Low-frequency fluctuations, which are typical irregular oscillations in edge-emitting semiconductor lasers, are experimentally observed for the y -polarization mode (y is the direction along the optical axis of a laser material) in a vertical-cavity surface-emitting laser with optical feedback.
© 2003 Optical Society of America
Natsuki Fujiwara, Yoshiro Takiguchi, and Junji Ohtsubo, "Observation of low-frequency fluctuations in vertical-cavity surface-emitting lasers," Opt. Lett. 28, 896-898 (2003)