High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material
Recent advances in perovskite crystals have highlighted their exceptional optical properties, making them promising candidates for a wide range of photonic applications. However, the exploration of high-repetition-rate laser systems based on these materials remains underdeveloped, hindering their po...
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-06-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2025-0087 |
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| author | Du Xiaohui Liu Chenyue Ding Zefei Zhao Yuan Zhu Cunguang Wang Yaoyao Wang Pengpeng |
| author_facet | Du Xiaohui Liu Chenyue Ding Zefei Zhao Yuan Zhu Cunguang Wang Yaoyao Wang Pengpeng |
| author_sort | Du Xiaohui |
| collection | DOAJ |
| description | Recent advances in perovskite crystals have highlighted their exceptional optical properties, making them promising candidates for a wide range of photonic applications. However, the exploration of high-repetition-rate laser systems based on these materials remains underdeveloped, hindering their potential in ultrafast laser technologies and related fields such as optical communications and precision metrology. In this study, we present, for the first time, the saturable absorption characteristics of a novel organic–inorganic hybrid perovskite incorporating the heavy metal bismuth (Bi), specifically N-methylbenzothiazoleBiI4 (BtzBiI4). The material was integrated as a saturable absorber (SA) into a passively mode-locking erbium-doped fiber laser. By harnessing the exceptional optical nonlinearity of BtzBiI4-SA, we successfully achieved stable fundamental mode-locking, harmonic mode-locking, and bound-state soliton mode-locking within a single cavity. The fundamental mode-locking yielded pulses with a duration of 844 fs and a signal-to-noise ratio of 66.15 dB. Additionally, the 142nd-order harmonic solitons attained an impressive repetition rate of 1.3202 GHz. These results represent a significant step forward in the realization of high-repetition-rate fiber lasers utilizing perovskite materials. Our findings highlight the remarkable potential of BtzBiI4 as a high-performance nonlinear optical material, paving the way for next-generation ultrafast photonic devices. |
| format | Article |
| id | doaj-art-bcfb4f9e2dfc48f3b0b39d34a6edddaf |
| institution | Kabale University |
| issn | 2192-8614 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-bcfb4f9e2dfc48f3b0b39d34a6edddaf2025-08-20T03:41:22ZengDe GruyterNanophotonics2192-86142025-06-0114152587260310.1515/nanoph-2025-0087High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical materialDu Xiaohui0Liu Chenyue1Ding Zefei2Zhao Yuan3Zhu Cunguang4Wang Yaoyao5Wang Pengpeng658291Liaocheng University, Liaocheng, China58291Liaocheng University, Liaocheng, China58291Liaocheng University, Liaocheng, China58291Liaocheng University, Liaocheng, China58291Liaocheng University, Liaocheng, China58291Liaocheng University, Liaocheng, China58291Liaocheng University, Liaocheng, ChinaRecent advances in perovskite crystals have highlighted their exceptional optical properties, making them promising candidates for a wide range of photonic applications. However, the exploration of high-repetition-rate laser systems based on these materials remains underdeveloped, hindering their potential in ultrafast laser technologies and related fields such as optical communications and precision metrology. In this study, we present, for the first time, the saturable absorption characteristics of a novel organic–inorganic hybrid perovskite incorporating the heavy metal bismuth (Bi), specifically N-methylbenzothiazoleBiI4 (BtzBiI4). The material was integrated as a saturable absorber (SA) into a passively mode-locking erbium-doped fiber laser. By harnessing the exceptional optical nonlinearity of BtzBiI4-SA, we successfully achieved stable fundamental mode-locking, harmonic mode-locking, and bound-state soliton mode-locking within a single cavity. The fundamental mode-locking yielded pulses with a duration of 844 fs and a signal-to-noise ratio of 66.15 dB. Additionally, the 142nd-order harmonic solitons attained an impressive repetition rate of 1.3202 GHz. These results represent a significant step forward in the realization of high-repetition-rate fiber lasers utilizing perovskite materials. Our findings highlight the remarkable potential of BtzBiI4 as a high-performance nonlinear optical material, paving the way for next-generation ultrafast photonic devices.https://doi.org/10.1515/nanoph-2025-0087perovskite crystalssaturable absorberultrafast fiber lasersmode-lockingharmonic mode-locking |
| spellingShingle | Du Xiaohui Liu Chenyue Ding Zefei Zhao Yuan Zhu Cunguang Wang Yaoyao Wang Pengpeng High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material Nanophotonics perovskite crystals saturable absorber ultrafast fiber lasers mode-locking harmonic mode-locking |
| title | High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material |
| title_full | High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material |
| title_fullStr | High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material |
| title_full_unstemmed | High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material |
| title_short | High-repetition-rate ultrafast fiber lasers enabled by BtzBiI4: a novel bismuth-based perovskite nonlinear optical material |
| title_sort | high repetition rate ultrafast fiber lasers enabled by btzbii4 a novel bismuth based perovskite nonlinear optical material |
| topic | perovskite crystals saturable absorber ultrafast fiber lasers mode-locking harmonic mode-locking |
| url | https://doi.org/10.1515/nanoph-2025-0087 |
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