Gl. Belenky et al., DIRECT MEASUREMENT OF THE CARRIER LEAKAGE OUT OF THE ACTIVE-REGION ININGAASP INP LASER HETEROSTRUCTURES/, I.E.E.E. transactions on electron devices, 42(2), 1995, pp. 215-218
Leakage of electrons out of the active region of InGaAsP/InP laser het
erostructures at different temperatures was measured by a purely elect
rical method. Comparison of the obtained results with the results of m
odeling indicates that special attention should be paid to the accepto
r doping levels in the p cladding layer immediately adjacent the activ
e region. Lower acceptor concentration may lead to unacceptably high t
hermionic leakage.