全光纤保偏图9激光器,频率锁定,重复频率为247mhz。

Applied optics Pub Date : 2025-09-20 DOI:10.1364/AO.574294
T F Wu, Y J Yang, C Y Li, C Q Xia, J B Han, Y W Gao, L Zhang
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引用次数: 0

摘要

我们报道了一种全光纤保偏(PM)铒基非线性放大环镜锁模激光器(图9)。由于混合光学元件,激光器可以在一个简单和紧凑的配置操作,高重复率达到247mhz。通过平衡掺铒有源光纤和PM-1550无源光纤的长度,将腔色散设计为接近于零到负值。中心波长为1567 nm, 3db带宽为26.3 nm。脉冲持续时间测量为245fs。此外,基本重复频率被锁定在一个稳定的无线电参考。频率稳定性的艾伦偏差在1s栅极时间计算为3.146×10-12。据我们所知,这是全光纤图9结构锁模激光器的最高重复率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
All-fiber polarization-maintained figure-9 laser with frequency locking at a repetition rate of 247  MHz.

We report on an all-fiber polarization-maintained (PM) erbium-based nonlinear amplifying loop mirror mode-locked laser (figure-9). Due to a hybrid optical element, the laser can be operated in a simple and compact configuration with a high repetition rate reaching up to 247 MHz. By balancing the length of the Er-doped active fiber and the PM-1550 passive fiber, the cavity dispersion was designed to be near zero to negative. The central wavelength was centered at 1567 nm with a 3 dB bandwidth of 26.3 nm. The pulse duration was measured to be 245 fs. Further, the fundamental repetition frequency was locked to a stable radio reference. The Allan deviation for frequency stability was calculated to be 3.146×10-12 at 1 s' gate time. To our knowledge, this is the highest repetition rate for all-fiber figure-9 structure mode-locked lasers.

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