Institute of Applied Physics, University of Bern, Bern, Switzerland.
Opt Lett. 2011 Sep 15;36(18):3569-71. doi: 10.1364/OL.36.003569.
We investigate the dynamics of an erbium-doped fiber ring laser that is equipped with an intracavity hollow core photonic crystal fiber gas cell. The cell is filled with acetylene as a saturable absorber. We observe cw operation at low pressures, Q switching at intermediate pressure levels, and mode locking at high pressures applied. Moreover, we show that the transition from the cw to the pulsed mode may be exploited for sensitive gas detection.
我们研究了一种掺铒光纤环形激光器的动力学特性，该激光器配备了腔内中空芯光子晶体光纤气体池。该池充满了乙炔作为可饱和吸收体。我们观察到在低气压下连续波运行，在中等压力水平下 Q 开关，在高气压下锁模。此外，我们还表明，从连续波到脉冲模式的转变可用于灵敏的气体检测。
