Time‐resolved measurement of a single‐photon wave packet with an optical Kerr effect
15:20 - 15:40
Takahiro Takumi, Fumihiro China, Masahiro Yabuno, Shigehito Miki, Hirotaka Terai and Ryosuke Shimizu We present the experimental demonstration of a time-resolved measurement of a single-photon wave packet with a sub-picosecond resolution by means of an optical Kerr gating. Cross-phase modulation induced in a photonic crystal fiber, placed in a Sagnac interferometer, is used in our method. We measure the wave packet of a heralded single-photon from a PPKTP crystal. The observed single-photon wave packet shows the temporal width of ~4 ps, which is a good agreement with the theoretically expected one. In addition, we estimate the temporal resolution of our system to be ~400 fs.
