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Coupling of large optical loss with Auger recombination in 1.3 μm InGaAsP lasers investigated using hydrostatic pressure
Author(s) -
Jin S. R.,
Sweeney S. J.,
Adams A. R.,
Thijs P. J. A.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301618
Subject(s) - auger effect , auger , hydrostatic pressure , laser , atomic physics , recombination , current (fluid) , spontaneous emission , coupling (piping) , materials science , chemistry , optoelectronics , optics , physics , thermodynamics , biochemistry , gene , metallurgy
InGaAsP lasers with different losses have been investigated under hydrostatic pressure at room temperature. It is shown that, for large loss devices, the threshold current decreases more rapidly with increasing pressure than the expected variation of the typical direct band‐to‐band Auger recombination currents. We also measured the spontaneous emission in a large loss device to determine the pressure dependence of the respective recombination current component at laser threshold. It is found that the Auger current reduces strongly and the radiative current also decreases with increasing pressure. This is attributed to a reduction of the total loss coupled with Auger recombination with pressure.