Abstract

AbstractWe demonstrated a narrow‐linewidth Ho:yttrium aluminum garnet (YAG) injection‐locked laser by using a 1908 nm thulium‐doped fiber laser as a pumping source to generate 2.09 μm single‐frequency pulses. A compact single‐longitudinal‐mode nonplanar ring oscillator (NPRO) based on Ho:YAG material with a beam quality factor of 1.01 at the central wavelength of 2090.91 nm was considered as the seed source. In the experiment, the pulse energy of 3.6 mJ with a pulse width of 161.6 ns from single‐frequency Ho laser was achieved at a pulse repetition frequency (PRF) of 100 Hz. The linewidth of the single‐frequency pulse spectrum monitored through the heterodyne method was approximately 1.9 MHz at the lowest Ho laser energy.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call