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Title: | Quasi mode-locking of coherent feedback random fiber laser | Authors: | Ma, R Zhang, WL Zeng, XP Yang, ZJ Rao, YJ Yao, BC Yu, CB Wu, Y Yu, SF |
Issue Date: | 2016 | Source: | Scientific reports, 22 2016, v. 6, no. , 39703, p. 1-8 | Abstract: | Mode-locking is a milestone in the history of lasers that allows the generation of short light pulses and stabilization of lasers. This phenomenon is known to occur only in standard ordered lasers for long time and until recently it is found that it also occurs in disordered random lasers formed by nanoscale particles. Here, we report the realization of a so-called quasi mode-locking of coherent feedback random fiber laser which consists of a partially disordered linear cavity formed between a point reflector and a random distributed fiber Bragg grating array with an inserted graphene saturable absorber. We show that multi-groups of regular light pulses/sub-pulses with different repetition frequencies are generated within the quasi mode-locking regime through the so-called collective resonances phenomenon in such a random fiber laser. This work may provide a platform to study mode locking as well as pulse dynamic regulation of random lasing emission of coherent feedback disordered structures and pave the way to the development of novel multi-frequency pulse fiber lasers with potentially wide frequency tuning range. | Publisher: | Nature Publishing Group | Journal: | Scientific reports | EISSN: | 2045-2322 | DOI: | 10.1038/srep39703 | Rights: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ © The Author(s) 2016 The following publication Ma, R. et al. Quasi mode-locking of coherent feedback random fiber laser. Sci. Rep. 6, 39703 (2016) is available at https://dx.doi.org/10.1038/srep39703 |
Appears in Collections: | Journal/Magazine Article |
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