Precise tuning of single-photon frequency using optical single sideband modulator

• URL: http://arxiv.org/abs/2003.04486v1
• Date: Tue, 10 Mar 2020 01:21:30 GMT
• Title: Precise tuning of single-photon frequency using optical single sideband modulator
• Authors: Hsin-Pin Lo, and Hiroki Takesue
• Abstract summary: We demonstrate a flexible scheme to interface different-color photons using an optical single sideband (OSSB) modulator. We successfully erased the frequency distinguishability of non-degenerated photon pairs to obtain the Hong-Ou-Mandel interference with a visibility exceeding 90%.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Frequency translation of single photons while preserving their quantum characteristics is an important technology for flexible networking of photonic quantum communication systems. Here we demonstrate a flexible scheme to interface different-color photons using an optical single sideband (OSSB) modulator. By changing the radio-frequency signal that drives the modulators, we can easily shift and precisely tune the frequency of single photons. Using the OSSB modulator, we successfully erased the frequency distinguishability of non-degenerated photon pairs to obtain the Hong-Ou-Mandel interference with a visibility exceeding 90%. We also demonstrated that the level of distinguishability can be precisely controlled by the OSSB modulator. We expect that the OSSB modulator will provide a simple and flexible photonic interface for realizing advanced quantum information systems.

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