Ultrafast fiber laser based on bismuth telluride evanescent field mode-locked device
文献类型：期刊论文
| 作者 | S.-D. Zhang and Y.-J. Geng |
| 刊名 | Chinese Optics
 |
| 出版日期 | 2022 |
| 卷号 | 15期号:3页码:433-442 |
| ISSN号 | 20971842 |
| DOI | 10.37188/CO.2021-0216 |
| 英文摘要 | In order to realize the passively harmonic mode-locking with high repetition rate in the fiber laser. A saturable absorber (SA) based on two dimensional (2D) topological insulators material of Bismuth telluride (Bi2Te3), combining with a side-polished fiber, was fabricated by laser deposition technology in this study. This device has a modulation depth of 23.96%, nonsaturable loss of 37.77% and saturable intensity of 31.5 MW/cm2. According to the adjustment of dispersion in the whole cavity and the excellent nonlinear saturable absorb character in topological insulator materials, a self-starting mode-locking is realized successfully when this SA device is applied in the Er-doped fiber laser, with a central wavelength of 1555.67 nm, pulse duration of 487 fs, repetition rate of 47.87 MHz and signal-to-noise ratio of 58 dB. A harmonic mode-locking is achieved when the pump power is over 150 mW. When we adjust and increase slightly the pump power till 250 mW, the harmonic mode-locking of 11 orders is achieved with the repetition rate of 528 MHz and the signal-to-noise ratio of 41.5 dB. These results demonstrate that with the evanescent field produced by the side-polished fiber, the damage threshold of materials can be improved and the passively harmonic mode-locking with high repetition rate is realized, which has a great significance for the materials in the application of ultrafast fiber laser with high repetition rate. Copyright 2022 Chinese Optics. All rights reserved. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/67210]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | S.-D. Zhang and Y.-J. Geng. Ultrafast fiber laser based on bismuth telluride evanescent field mode-locked device[J]. Chinese Optics,2022,15(3):433-442. |
| APA | S.-D. Zhang and Y.-J. Geng.(2022).Ultrafast fiber laser based on bismuth telluride evanescent field mode-locked device.Chinese Optics,15(3),433-442. |
| MLA | S.-D. Zhang and Y.-J. Geng."Ultrafast fiber laser based on bismuth telluride evanescent field mode-locked device".Chinese Optics 15.3(2022):433-442. |
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