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arXiv 0705.2281physics.opticsphysics.bio-ph
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可调谐Ti:Al2O3振荡器,针对高重复频率和短脉冲进行了优化

Tunable Ti:Al2O3 oscillator optimized for high-repetition-rate and short pulses

J. Sawinski, D. Debarre, W. Denk

摘要:

激光器的设计和建造的目标是产生高重复率的超短脉冲所需的某些应用程序的多光子显微镜。采用纯棱镜色散补偿,重复频率可达270 MHz。激光器分别在第三(发散输出)和第一(平行输出)稳定极限下以硬孔径和软孔径操作。在第三个稳定极限下,中心波长为800 nm的脉冲宽度为27 fs(FWHM)。在第一稳定极限处,脉冲宽度为23- 40 fs,可调谐范围为780 - 920 nm。

英文摘要:

A laser was designed and constructed with the goal of producing ultra-short pulses at a high repetition rate as needed for certain applications of multi-photon microscopy. With pure prism-based dispersion compensation repetition rates of up to 270MHz were achieved. The laser operates with hard- and soft-aperturing at the third (diverging output) and the first (parallel output) stability limits, respectively. At the third stability limit we found a pulse width of 27fs (FWHM) at 800nm central wavelength. At the first stability limit pulse widths of 23-40fs with tunability from 780nm to 920nm were reached.

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