Simultaneous single-mode oscillations on different transitions were observed in a laser-diode-pumped microchip LiNdP<sub>4</sub>O<sub>12</sub> laser. The unusual modal-output characteristics of the laser were reproduced by multitransition-oscillation laser model equations that include cross saturation of population inversions with a strong spatial exponential decay and transition-dependent resonant reabsorption loss.
© 1998 Optical Society of America
Kenju Otsuka, Ryoji Kawai, Yusuke Asakawa, Paul Mandel, and E. A. Viktorov, "Simultaneous single-frequency oscillations on different transitions in a laser-diode-pumped LiNdP4O12 laser," Opt. Lett. 23, 201-203 (1998)