Subpicosecond Oscilloscope

该研究旨在构建紧凑的激光脉冲 五年来一直是发展的瓶颈， 超快光触发示波器，一种重要的仪器， 在评估高速集成电路和微波 装置. 当前的激光脉冲发生器很大，需要连续的 维护，并消耗高达15千瓦的电力。 脉冲 这里提出的源使用低维护二极管激光器，体积小， 只消耗几瓦的能量 这种非常特殊的仪器 需要测试新的高速集成电路，砷化镓微波 器件和皮秒晶体管，用于皮秒同步 电子束装置和高能激光器，用于产生精确的 波形高功率微波突发，并用于驱动模拟， 30 GHz采样率的数字转换器。 皮秒分辨率 需要提取最大的速度和效率，因此 超高速电子的经济优势。 脉冲光学 源使用多个半导体激光器 频率和锁相在一起以产生脉冲。 这 独特的方法解决了带宽和群速度失配 问题比像现在这样与他们斗争更重要 锁模激光器 项目目标包括一个简单的 概念的初步演示和足够的建模， 解释结果。j.>*//

The proposed research is aimed at building a compact laser pulse source which has been the bottleneck for five years in development of an ultrafast optically triggered oscilloscope, an instrument imprtant in the evaluation of high speed integrated circuits and microwave devices. Current laser pulsers are large, require continuous maintenance, and consume up to 15 kilowatts of electricity. The pulse source proposed here uses low maintenance diode laser, is small, and draws a few watts of power. This very special instrumentation is needed to test the new highspeed integrated circuits, GaAs microwave devices and picosecond transistors, for picosecond synchronization of electron beam devices and high energy lasers, for generating precise waveform high power microwave bursts, and for driving analog to digital converter with 30 GHz sampling rates. Picosecond resolution is needed to extract the maximum speed and efficiency and therefore economic advantage from ultrafast electronics. The pulse optical source use multiple semiconductor lasers which operate at different frequencies and are phaselocked together to produce pulses. This unique approach solves the bandwidth and group velocity mismatch problems rater than fighting with them as in done in present modelocked lasers. The project objectives include a simple preliminary demonstration of the concept and enough modeling to interpret the results..j.>***//