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Rapid ultrafine-tunable optical delay line at the 1.55-mu m wavelength

机译:1.55微米波长的快速超微调光学延迟线

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A fast, ultrafine-tunable delay line at 1550 nm is demonstrated by use of acousto-optic pulse shaping. Delays of up to 30 ps can be achieved without any optical readjustment. The delay is linear to the rf center frequency applied to the acousto-optic modulator and is fully electronic. It takes only 3 mu s to switch between different time slots, irrespective of the time separation in the tuning range of 30 ps; for a smaller tuning range the tuning speed can be faster. The tuning resolution and range depend on the choice of system parameters. The pulse energy can be regulated by rf power. (C) 1998 Optical Society of America. [References: 10]
机译:通过使用声光脉冲整形,可以证明在1550 nm处有一条快速,超微调的延迟线。无需任何光学调整即可实现高达30 ps的延迟。延迟与施加到声光调制器的射频中心频率成线性关系,并且是完全电子的。不论在30 ps调谐范围内的时间间隔如何,仅需3 s s即可在不同的时隙之间切换。对于较小的调谐范围,调谐速度可以更快。调整分辨率和范围取决于系统参数的选择。脉冲能量可以通过射频功率调节。 (C)1998年美国眼镜学会。 [参考:10]

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