DFB laser with integrated waveguide taper grown by shadow masked MOVPE

DFB laser with integrated waveguide taper grown by shadow masked MOVPE

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A novel DFB laser structure is reported, it has an integrated waveguide taper and has enabled 29% butt coupling efficiency into cleaved standard singlemode optical fibre. The taper is fabricated using a shadow masked growth technique which results in a 2-D mode matching taper structure.


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