Efficient homodyne measurement of picosecond squeezed pulses with pulse shaping technique

Yujiro Eto; Akane Koshio; Akito Ohshiro; Junichi Sakurai; Keiko Horie; Takuya Hirano; Masahide Sasaki

doi:10.1364/OL.36.004653

Efficient homodyne measurement of picosecond squeezed pulses with pulse shaping technique

Opt Lett. 2011 Dec 1;36(23):4653-5. doi: 10.1364/OL.36.004653.

Authors

Yujiro Eto¹, Akane Koshio, Akito Ohshiro, Junichi Sakurai, Keiko Horie, Takuya Hirano, Masahide Sasaki

Affiliation

¹ National Institute of Information and Communications Technology (NICT), 4-2-1 Nukui-kitamachi, Koganei, Tokyo 184-8795, Japan. yujiro.eto@nict.go.jp

PMID: 22139273
DOI: 10.1364/OL.36.004653

Abstract

We report on the detection of picosecond pulsed squeezed light generated by an optical parametric amplification in a periodically poled MgO:LiNbO(3) waveguide. By using a temporally shaped local oscillator in a balanced homodyne detection, we obverved the squeezing of -5.0 dB below the shot noise level. The squeezing level at the exit of the waveguide was estimated to be -9.7±0.8 dB.