| http://www.w3.org/ns/prov#value | - miconductor layer, said optically active layer, said second optical waveguide layer, and said first cladding layer containing two parallel grooves, passing completely through all of said layers except for said substrate, so as to form a mesa stripe between said grooves; said semiconductor laser diode further comprising: a current blocking layer of p-type semiconductor material, formed over said se
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