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Expanded-mode semiconductor laser with tapered-rib adiabatic-following fiber coupler

Vawter, G.A.; Smith, R.E.; Hou, H.; Wendt, J.R.

A new diode laser using a Tapered-Rib Adiabatic-Following Fiber Coupler to achieve 2D mode expansion and narrow, symmetric far-field emission without epitaxial regrowth or sharply-defined tips on tapered waveguides is presented.