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Single-mode power dependence on surface relief size for mode-stabilized oxide-confined vertical-cavity surface-emitting lasers

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3 Author(s)
Martinsson, H. ; Photonics Lab., Chalmers Univ. of Technol., Goteborg, Sweden ; Vukusic, J.A. ; Larsson, A.

We have studied the mode behavior of oxide-confined vertical-cavity surface-emitting lasers (VCSELs) with a surface relief for fundamental mode selection. The dependence of single-mode power on the surface relief diameter was measured and compared with numerically calculated values. VCSELs with diameters of 9 and 12 /spl mu/m were equipped with surface reliefs with diameters in the range 4-10 /spl mu/m. The results show that there exists an optimum relief diameter for each VCSEL size. A maximum single-mode power of 2.2 mW was achieved for a 9-/spl mu/m-diameter VCSEL with a 4-/spl mu/m-diameter surface relief.

Published in:
Photonics Technology Letters, IEEE  (Volume:12 ,  Issue: 9 )

Date of Publication: Sept. 2000

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