Title :
High singlemode output power from long-wavelength VCSELs using curved micro-mirrors for mode control
Author :
Kögel, B. ; Maute, M. ; Halbritter, H. ; Jatta, S. ; Böhm, G. ; Amann, M.-C. ; Meissner, P.
Author_Institution :
Inst. fur Hochfrequenztechnik, Tech. Univ. Darmstadt, Germany
Abstract :
Concave curved micro-mirrors enable record high 2.8 mW singlemode emission from long-wavelength vertical-cavity surface-emitting lasers with large current apertures up to 12 μm. Higher-order transverse modes are suppressed by more than 48 dB, while polarisation control by a dominating mirror asymmetry is demonstrated after coupling 1.9 mW into a singlemode fibre.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; laser modes; light polarisation; micromirrors; quantum well lasers; surface emitting lasers; 2.8 mW; InGaAlAs; VCSEL; concave curved micromirrors; high single mode output power; long-wavelength vertical-cavity surface-emitting lasers; mirror asymmetry; mode control; multi-quantum well amplifying region; polarisation control; single mode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20052328
