Io. Lelong et al., A PULSED HIGH-POWER QUANTUM-WELL LASER USING AN ASYMMETRIC WAVE-GUIDE, Semiconductor science and technology, 11(4), 1996, pp. 568-570
A 0.96 mu m, strained InGaAs quantum well laser, reaching a record hig
h power of 31 W at 50 A in 230 ns pulsed operation, is reported. The n
ew structure is based on a wide asymmetric multimode optical waveguide
that reduces the optical power density on the laser's mirrors, to pro
duce a higher maximum output power. Modal discrimination is obtained b
y proper positioning of the quantum well.