Push-pull modulation of lateral coupling of dual VCSEL cavities using a bow-tie shape
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説明
We propose the lateral coupling of dual VCSEL cavities using a bow-tie shape connection for increasing the modulation bandwidth. The 3-D modeling shows no-noticeable radiation loss when two oxide-defined VCSEL cavities are coherently coupled. Transverse-mode switching offers a unique modulation concept that makes intensity modulation while total photon density inside the coupled cavities is unchanged under push-pull current modulation. Large modulation bandwidth free from relaxation oscillation frequencies can be expected. We fabricated 980nm laterally coupled cavity VCSELs with a bow-tie shape oxide aperture and demonstrated the transverse-mode switching under push-pull operations.
収録刊行物
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- SPIE Proceedings
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SPIE Proceedings 8639 86390W-, 2013-03-13
SPIE