期刊
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
卷 27, 期 2, 页码 1-10出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2020.3039280
关键词
Modulation; Optical pulses; Optical fiber dispersion; Laser mode locking; Frequency modulation; Nonlinear optics; Filtering; Fiber nonlinear optics; optical frequency comb; Talbot and self-imaging effect
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Fonds de Recherche du Quebec - Nature et Technologies (FRQNT)
- Fundamental Research Funds for the Central Universities [DUT19RC(3)020]
The study demonstrates pulse repetition-rate multiplication of a low-rate commercial mode-locked laser source, showing its potential for generating optical frequency combs with ultra-broad frequency spacings. Through detailed experimental and numerical analysis, the method is found to be efficient in producing OFCs without the need for high-speed electronics, while offering important versatility.
We demonstrate pulse repetition-rate multiplication (RRM) of a low-rate (sub-GHz) commercial mode-locked laser (MLL) source, and show the potential of the method for optical frequency comb (OFC) generation with ultra-broad frequency spacings. Experimentally, MLL pulses at a 250-MHz repetition rate are sent to a dispersion compensating fiber where pulse RRM is produced through temporal self-imaging, achieving record-high multiplication factors (up to 1540). The rate multiplied pulses are used as a pump signal to modulate the phase of a continuous-wave light through cross-phase modulation (XPM) in a highly nonlinear fiber, leading to the generation of OFCs with ultra-broad frequency spacings (up to 385 GHz). Furthermore, a detailed numerical analysis of the demonstrated scheme is also carried out, involving simulations of the RRM and XPM processes. Through this analysis, the effects of residual dispersions and pump power are investigated towards optimization of the performance of the OFC generation mechanism. The demonstrated approach is efficient in that it fundamentally preserves the input pulses' energy, it offers an important degree of versatility, e.g., in regards to the central optical wavelength and frequency spacing of the produced combs, and it requires no high-speed electronics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据