Noise Performance and Long-Term Stability of Near- and Mid-IR Gas-Filled Fiber Raman Lasers

In this letter, the characteristics of noise and long-term stability near- mid-infrared (near-IR mid-IR) gas-filled fiber Raman lasers have been investigated for first time. The results reveal that an increase in pulse energy is associated with a decrease noise, relative peak intensity (RIN) always lower than (REN). We also demonstrate drift power are directly linked high amount heat release during Stokes generation. demonstrated performance provide necessary references potential spectroscopic applications as well further improvements emerging mid-IR hollow-core (HCF) laser technology.