CW lasing in the 1280-1340 nm region is demonstrated from molecular iodine gas contained in a hollow-core kagome structured photonic crystal fiber when optically pumped at 532 nm.
Lasing from HCN gas contained in HC-PCF is observed for the first time. Mid-IR pulses (3.15 and 3.09 μm) were generated by optically pumping at 1.54 μm. A <sup>12</sup>C<sub>2</sub>H<sub>2</sub>-filled gas laser is also studied quantitatively.
Lasing from population inversion is demonstrated from gas contained in a hollow-core kagome structured photonic crystal fiber. Laser pulses in the mid-IR (3.1–3.2 µm) were generated by optically pumping at λ ∼ 1.5 µm.
We demonstrate what we believe is the first hollow fiber gas laser based on population inversion. A single-cell-defect Kagome fiber with a core diameter of about 40 microns was filled with a few torr of acetylene (<sup>12</sup>C<inf>2</inf>H<inf>2</inf>). Acetylene has absorption transitions in the attractive telecommunication C band region and recently… (More)