Figure 2
From: Observation of direction instability in a fiber ring laser

General evolution of (a) the combined output power and (b) the directional output powers demonstrating a bistability and unidirectional lasing behavior.
From: Observation of direction instability in a fiber ring laser

General evolution of (a) the combined output power and (b) the directional output powers demonstrating a bistability and unidirectional lasing behavior.