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Spectra of gain, absolute refractive index, and wave-guide confinement factor of strained single quantum-well GaInP laser from spontaneous emission

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1 Author(s)
Linzhang Wu ; Dept. of Precision Instrum., Tsinghua Univ., Beijing, China

Both unamplified and amplified spontaneous emission was measured from a compressively-strained single quantum-well GaInP laser. By using a novel and self-consistent technique briefly described in the text, the data were used to systematically determine the gain-peak energy, quasi-Fermi level separation, intrinsic optical loss, absolute refractive index, and optical waveguide confinement factor and gain, including the dispersion of refractive index for a given current. During this process, there is no need for a knowledge of parameters that are difficult to experimentally check with enough accuracy. Furthermore, the effect of dispersion of the refractive index on the optical waveguide confinement factor is discussed

Published in:

IEEE Journal of Quantum Electronics  (Volume:37 ,  Issue: 3 )