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We consider novel method for implementation of hybrid entanglement betweenmicroscopic and macroscopic states on output of spontaneous parametric downconverter through the depletion of the pump wave. The generated signal, idlerand pumping fields show weak entanglement. We characterize it and show thelimits of applicability of the depleted pump regime. Testing method of thehybrid entanglement is proposed. The hybrid entanglement is tested byconditional generation of maximally entangled states of two qubits and qutritsregardless of its smallness. Possibilities to enhance the hybrid entanglementand, as consequence, success probabilities of the conditional generation areconsidered. The optical scheme is realizable in practice and can do withoutphoton number resolving detection.

Hybrid entanglement caused by depletion of pump on output of spontaneous parametric down converter