Several types of instability in passive Q switching and optical bistability are observed in a number of 10-μm laser lines in a N<sub>2</sub>O laser with intracavity saturable absorbers such as NH<sub>3</sub>, SF<sub>6</sub>, C<sub>2</sub>H<sub>4</sub>, C<sub>2</sub>H<sub>3</sub>Cl, and CCl<sub>2</sub>F<sub>2</sub>. The observed pulse shapes are reproduced well by a calculation based on the recently proposed rate-equation model. Characteristic dependences of passive Q switching and bistability on the laser parameters are explained with a phase diagram derived theoretically.
© 1988 Optical Society of America
Feng-Lei Hong, Maki Tachikawa, Bo-Feng Li, and Tadao Shimizu, "Passive Q-switching instability and bistability of a N2O laser with intracavity saturable absorber," J. Opt. Soc. Am. B 5, 2315-2321 (1988)