| 摘要 |
Provided is a vertical cavity surface emitting laser (VCSEL) including a feedback member which feeds a portion of light externally emitted from a resonator for generating and amplifying a laser beam, back into the resonator by reflecting the same and acts as a concave mirror for the resonator. The VCSEL operates predominantly in the single fundamental transverse mode, emitting a laser output having a peak intensity at its center. The VCSEL can be manufactured by a simple process and provides excellent reproducibility
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