F.R. Gfeller, P. Buchmann, et al.
Journal of Applied Physics
We report on the fabrication and testing of surface-emitting AlGaAs 3. 5 μm ridge lasers with etched mirrors and 45° internal deflectors. The 45° mirror coupling coefficient and the resulting threshold current penalty have been analyzed theoretically and experimentally. A surface-emitted optical power of 50 mW CW at 26 mA threshold current and external differential efficiency of 57% has been achieved in lateral fundamental-mode operation. The optical power density of 14 mW CW per micrometer ridge width is the highest reported to date and produces two-dimensional surface-emitting laser arrays of diffraction-limited beam quality suitable for optical storage applications. © 1992 IEEE
F.R. Gfeller, P. Buchmann, et al.
Journal of Applied Physics
P. Buchmann, H.P. Dietrich, et al.
Microelectronic Engineering
F.R. Gfeller, D.J. Webb
Journal of Applied Physics
F.R. Gfeller, W. Hirt, et al.
VTC 1996