M. Agne et al., GUIDED MODES AND FAR-FIELD PATTERNS OF LEAD CHALCOGENIDE BURIED HETEROSTRUCTURE LASER-DIODES, Infrared physics & technology, 35(1), 1994, pp. 47-58
The far-field of several PbSe/PbEuSe buried heterostructure (BH) laser
diodes has been measured. An algorithm for the calculation of the pro
pagation constant and transverse mode function of waveguide structures
has been used to calculate the near- and far-field pattern. The theor
etical and experimental results are presented and compared with each o
ther. Polarization measurements in the far-field show simultaneous emi
ssion of transverse electric (TE) and transverse magnetic (TM) modes f
rom some of the laser diodes.