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We experimentally demonstrate deterministic polarization mode control in VCSEL utilizing a single-layer high-index-contrast subwavelength grating mirror. Orthogonal polarization suppression ratio of 36 and 28 dB was obtained under both CW and large-signal pulsed operation.
Polarization stable, wafer-fused 1310 nm VCSELs employing sub-wavelength shallow gratings on their top DBR and emitting 1.5 mW single mode output power in the 20degC-75degC temperature range are demonstrated.
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