Noise-like pulse generation by amplified well-defined pulse in an optical fiber with negative group velocity dispersion

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Kuan-Yuan Chang, Jia-Ming Liu
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引用次数: 0

Abstract

We experimentally and numerically demonstrate that noise-like pulses (NLPs) can be generated by pumping well-defined pulses (WDPs) into an optical fiber amplifier at a wavelength in the region of negative group velocity dispersion. Through investigating the evolution of the optical pulses, it is realized that the output pulses consist of NLPs at the pump wavelength and split solitons at Stokes wavelengths, due to intrapulse Raman scattering followed by the process of soliton fission. Such process of pulse breakup results in the generation of sub-pulses that have peak powers much higher than the unbroken WDPs have, enabling WDPs to strongly induce nonlinear effects. This finding resolves the discrepancy between the experiment and simulation results of supercontinuum generation by using picosecond WDPs in previous research.
在具有负群速度色散的光纤中通过放大的清晰脉冲产生类噪声脉冲
我们通过实验和数值计算证明,在负群速度色散区域的波长上,通过向光纤放大器泵入定义良好的脉冲(WDP),可以产生类噪声脉冲(NLP)。通过研究光脉冲的演变过程,可以发现输出脉冲由泵浦波长的 NLP 和斯托克斯波长的分裂孤子组成,这是由于脉冲内拉曼散射和孤子裂变过程造成的。这种脉冲分裂过程会产生峰值功率远高于未分裂的 WDP 的子脉冲,从而使 WDP 能够强烈诱导非线性效应。这一发现解决了以往研究中使用皮秒 WDP 产生超连续的实验和模拟结果之间的差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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