We report on the generation of broadband noise-like pulses in an Er:Yb doped fiber laser with a tunable bandpass filter in the cavity. Benefit from the filter enhanced spectrum at shorter wavelengths and Raman effect assisted spectrum at longer wavelengths, an excellent flat spectrum with a 3 dB spectral width of 130.2 nm is obtained. This is different from previous traditional methods to achieve broadband noise-like pulses, and the results also represent the widest spectrum directly obtained in an erbium doped fiber laser without the use of any special fibers within the cavity.

中文翻译：

---

基于滤波器的光纤激光器中的宽带类噪声脉冲


我们报告了在腔内带有可调谐带通滤波器的掺铒光纤激光器中产生宽带类噪声脉冲的情况。受益于较短波长处的滤光片增强光谱和较长波长处的拉曼效应辅助光谱，获得了 3 dB 光谱宽度为 130.2 nm 的出色平坦光谱。这与之前实现宽带类噪声脉冲的传统方法不同，并且该结果也代表了在掺铒光纤激光器中直接获得的最宽光谱，而无需在腔内使用任何特殊光纤。