Frequency pushing in lasers with injected signal
- 1 November 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 34 (5) , 4000-4007
- https://doi.org/10.1103/physreva.34.4000
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 ɛ 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-ɛ behavior.Keywords
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