Ultra-fast Hong-Ou-Mandel interferometry via temporal filtering
- URL: http://arxiv.org/abs/2009.00255v2
- Date: Wed, 27 Oct 2021 06:00:18 GMT
- Title: Ultra-fast Hong-Ou-Mandel interferometry via temporal filtering
- Authors: Yoshiaki Tsujimoto, Kentaro Wakui, Mikio Fujiwara, Masahide Sasaki,
Masahiro Takeoka
- Abstract summary: We show a high-visibility interference between two independent HSPs generated by SPDC with 3.2 GHz-repetition-rate mode-locked pump pulses.
The observed visibility of 0.88(3) is in good agreement with our theoretical model.
- Score: 5.02231401459109
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Heralded single photons (HSPs) generated by spontaneous parametric
down-conversion (SPDC) are useful resource to achieve various photonic quantum
information processing. Given a large-scale experiment which needs multiple
HSPs, increasing the generation rate with suppressing higher-order pair
creation is desirable. One of the promising ways is to use a pump laser with a
GHz-order repetition rate. In such a high repetition rate regime, however,
single-photon detectors can only partially identify the pulses. Hence, we
develop a simple model to consider that effect on the spectral purity, and
experimentally demonstrate a high-visibility Hong-Ou-Mandel interference
between two independent HSPs generated by SPDC with 3.2 GHz-repetition-rate
mode-locked pump pulses. The observed visibility of 0.88(3) is in good
agreement with our theoretical model.
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