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

doi:10.1088/1674-1056/26/10/104206

Abstract 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-mJ 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.

Keywords: spatiotemporal dynamics self-compression mid-infrared pulses hollow-core fibers

Received: 08 April 2017
Revised: 25 May 2017
Accepted manuscript online:

PACS:	42.65.-k	(Nonlinear optics)
	42.65.Re	(Ultrafast processes; optical pulse generation and pulse compression)
	42.65.Jx	(Beam trapping, self-focusing and defocusing; self-phase modulation)
	42.81.Qb	(Fiber waveguides, couplers, and arrays)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61475169, 61521093, and 11127901), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16), and the International Science and Technology Cooperation Program of China (Grant No. 2016YFE0119300).

Corresponding Authors: Yu-Xin Leng
E-mail: lengyuxin@mail.siom.ac.cn

Cite this article:

Rui-Rui Zhao(赵睿睿), Ding Wang(王丁), Yu Zhao(赵钰), Yu-Xin Leng(冷雨欣), Ru-Xin Li(李儒新) Self-compression of 1.8-μm pulses in gas-filled hollow-core fibers 2017 Chin. Phys. B 26 104206

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[1]	Generation of few-cycle radially-polarized infrared pulses in a gas-filled hollow-core fiber Rui-Rui Zhao(赵睿睿), Zhi-Yuan Huang(黄志远), Ding Wang(王丁), Yu Zhao(赵钰), Yu-Xin Leng(冷雨欣), Ru-Xin Li(李儒新). Chin. Phys. B, 2018, 27(10): 104204.
[2]	Spatiotemporal propagation dynamics of intense optical pulses in loosely confined gas-filled hollow-core fibers Rui-rui Zhao(赵睿睿), Ding Wang(王丁), Zhi-yuan Huang(黄志远), Yu-xin Leng(冷雨欣), Ru-xin Li(李儒新). Chin. Phys. B, 2017, 26(1): 014208.
[3]	Self-compression of femtosecond pulses in argon with a power close to the self-focusing threshold Chen Xiao-Wei(陈晓伟), Zeng Zhi-Nan(曾志男), Dai Jun(戴君), Li Xiao-Fang(李小芳), Li Ru-Xin(李儒新), and Xu Zhi-Zhan(徐至展) . Chin. Phys. B, 2008, 17(5): 1826-1832.

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