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Beam converging laser diode by taper ridge waveguide

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5 Author(s)
Uenishi, Y. ; NTT Appl. Electr. Labs., Tokyo, Japan ; Isomura, Y. ; Sawada, R. ; Ukita, H.
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To converge a laser beam parallel to the junction plane, a taper ridged waveguide is fabricated at the tip of the laser diode cavity. The beam converging effect is observed, and the beamwidth parallel to the junction plane is reduced to 1 mu m.<>

Published in:

Electronics Letters  (Volume:24 ,  Issue: 10 )