Preamplified photodetectors for high-fidelity postselecting optical devices

Jeffers, John (2007) Preamplified photodetectors for high-fidelity postselecting optical devices. Physical Review A, 75 (1). 012335/1-12335/5. ISSN 1094-1622

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    Abstract

    The fidelity of postselecting devices based on direct photon number detection can be significantly improved by insertion of a phase-insensitive optical amplifier in front of the detector. The scheme is simple, and the cost to the probability of obtaining the appropriate detector outcome is low.