LI Jing, QIU Yun-tao, CAO Yin-hua etc. High Brightness Tapered Diode Laser[J]. Chinese Journal of Luminescence, 2016,37(8): 990-995 DOI: 10.3788/fgxb20163708.0990.
Tapered diode laser with ridge waveguide was introduced and formed through etching the wafer with asymmetrical waveguide structure and double quantum walls. In the laser
the negative effect of p-cladding layer was decreased and the vertical divergence angle was reduced. The high brightness power is arrived on account of the combination of the ridge waveguide and the taper waveguide. In experiment
the laser delivers 976 nm and 4 W CW at 7 A current. The slow direction beam quality and the fast direction beam quality are measured of 1.593 mmmrad and 0.668 mmmrad
respectively.
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references
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