Formation and annihilation of laser light pulse quanta in thermodynamic-like pathway

Details Formation and annihilation of laser light pulse quanta in thermodynamic-like pathway Formation and annihilation of laser light pulse quanta in thermodynamic-like pathway

2004-11-19

arxiv.org/abs/cond-mat/0411525v2

Phys. Rev. Lett., vol 93, 153901 (2004)

Physics

Condensed Matter

Statistical Mechanics

REVTeX, 5 pages, 6 eps figures. Experimental animation downloadable in avi format

Scientific paper

10.1103/PhysRevLett.93.153901

We present a theoretical and experimental study of multiple pulse formation in passively mode-locked (PML) lasers. Following a statistical mechanics approach, the study yields a thermodynamic-like "phase diagram" with boundaries representing cascaded first order phase transitions. They correspond to abrupt creation or annihilation of pulses and a quantized RF power behavior, as system parameters (noise and/or pumping levels) are varied, in excellent accordance with the experiments. Remarkably, individual pulses carry an almost constant quantum of energy.

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