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arXiv 0711.4172physics.optics
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利用原子色散实现大动态范围的宽带光延迟

Broadband optical delay with large dynamic range using atomic dispersion

M. R. Vanner, R. J. McLean, A. I. Sidorov, P. Hannaford, A. M. Akulshin

摘要:

报道了一种可调谐的全光延迟线,其光频在Rb $D_2$吸收线内。使用不同同位素吸收成分之间的频率调谐,10 ns持续时间的脉冲在10 cm的热蒸气室中延迟高达40 ns,而透射率保持在10%以上。两种同位素的使用允许通过用第二激光器进行光泵浦来增加或减少延迟,从而在110 $^{\circ}$ C下在大于初始延迟的40%的范围内产生快速调谐。我们调查的频率和强度范围内,这种延迟线可以实现。我们的观察结果与系统的数值模型吻合得很好。

英文摘要:

We report on a tunable all-optical delay line for pulses with optical frequency within the Rb $D_2$ absorption line. Using frequency tuning between absorption components from different isotopes, pulses of 10 ns duration are delayed in a 10 cm hot vapour cell by up to 40 ns while the transmission remains above 10%. The use of two isotopes allows the delay to be increased or decreased by optical pumping with a second laser, producing rapid tuning over a range of more than 40% of the initial delay at 110$^{\circ}$C. We investigate the frequency and intensity ranges in which this delay line can be realised. Our observations are in good agreement with a numerical model of the system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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