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We experimentally demonstrate transmission of non-orthogonal two-qubit states in a χ(3)-based optical phase-sensitive amplifier (OPSA). State analysis shows that the OPSA improves the transmission probability of both non-orthogonal states without measurable degradation in two-photon visibility.
We report on a single-frequency nested cavity OPO based on OP-GaAs, pumped by a pulsed Tm:YAP microlaser. The threshold energy is 10 μJ and temperature tuning enables to cover the 10.3–10.9 μm range.
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