GaN-based MQWs-SCH laser diodes (LDs) with Fabry-Perot resonator mirrors fa
bricated by focused ion beam (FIB) etching were demonstrated for the first
time. The diodes show lasing by pulsed current injection at room temperatur
e with a lasing wavelength near 410 nm. FIB etching of the mirrors signific
antly reduced the threshold current from 1.25 to 0.75 A. In addition we stu
died the dependence of I-L characteristics on the successive rotation of th
e etched mirror of a single device and found a strong angular dependence. A
similar study of the tilting angle revealed a very weak variation. (C) 199
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