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首页> 外文会议>Conference on Ultrafast Phenomena in Semiconductors Ⅴ Jan 25-26, 2001, San Jose, USA >Adaptive All-Order Fsec Dispersion Compensation and Pulse Combining
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Adaptive All-Order Fsec Dispersion Compensation and Pulse Combining

机译：自适应全阶Fsec色散补偿和脉冲组合

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摘要

Adaptive holographic quantum-well films are high-sensitivity dynamic holographic media that can be used to self-compensate time-varying disturbances such as mechanical vibration in interferometers, laser speckle, fsec pulse broadening and arrival-time drift. The holograms are quasi-steady-state with a compensation bandwidth up to 1 MHz. Dispersion to all orders is compensated by forming a dynamic spectral-domain hologram of a signal pulse (that has a time-varying dispersion) referenced to a stable clock pulse. The hologram is read out using forward scattering phase conjugation to remove phase distortion to all orders, including linear order that induces drift in the time of flight. We also have used adaptive interferometry to combine two ultrashort pulses into a pulse train. The relative phase between the two pulses in the train are self-adaptively phase locked, and is immune to drifting optical path differences or delay times between the two input pulses.
机译：自适应全息量子阱膜是一种高灵敏度动态全息介质，可用于自补偿时变干扰，例如干涉仪中的机械振动，激光散斑，fsec脉冲展宽和到达时间漂移。全息图是准稳态的，补偿带宽高达1 MHz。通过形成参考稳定时钟脉冲的信号脉冲（具有随时间变化的色散）的动态光谱域全息图，可以补偿所有阶的色散。使用前向散射相位共轭将全息图读出，以消除所有阶次的相位畸变，包括引起飞行时间漂移的线性阶次。我们还使用自适应干涉术将两个超短脉冲组合成一个脉冲序列。列中两个脉冲之间的相对相位是自适应锁相的，并且不受两个输入脉冲之间的光程差或延迟时间的影响。

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