Abstract
Quantum information applications call for information encoding schemes which offer high bitrates and the possibility to encode many qubits onto one carrier. Ultrafast pulsed quantum states of light feature an inherent rich spectral and temporal broadband mode structure, which is uniquely defined by their generation process. In ultrafast parametric downconversion for instance, the pair photons are usually generated in superposition states of many orthogonal broadband modes. Thus, they carry the potential for high dimensional quantum information encoding and high bitrates. However, even though the pulsed mode structure of quantum light is well known (see e.g. [1]), feasible ways of exploiting this natural resource in practical systems have not yet been explored.
© 2011 IEEE
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