Retiming dynamics of harmonically modelocked laser solitons in a self-driven optomechanical lattice
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866910487629791232 |
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| author | Wang, Xiaocong Wang, Benhai He, Wenbin Zhang, Xintong Huang, Qi Huang, Zhiyuan Jiang, Xin Russell, Philip St. J. Pang, Meng |
| author_facet | Wang, Xiaocong Wang, Benhai He, Wenbin Zhang, Xintong Huang, Qi Huang, Zhiyuan Jiang, Xin Russell, Philip St. J. Pang, Meng |
| contents | Harmonic mode-locking, realized actively or passively, is an effective technique for increasing the repetition rate of lasers, with important applications in optical sampling, laser micro-machining and frequency metrology. It is critically important to understand how a harmonically mode-locked pulse train responds to external perturbations and noise, so as to make sure that it is stable and resistant to noise. Here, in a series of carefully designed experiments, we elucidate the retiming dynamics of laser pulses generated in a soliton fiber laser harmonically mode-locked at ~2 GHz to the acoustic resonance in a photonic crystal fiber (PCF) core. We characterize the self-driven optomechanical lattice along the PCF using a homodyne set-up, and reveal that each soliton undergoes damped oscillatory retiming within its trapping potential after an abrupt perturbation. In addition we show, through statistical analysis of the intra-cavity pulse spacing, how the trapping potentials are effective for suppressing timing jitter. The experimental results are well described using a dynamic model including dissipation, which provides valuable insight into the stability and noise performance of optomechanically mode-locked laser systems, and may also be useful for studying complex inter-soliton interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_10026 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Retiming dynamics of harmonically modelocked laser solitons in a self-driven optomechanical lattice Wang, Xiaocong Wang, Benhai He, Wenbin Zhang, Xintong Huang, Qi Huang, Zhiyuan Jiang, Xin Russell, Philip St. J. Pang, Meng Optics Harmonic mode-locking, realized actively or passively, is an effective technique for increasing the repetition rate of lasers, with important applications in optical sampling, laser micro-machining and frequency metrology. It is critically important to understand how a harmonically mode-locked pulse train responds to external perturbations and noise, so as to make sure that it is stable and resistant to noise. Here, in a series of carefully designed experiments, we elucidate the retiming dynamics of laser pulses generated in a soliton fiber laser harmonically mode-locked at ~2 GHz to the acoustic resonance in a photonic crystal fiber (PCF) core. We characterize the self-driven optomechanical lattice along the PCF using a homodyne set-up, and reveal that each soliton undergoes damped oscillatory retiming within its trapping potential after an abrupt perturbation. In addition we show, through statistical analysis of the intra-cavity pulse spacing, how the trapping potentials are effective for suppressing timing jitter. The experimental results are well described using a dynamic model including dissipation, which provides valuable insight into the stability and noise performance of optomechanically mode-locked laser systems, and may also be useful for studying complex inter-soliton interactions. |
| title | Retiming dynamics of harmonically modelocked laser solitons in a self-driven optomechanical lattice |
| topic | Optics |
| url | https://arxiv.org/abs/2406.10026 |