Mach-Zehnder interferometer using frequency-domain beamsplitter
Abstract
We demonstrated the first-order interference between coherent light at 1580 nm and 795 nm by using frequency-domain Mach-Zehnder interferometer (MZI). The MZI is implemented by two frequency-domain BSs based on a second-order nonlinear optical effect in a periodically-poled lithium niobate waveguide with a strong pump light. We achieved the visibility of over 0.99 at 50% conversion efficiencies of the BSs. Toward photonic quantum information processing, sufficiently small background photon rate is necessary. From the measurement results with a superconducting single photon detector, we discuss the feasibility of the frequency-domain MZI in a quantum regime. Our estimation shows that single photon interference with the visibility above 0.9 is feasible with practical settings.
Cite
@article{arxiv.1703.08114,
title = {Mach-Zehnder interferometer using frequency-domain beamsplitter},
author = {Toshiki Kobayashi and Daisuke Yamazaki and Kenichiro Matsuki and Rikizo Ikuta and Shigehito Miki and Taro Yamashita and Hirotaka Terai and Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
journal= {arXiv preprint arXiv:1703.08114},
year = {2017}
}
Comments
9 pages, 7 figures