光学
超短脉冲
飞秒脉冲整形
带宽限制脉冲
材料科学
激光器
脉冲整形
飞秒
群时延和相位时延
通带
带宽(计算)
物理
计算机科学
电信
带通滤波器
作者
Vladimir Yakovlevich Molchanov,Konstantin B. Yushkov
摘要
Acousto-optic dispersive delay line with 4K Nyquist-limited resolution was designed and fabricated for high-definition ultrashort laser pulse shaping. The delay line was optimized for Ti:sapphire laser radiation supporting over 200 nm bandwidth with the transmission passband of 0.18 nm. Experimental assessment and applications of the delay line for time-domain ultrashort pulse modulation are discussed in the report. Arbitrary complex-valued spectral transmission functions of the delay line can be obtained using dispersive Fourier synthesis algorithm for RF waveforms. The results include programmable replication of transform limited femtosecond pulses in 3 ps delay range and time-domain chirped pulse modulation with sub-4-ps rise/fall time of pulse fronts.
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