Abstract

Injection locking phenomena in oscillators has been studied in many laser systems (see for example [1]) including semiconductor lasers [2]. The vertical-cavity surface-emitting laser (VCSEL) provides an interesting system to investigate injection locking behavior due to its short cavity length (~ 1 μm), which also results in a single lasing cavity longitudinal mode. We have studied locking dynamics in a highly noisy laser system in the strong external injection regime and observed relaxation oscillation frequency generation of up to 50 GHz.

© 1992 Optical Society of America