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

Boris Vodonos·Rafi Weill·Ariel Gordon·Alexander Bekker·Vladimir Smulakovsky·Omri Gat·Baruch Fischer
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Abstract

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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Boris Vodonos, Rafi Weill, Ariel Gordon, Alexander Bekker, Vladimir Smulakovsky, Omri Gat, Baruch Fischer. 2004-11-26. Formation and annihilation of laser light pulse quanta in thermodynamic-like pathway. https://doi.org/10.1103/physrevlett.93.153901

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