从波长/偏振多路光纤激光器中产生单腔三重炸弹脉冲

Ying Qin, Guoqing Hu, Tengfei Wu, Guangwei Chen, Zhehai Zhou, Li Chen, Pengyu Yan, Yue Zhao, Xiaochun Liao, Hetian Li
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引用次数: 0

摘要

通过波长/偏振复用技术,提出了一种单腔三复合全光纤激光器。引入了一个可变光衰减器,以均衡掺铒光纤的 1530nm 和 1550nm 增益曲线,实现双波长脉冲。它们的重复率差异达到千赫级。同时,通过进一步调整腔内偏振态,可在 1550 纳米增益区获得重复率相差数十赫兹的偏振多路双梳脉冲。三倍频脉冲的最大和最小重复频率差超过一个数量级,并具有合格的被动相互相干性。这些结果表明,三重梳状源在多重梳状测量(如三重梳状测距和频率测量等)方面极具潜力。
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The generation of single-cavity triple-comb pulses from a wavelength/polarization multiplexed fiber laser
A single-cavity triple-comb all-fiber laser is proposed by wavelength/polarization multiplexing. A variable optical attenuator is introduced to equalize the 1530-nm and 1550-nm gain profile of erbium-doped fiber for dual-wavelength pulses. Their repetition rate difference reach kHz level. Meanwhile, by further adjusting the intracavity polarization state, polarization-multiplexed dual-comb pulses with tens-of-Hz repetition rate difference in the 1550-nm gain region are obtained. The more than one-order-of-magnitude difference between the maximum and minimum repetition frequency difference and qualified passive mutual coherence of triple-frequency pulses is highlighted. These results indicate a highly potential triple-comb source for multiple-comb metrology such as triple-comb ranging and frequency measurement and so on.
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