Self-compression of 1.8-μm pulses in gas-filled hollow-core fibers

• 来源期刊: 中国物理B（英文版）
• 关键词: spatiotemporal dynamics self-compression mid-infrared pulses hollow-core fibers
• 年，卷（期）: 2017,（10）
• 页码范围: 242-248
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/26/10/104206

摘要

We numerically study the self-compression of the optical pulses centered at 1.8-μm in a hollow-core fiber (HCF) filled with argon.It is found that the pulse can be self-compressed to 2 optical cycles when the input pulse energy is 0.2-rnJ and the gas pressure is 500-mbar (1 bar=105 Pa).Inducing a proper positive chirp into the input pulse can lead to a shorter temporal duration after self-compression.These results will benefit the generation of energetic few-cycle mid-infrared pulses.