An Economical Single-Pulse Picker without Nonlinear Effect and Dispersion

Chen Wei Hu^1*, Yu Chieh Wen², Hung Wen Chen^1,3

¹International Intercollegiate Ph.D. Program, National Tsing Hua University, Hsinchu, Taiwan
²Institute of Physics, Academia Sinica, Taipei, Taiwan
³Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan

* Presenter:Chen Wei Hu, email:willyhu0410@gmail.com

An economical single-shot pulse picker (SSPP) design without dispersion, nonlinear effect and the limitation on the optical wavelength is proposed. This novel design can be applied to a high-fluence laser to select a single pulse which usually couldn’t be done by commercial pulse pickers such as acoustic optical modulator (AOM), electro optical modulator (EOM) and optical shutter. The proposed design composes of a periodic beam blocker, a control unit and a mechanical shutter and has been successfully applied to the commercial high-fluence femtosecond laser with 12 mm beam diameter, 2 mJ pulse energy and 1kHz repetition rate. This novel design could be beneficial to the single-shot experiments using high-fluence ultrashort pulsed lasers.

Keywords: Single Shot, Pulse Picker, High Fluence Laser, Dispersion, Nonlinear Effect