Affiliation:
1. Chinese Academy of Sciences
2. University of Chinese Academy of Sciences
Abstract
Chromium-doped chalcogenides, with broad and high emission
cross-sections near 2.4 µm, are very suitable for
generating high-peak-power pulses in the short-wave infrared range. In
this Letter, we demonstrate a TW-level system with a repetition rate
of 1 Hz by using Cr:ZnS as the gain medium. The seed pulse was
amplified to over 200 mJ via two stages of amplification. To
achieve the optimized amplified output, we combined Cr:ZnS elements to
absorb more pump energy and used the ink-cladding technique to
suppress the transverse parasitic lasing inside the Cr:ZnS elements.
After compression, we obtained a 147.1-mJ pulse with a duration of
127.6 fs, corresponding to a peak power output of
0.95 TW.
Funder
Strategic Priority Research Program of
the Chinese Academy of Sciences
National Natural Science Foundation of
China
National Key Research and Development
Program of China
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials