Pulse-resolved measurement of quadrature phase amplitudes of squeezed pulse trains at a repetition rate of 76 MHz.
We report pulsed homodyne detection of squeezed pulses at a repetition rate of 76 MHz. Measurement of individual pulses, which were interrogated by the correlation coefficient between adjacent pulses, was realized. A homodyne detector was constructed using a low-noise, high-speed operational amplifier; it had a usable bandwidth of 250 MHz. We observed 2.3 dB of squeezing in both the time and frequency domains.
Okubo
Ryuhi
R
Department of Physics, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 171-8588, Japan and CREST, Japan Science and Technology Agency, 1-9-9 Yaesu, Chuou-ku, Tokyo, 103-0028, Japan. ryuhi17@qo.phys.gakushuin.ac.jp
Hirano
Mayumi
M
Zhang
Yun
Y
Hirano
Takuya
T