Mj. Noble et al., CALCULATION AND MEASUREMENT OF RESONANT-MODE BLUESHIFTS IN OXIDE-APERTURED VCSELS, IEEE photonics technology letters, 10(4), 1998, pp. 475-477
As the aperture size of oxide-apertured vertical-cavity surface-emitti
ng lasers (VCSEL's) shrinks, the lasing wavelength blueshifts. We have
calculated this effect using both a scalar effective index model and
a full-vector weighted index model. Results were compared against expe
rimental data fbr two different VCSEL designs emitting near 780 and 85
0 nm. We find that the full-vector weighted index calculation matches
the data remarkably well, while the scalar effective index calculation
underestimates the blueshift.