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| Title | Balanced Optical-Microwave Phase Detector for 800-nm Pulsed Lasers with Sub-Femtosecond Resolution | |
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| Abstract | Novel light-matter interaction experiments conducted in free-electron lasers, ultrafast electron diffraction instruments and extreme light infrastructures require synchronous operation of microwave sources with femtosecond pulsed lasers [1]. In particular, Ti:sapphire lasers have become the most common near-infrared light source used in these facilities due to their wide-range tunability and their ability to generate ultrashort pulses at around 800-nm optical wavelength [2]. Therefore, a highly sensitive optical-to-microwave phase detector operating at 800 nm is an indispensable tool to synchronize these ubiquitous lasers to the microwave clocks of these facilities. Electro-optic sampling is one approach that has proven to be the most precise in extracting the relative phase noise between microwaves and optical pulse trains. However, their implementation at 800-nm wavelength has been so far limited [3]. Here, we show a balanced optical-microwave phase detector designed for 800-nm operation based on electro-optic sampling. The detector has a timing resolution of 0.01 fs RMS for offset frequencies above 100 Hz and a total noise floor of less than 10 fs RMS integrated from 1 Hz to 1 MHz. | |
| Footnotes & References | [1] M. Xin, K. Shafak and F. X. Kärtner, Optica, vol. 5, no. 12, pp. 1564-1578, 2018. [2] H. Yang et al., Scientific Reports, vol. 7, no. 39966, 2017. [3] M. Titberidze, DESY-THESIS-2017-040, 2017. |
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| Paper | download WEP003.PDF [0.896 MB / 3 pages] | |
| Export | download ※ BibTeX ※ LaTeX ※ Text/Word ※ RIS ※ EndNote | |
| Conference | FEL2019 | |
| Series | Free Electron Laser Conference (39th) | |
| Location | Hamburg, Germany | |
| Date | 26-30 August 2019 | |
| Publisher | JACoW Publishing, Geneva, Switzerland | |
| Editorial Board | Volker R.W. Schaa (GSI, Darmstadt, Germany); Winfried Decking (DESY, Hamburg, Germany); Harald Sinn (EuXFEL, Schenefeld, Germany); Gianluca Geloni (EuXFEL, Schenefeld, Germany); Siegfried Schreiber (DESY, Hamburg, Germany); Michaela Marx (DESY, Hamburg, Germany) | |
| Online ISBN | 978-3-95450-210-3 | |
| Online ISSN | "" | |
| Received | 20 August 2019 | |
| Accepted | 27 August 2019 | |
| Issue Date | 05 November 2019 | |
| DOI | doi:10.18429/JACoW-FEL2019-WEP003 | |
| Pages | 322-324 | |
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