A. Bhattacharya et al., EFFECT OF ELEMENT WIDTH ON ABOVE-THRESHOLD BEHAVIOR OF ANTIGUIDED DIODE-LASER ARRAYS, Electronics Letters, 34(1), 1998, pp. 84-85
The authors analyse the effect of element width on the modal behaviour
of resonant antiguided diode laser arrays at high drive levels above
threshold. Intra-element gain spatial hole burning causes modes adjace
nt to the resonant (in-phase) mode to eventually reach threshold, the
onset of which is hastened as element widths get larger than the carri
er diffusion length; this is in excellent agreement with experimental
observations.