kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber Laser
We demonstrate a novel bidirectional mode-locked ultrafast fiber laser based on an asymmetric dual-cavity architecture that enables freely tunable repetition rate differentials at the kilohertz level, while maintaining inherent common-mode noise suppression through precision thermomechanical stabili...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-07-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/7/671 |
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| author | Yongli Liu Zhaohui Zhang Pingan Liu Liguo Zhu |
| author_facet | Yongli Liu Zhaohui Zhang Pingan Liu Liguo Zhu |
| author_sort | Yongli Liu |
| collection | DOAJ |
| description | We demonstrate a novel bidirectional mode-locked ultrafast fiber laser based on an asymmetric dual-cavity architecture that enables freely tunable repetition rate differentials at the kilohertz level, while maintaining inherent common-mode noise suppression through precision thermomechanical stabilization. Through cascaded amplification and nonlinear temporal compression, we obtained bidirectional pulse durations of 33.2 fs (clockwise) and 61.6 fs (counterclockwise), respectively. The developed source demonstrates exceptional capability for asynchronous optical sampling applications, particularly in enabling the compact implementation of real-time measurement systems such as terahertz time-domain spectroscopy (THz-TDS) systems. |
| format | Article |
| id | doaj-art-5f8e29af7b4e4930968d9f86c31b366e |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-5f8e29af7b4e4930968d9f86c31b366e2025-08-20T03:08:13ZengMDPI AGPhotonics2304-67322025-07-0112767110.3390/photonics12070671kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber LaserYongli Liu0Zhaohui Zhang1Pingan Liu2Liguo Zhu3Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, ChinaWe demonstrate a novel bidirectional mode-locked ultrafast fiber laser based on an asymmetric dual-cavity architecture that enables freely tunable repetition rate differentials at the kilohertz level, while maintaining inherent common-mode noise suppression through precision thermomechanical stabilization. Through cascaded amplification and nonlinear temporal compression, we obtained bidirectional pulse durations of 33.2 fs (clockwise) and 61.6 fs (counterclockwise), respectively. The developed source demonstrates exceptional capability for asynchronous optical sampling applications, particularly in enabling the compact implementation of real-time measurement systems such as terahertz time-domain spectroscopy (THz-TDS) systems.https://www.mdpi.com/2304-6732/12/7/671asymmetric dual-cavityasynchronous optical samplingthermomechanical stabilization |
| spellingShingle | Yongli Liu Zhaohui Zhang Pingan Liu Liguo Zhu kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber Laser Photonics asymmetric dual-cavity asynchronous optical sampling thermomechanical stabilization |
| title | kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber Laser |
| title_full | kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber Laser |
| title_fullStr | kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber Laser |
| title_full_unstemmed | kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber Laser |
| title_short | kHz Noise-Suppressed Asymmetric Dual-Cavity Bidirectional Femtosecond Fiber Laser |
| title_sort | khz noise suppressed asymmetric dual cavity bidirectional femtosecond fiber laser |
| topic | asymmetric dual-cavity asynchronous optical sampling thermomechanical stabilization |
| url | https://www.mdpi.com/2304-6732/12/7/671 |
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