Abstract
Single-frequency operation or locking in a lateral array of three laser oscillators is studied within the composite-cavity-mode approach. We compute the regions of stable locking, which have a nontrivial shape in the plane of coupling strength versus frequency detuning. The locking regions depend drastically on the amount of amplitude-phase coupling of the lasing field that is quantified by the parameter. For small , locking is possible for arbitrary coupling, but only if the middle laser has sufficient frequency detuning from the two outer lasers. In contrast, for larger , locking is only possible for weak to moderate coupling, provided that all three lasers have similar frequencies.
- Received 23 March 2009
DOI:https://doi.org/10.1103/PhysRevE.80.026212
©2009 American Physical Society