Academic Journal
Gigahertz femtosecond laser-by a novel asymmetric one-dimensional photonic crystal saturable absorber device with defect layer
| العنوان: | Gigahertz femtosecond laser-by a novel asymmetric one-dimensional photonic crystal saturable absorber device with defect layer |
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| المؤلفون: | Song Chun-Yu, Chen Hua-Long, Wang Yong-Jie, Jin Liang, Xu Ying-Tian, Shi Lin-Lin, Zou Yong-Gang, Ma Xiao-Hui, Song Yu-Feng, Wang Cong, Zhang Ya-Ting, Lin Ja-Hon, Zhang He, Zhang Han, Yao Jian-Quan |
| المصدر: | Nanophotonics, Vol 11, Iss 12, Pp 2939-2951 (2022) |
| بيانات النشر: | De Gruyter, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Physics |
| مصطلحات موضوعية: | harmonic, mode locking, photonic crystal, Physics, QC1-999 |
| الوصف: | High repetition frequency (HRF) ultrashort pulse fiber laser has been widely used in laser cold processing. The technical solutions such as short cavity length fiber laser have been proposed to achieve HRF ultrashort pulse output recently. However, the application of material-based saturable absorbers in this field has been astricted due to the low modulation depth, low damage resistance threshold, and high saturation fluence. Here, we designed a one-dimensional asymmetric photonic crystal with defect layer (1D-APCDL) as a novel saturable absorber, where the defect layer is Bi1.6Sb0.4Te3 with high modulation depth. The harmonic pulse with 3.82 GHz repetition frequency is achieved at the wavelength of 1562 nm, which is the highest repetition frequency of the topological insulator-based ring fiber laser so far to the best of our knowledge. The research provides a new saturable absorber solution, and provides a new idea for the application of material-based nonlinear optical chip in high-repetition frequency ultrashort pulse fiber lasers. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2192-8606 2192-8614 |
| Relation: | https://doaj.org/toc/2192-8606; https://doaj.org/toc/2192-8614 |
| DOI: | 10.1515/nanoph-2022-0145 |
| URL الوصول: | https://doaj.org/article/6ca25cd73a714370b5d2084256843d71 |
| رقم الانضمام: | edsdoj.6ca25cd73a714370b5d2084256843d71 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21928606 21928614 |
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| DOI: | 10.1515/nanoph-2022-0145 |