Title :
Spatial distribution of intensity noise in vertical cavity surface emitting lasers
Author :
Romanelli, Marco ; Maurin, I. ; Hermier, J.-P. ; Bramati, A. ; Giacobino, E.
Author_Institution :
Laboratoire Kastler Brossel, Univ. Pierre et Marie Curie, Paris, France
Abstract :
The anticorrelated quantum fluctuations of the two lasing modes of a VCSEL is studied. The behaviour of the fluctuations of TEM00 and TEM01 transverse modes and their correlation is investigated by measuring the transverse spatial distribution of intensity noise of the laser beam. Results are compared with predictions of a full quantum model which include the transverse structure of the lasing modes as well as the spatial correlations created by the competition of different transverse modes. The model includes a spatial dependence of the pump and allows for the simultaneous lasing of two transverse modes. The quantum fluctuations are calculated from the Heisenberg Langevin equations of the system.
Keywords :
fluctuations; laser modes; laser noise; quantum noise; semiconductor device models; semiconductor lasers; shot noise; surface emitting lasers; Heisenberg Langevin equations; TEM00 transverse mode; TEM01 transverse mode; VCSEL; anticorrelated quantum fluctuations; full quantum model; intensity noise; lasing modes; pump spatial dependence; spatial correlations; transverse spatial distribution; vertical cavity surface emitting lasers; Fluctuations; Laser beams; Laser modes; Laser noise; Noise measurement; Predictive models; Pump lasers; Quantum well lasers; Surface emitting lasers; Vertical cavity surface emitting lasers;
Conference_Titel :
Quantum Electronics Conference, 2003. EQEC '03. European
Print_ISBN :
0-7803-7733-8
DOI :
10.1109/EQEC.2003.1314194
