在特征延迟时间之后使其回到谐振。 这提高了发射光子列的成员之间的不可区分性。
    • 7. 发明申请
    • MULTIMODE FIBER OPTIC AMPLIFIER AND METHOD OF AMPLIFYING OPTICAL SIGNALS
    • 多模光纤放大器和放大光信号的方法
    • WO2007019035A3
    • 2007-10-11
    • PCT/US2006028693
    • 2006-07-24
    • ITT MFG ENTERPRISES INCFISHER DONALD SCOTT
    • FISHER DONALD SCOTT
    • H01S3/00H01S4/00
    • H04B10/0797H04B10/2581H04B10/291H04B2210/003
    • A multimode fiber receiver includes a multimode collimator, a multimode fiber optic amplifier and a detector. The collimator receives incoming signals and provides the signals to the amplifier. The amplifier includes plural amplification stages, a limiter, a tunable narrow band filter and a microcontroller. The amplification stages each include a gain element and a noise filter. The limiter receives the amplified signals and limits the energy of those signals. The optical signals subsequently traverse the narrow band filter including an adjustable pass band to provide desired signals to the detector. The microcontroller measures the energy of the incoming and output signals to control the limiter, amplification stages and/or narrow band filter in order to produce signals within the dynamic range of a particular application. The multimode fiber optic amplifier and/or receiver of the present invention is preferably utilized within an optical communication unit.
    • 多模光纤接收器包括多模准直器,多模光纤放大器和探测器。 准直仪接收输入信号并将信号提供给放大器。 该放大器包括多个放大级,限幅器,可调窄带滤波器和微控制器。 放大级每个包括增益元件和噪声滤波器。 限幅器接收放大的信号并限制这些信号的能量。 随后光信号穿过包括可调节通带的窄带滤波器,以向检测器提供期望的信号。 微控制器测量输入和输出信号的能量以控制限幅器,放大级和/或窄带滤波器,以便在特定应用的动态范围内产生信号。 本发明的多模光纤放大器和/或接收器优选用于光通信单元内。
    • 9. 发明申请
    • MINIATURIZED TERAHERTZ RADIATION SOURCE
    • 微型太赫兹辐射SOURCE
    • WO00072413A2
    • 2000-11-30
    • PCT/EP2000/004167
    • 2000-05-10
    • H01J1/304H01J3/02H01J25/00H01S3/09H01S3/30H01S4/00
    • H01S3/0903H01J3/021H01J25/00
    • The invention relates to a miniaturized terahertz radiation source based on the Smith-Purcell effect. According to the invention, an energy-rich electron beam is emitted from a focused electron source at a defined distance across a metal grid of transversal grid rods so that oscillating image charges emit electromagnetic waves of a wavelength that can be adjusted on the basis of the periodicity of the webs and the electron speed. The elements of the radiation source such as the field emitter (1), the electrostatic lens (4), the beam deflector (5), the metal grid (7) and a second anode (8) are located on a semiconductor chip integrated by means of additive nanolithography methods. The field electron source is configured as a highly conductive wire with a stabilizing external resistor that is produced by additive nanolithography methods and protrudes from the surface. Said wire is produced by computer-controlled deposition lithography as a self-contained straight or arcuate structure. The base material, in its surface, has a track structure for the electrical connections and links (2) with controlled supply terminals (3) for supplying the field emitter tips (1), the lens (4) and the control electrodes (5, 8) with power. The terahertz radiation source according to the invention is powerful and can be used as a modular component irrespective of its spatial arrangement.
    • 本发明提供基于了Smith-赛尔效果,其中,从聚焦的电子源中的横向杆的金属栅格上方限定距离处的电子的高能量束被发送,以使得电磁通过振动波长的图像电荷波的小型化的太赫兹辐射源 被发射,这是由脊的周期性和电子速度可调。 辐射源的元件,诸如场致发射体(1),(4),一个光束偏转器(5),栅金属和第二阳极(8)被布置成集成使用添加剂纳米光刻方法在半导体芯片上的(7)静电透镜。 场致电子源是通过从与稳定镇流器高导电性材料的表面突出的导线添加剂纳米光刻设计成。 导线被构造自支撑由计算机控制的沉积光刻中,直的或弯曲的设计。 基材在其表面磨损供给场发射器尖端与可控电压源(3)的电连接和连接(2)的印刷导体结构(1),透镜(4)和控制电极(5,8)。 太赫兹辐射源设计可以为可用和有效的模块化部件的任何空间位置被使用。