Simultaneous dual-wavelength CW operation using 4F3/2–4I13/2 transitions in Nd:YVO4 crystal

We experimentally demonstrate a dual-wavelength continuous wave (CW) Nd:YVO4 laser simultaneously operating at 1342 and 1386 nm. A total output power of 439 mW is achieved when the laser is diode-end-pumped at an incident pump power of 2.4 W, indicating a slope efficiency of 35.6%. To the best of our knowledge, it is the first time that simultaneous dual-wavelength CW operation at 1342 and 1386 nm is reported.