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PreprintCC BYarXiv (Cornell University)

Passive repetition-rate stabilization for a mode-locked fiber laser by electro-optic modulation

  • Tingting Yu1,2
  • Jiang, Shuhong1,2
  • Jian‐an Fang1,2
  • Tingting Liu1,2
  • Xiuqi Wu1,2
  • Ming Yan3,1,4,2
  • Kun Huang4,5,2
  • Heping Zeng4,6,2
6 affiliations
  1. 1State Key Laboratory of Precision Spectroscopy , East China Normal University , Shanghai 200062 , China
  2. 2State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  3. 3Chongqing Key Laboratory of Precision Optics , Chongqing Institute of East China Normal University , Chongqing , China
  4. 4Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, China
  5. 5Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
  6. 6Jinan Institute of Quantum Technology, Jinan, Shandong 250101, China
Open at sourceDOICite

Abstract

We report a passive stabilization of the repetition rate for a mode-locked fiber laser by using an electro-optic modulator in a phase-biased nonlinear amplifying loop mirror. The underlying mechanism, in contrast to active feedback operations, lies in the cross-phase modulation between electrical and optical pulses within an electro-optic crystal. The resulting spectral shift can automatically compensate the cavity-length drift via the group velocity dispersion. Consequently, the artificial actuator enables to obtain a capture range up to 2.3 mm, much longer than that achieved by index changes of the modulator. A robust and tight locking for the repetition rate is then realized with a standard deviation as low as 9 μHz with a 1-s sample time over 11 hours, corresponding to a fractional instability of 4.3×10−13. Furthermore, a dynamic optical sampling by repetition-rate tuning has been manifested with a fast refresh rate at 100 kHz and a broad scanning range over 305 ps. The demonstrated passive servo action may provide a simple yet effective way to stabilize the repetition rate with high precision, large bandwidth and wide tunability.

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Cite

BibTeXRIS
BibTeX
@misc{yu2026passive,
  title = {{Passive repetition-rate stabilization for a mode-locked fiber laser by electro-optic modulation}},
  author = {Tingting Yu and Jiang, Shuhong and Jian‐an Fang and Tingting Liu and Xiuqi Wu and Ming Yan and Kun Huang and Heping Zeng},
  howpublished = {arXiv (Cornell University)},
  year = {2026},
  month = jun,
  doi = {10.48550/arxiv.2606.03207},
  url = {https://doi.org/10.48550/arxiv.2606.03207},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Passive repetition-rate stabilization for a mode-locked fiber laser by electro-optic modulation
AU  - Tingting Yu
AU  - Jiang, Shuhong
AU  - Jian‐an Fang
AU  - Tingting Liu
AU  - Xiuqi Wu
AU  - Ming Yan
AU  - Kun Huang
AU  - Heping Zeng
PY  - 2026
DA  - 2026/06/02
PB  - arXiv (Cornell University)
DO  - 10.48550/arxiv.2606.03207
UR  - https://doi.org/10.48550/arxiv.2606.03207
AB  - We report a passive stabilization of the repetition rate for a mode-locked fiber laser by using an electro-optic modulator in a phase-biased nonlinear amplifying loop mirror. The underlying mechanism, in contrast to active feedback operations, lies in the cross-phase modulation between electrical and optical pulses within an electro-optic crystal. The resulting spectral shift can automatically compensate the cavity-length drift via the group velocity dispersion. Consequently, the artificial actuator enables to obtain a capture range up to 2.3 mm, much longer than that achieved by index changes of the modulator. A robust and tight locking for the repetition rate is then realized with a standard deviation as low as 9 μHz with a 1-s sample time over 11 hours, corresponding to a fractional instability of 4.3×10^−13. Furthermore, a dynamic optical sampling by repetition-rate tuning has been manifested with a fast refresh rate at 100 kHz and a broad scanning range over 305 ps. The demonstrated passive servo action may provide a simple yet effective way to stabilize the repetition rate with high precision, large bandwidth and wide tunability.
SN  - 2331-8422
ER  -