Frequency pushing in lasers with injected signal

Year: 1986

Authors: Oppo G.L., Politi A., Lippi G.L., Arecchi F.T.

Autors Affiliation: Istituto Nazionale di Ottica, Largo Enrico Fermi 6, 50125 Firenze, Italy;
Dipartimento di Fisica, Università di Firenze, Firenze, Italy

Abstract: Suitable equations for lasers with injected signal are derived in the case of a population decay much slower than the other damping processes. A perturbative approach for a small input field E shows evidence of anomalous pushing of the laser frequency away from the external reference one. A threshold for the appearance of antisynchronized solutions is analytically found and numerically checked. A double-point bifurcation explains the switch from pulled- to pushed-frequency solutions as an exchange with a second branch of auto-Q-switched periodic trajectories. The final analysis of locking threshold allows us to relate the small- and large-E behavior.

Journal/Review: PHYSICAL REVIEW A

Volume: 34(5)      Pages from: 4000  to: 4007

KeyWords: laser; injectd signal;
DOI: 10.1103/PhysRevA.34.4000

Citations: 39
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