Product Code: ICAL05_405

High Power GaInAs VCSEL Arrays
Authors:
J. Watson, Novalux, Inc.; Sunnyvale CA USA
R. Nabiev, Novalux, Inc.; Sunnyvale CA USA
Aram Mooradian, Novalux, Inc.; Sunyvale CA USA
M. Jansen, Novalux, Inc.; Sunnyvale CA USA
G. Carey, Novalux, Inc.; Sunnyvale CA USA
S. Hallstein, Novalux, Inc.; Sunnyvale CA USA
B. Cantos, Novalux, Inc.; Sunnyvale CA USA
W. Hitchens, Novalux, Inc.; Sunnyvale CA USA
F. Fang, Novalux, Inc.; Sunnyvale CA USA
G. Green, Novalux, Inc.; Sunnyvale CA USA
K. Scholz, Novalux, Inc.; Sunnyvale CA USA
R. Dato, Novalux, Inc.; Sunnyvale CA USA
Presented at ICALEO 2005

We present details of the performance of GaInAs VCSEL arrays producing cw powers in excess of 80W from a 5mm by 5mm array with power densities greater than 320W/cm2. The maximum power conversion efficiency of the arrays was more than 32%. Spectral width of the emission at 978-nm was less than 2-nm FWHM over the entire operating range indicating that the total temperature variation over the array was less than 3 degrees C at full power with all elements driven in parallel. Far field emission of the array was circular with full angle divergence of 13.2 degrees FWHM at 80W.