Fringe visibility and distinguishability in two-path interferometer with an asymmetric beam splitter<xref rid="cpb_28_3_030303_fn1" ref-type="fn">*</xref><fn id="cpb_28_3_030303_fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11434011, 11575058, and 61833010), the “Science and Technology Innovation Platform and Talent Plan” Excellent Talent Award of Hunan Province, China (Grant No. 2017XK2021), the Science Funds from the Ministry of Science and Technology of China (Grant Nos. 2017YFA0304300 and 2016YFA0300601), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB28000000).</p></fn>

Fringe visibility and distinguishability in two-path interferometer with an asymmetric beam splitter**

Project supported by the National Natural Science Foundation of China (Grant Nos. 11434011, 11575058, and 61833010), the “Science and Technology Innovation Platform and Talent Plan” Excellent Talent Award of Hunan Province, China (Grant No. 2017XK2021), the Science Funds from the Ministry of Science and Technology of China (Grant Nos. 2017YFA0304300 and 2016YFA0300601), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB28000000).

Liu Yanjun^{1, 2}, Lu Jing^{1, †}, Peng Zhihui¹, Zhou Lan¹, Zheng Dongning^{2, 3, 4}

The schematic sketch of the general Mach–Zehnder interferometer with the second BS asymmetric, and a WPD is placed in path a.