Title :
Fundamental-Lateral Mode Stabilized High-Power Ridge-Waveguide Lasers With a Low Beam Divergence
Author :
Wenzel, H. ; Bugge, F. ; Dallmer, M. ; Dittmar, F. ; Fricke, J. ; Hasler, K.-H. ; Erbert, G.
Author_Institution :
Ferdinand-Braun-Inst. fur Hochstfrequenztechnik, Berlin
Abstract :
We compare ridge-waveguide lasers with trench widths of 5 and 20 mum. The emission wavelength is around 1064 nm and the ridge width is 5 m. The maximum output power exceeds 2 W. The 5-mum trench-width device exhibits a much more stable lateral far-field. The full-width at half-maximum of the vertical far-field profile is only 15deg due to a super-large optical cavity.
Keywords :
laser beams; laser modes; laser stability; optical fabrication; ridge waveguides; semiconductor lasers; waveguide lasers; high-power lasers; laser stability; lateral mode stability; optical fabrication; ridge-waveguide lasers; semiconductor lasers; size 20 mum; size 5 mum; wavelength 1064 nm; Fiber lasers; Laser beams; Laser modes; Laser stability; Optical pumping; Power generation; Pump lasers; Semiconductor lasers; Stimulated emission; Waveguide lasers; High-power lasers; ridge-waveguide (RW) lasers; semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.913328
