This research investigates and demonstrates a unique configuration of a multiwavelength fiber ring laser covering far L and U bands by employing a booster optical amplifier (BOA), a stabilizer beam, and a Mach-Zehnder interferometer (MZI) in a dual cavity arrangement. By reducing the loss in the central cavity from 10 to 0 dB, the number of generated lasing wavelengths can be increased from 15 to 30, respectively. The observed side mode suppression ratio (SMSR) for most of these lasing wavelengths is larger than 60 dB. The generated lasing lines are relatively stable where peak power and wavelength variations of within ~1 dB and ~0.08 nm are observed.

中文翻译：

---

在双腔配置中覆盖远L和U波段的多波长光纤激光器

这项研究调查并演示了通过在双腔布置中采用增强型光放大器（BOA），稳定器光束和Mach-Zehnder干涉仪（MZI）来覆盖远L和U波段的多波长光纤环形激光器的独特配置。通过将中心腔中的损耗从10 dB减小到0 dB，可以将产生的激光波长的数量分别从15增加到30。对于大多数这些激光波长，观察到的边模抑制比（SMSR）大于60 dB。产生的激射线相对稳定，在此观察到的峰值功率和波长变化在〜1 dB和〜0.08 nm之内。