Metal-insulator transition in the spectrum of a frequency-modulation mode-locked laser
- 14 January 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 77 (1) , 015807
Abstract
It is theoretically shown that the spectrum of a frequency mode-locked laser with an intracavity dielectric plate, which modulates the cavity axial mode resonances, can undergo a kind of metal-insulator transition analogous to that encountered in the incommensurate Harper model of solid-state physics. The transition should be observable as a rather abrupt spectral broadening of the laser emission, accompanied by a transition from exponential to Gaussian spectral localization, as the modulation depth is increased above a threshold value.Keywords
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