1. Tunable VCSEL polarization control through dissimilar die bonding

    Tunable VCSEL polarization control through dissimilar die bonding

    A design and method for introducing asymmetric crystal strain to control polarization in a tunable VCSEL, either optically or electrically pumped. The invention is especially relevant to wafer- or die-bonded tunable VCSELs. Then, mechanical stress is applied to the half VCSEL device by asymmetric arrangement of metal bond pads.

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