Abstract
We report for the first time, to the best of our knowledge, an innovative design concept for intracavity pulse stretching in a regenerative amplifier, employing a single “grating-mirror” based on a leaky-mode grating-waveguide design. The very compact and flexible layout allows for femtosecond pulses to be in principle easily stretched up to nanosecond durations. The design has been tested in a diode-pumped Yb:CALGO regenerative amplifier followed by a standard transmission grating compressor. Sub-200-fs pulses (stretched pulses ) with 205-μJ energy at 20-kHz repetition rate have been demonstrated. In order to prove the robustness and potential for energy scaling of leaky-mode grating-waveguide intracavity stretcher, we generated stretched pulses with energies of up to (400-ps long) at a lower repetition rate of 10 kHz. A simple model is proposed for the study of the cavity in presence of induced spatial chirp.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Hartmut Liebetrau, Marco Hornung, Sebastian Keppler, Marco Hellwing, Alexander Kessler, Frank Schorcht, Joachim Hein, and Malte C. Kaluza
Opt. Lett. 42(2) 326-329 (2017)
Alexander Rudenkov, Viktor Kisel, Vladimir Matrosov, and Nikolai Kuleshov
Opt. Lett. 40(14) 3352-3355 (2015)
Hongpeng Su, Yujie Peng, Yanyan Li, Xiaoming Lu, Junchi Chen, Pengfei Wang, Xinlin Lv, Beijie Shao, and Yuxin Leng
Opt. Lett. 44(8) 1980-1983 (2019)