Dynamics of broad area diode lasers with phase conjugate feedback

The dynamic behavior of an 800 nm, 500 mW broad area diode laser subjected to phase conjugate feedback was investigated. The phase conjugation was achieved with a barium titanate crystal in a self-pumped internal reflection geometry. The observed results are compared to the behaviors of the broad area diode laser subject to conventional optical feedback and to an 850 nm 50 mW single mode diode laser subject to phase conjugate feedback. The range of feedback fractions that produce a dynamically unstable output power was found to be distinct for certain cases.1 page(s