TY - JOUR
T1 - Pulsed twin beams of light
AU - Ayẗr, Orhan
AU - Kumar, Prem
PY - 1990
Y1 - 1990
N2 - Pulsed twin beams of light have been generated using an optical-parametric amplifier that is pumped by the second harmonic of a mode-locked and Q-switched neodymium:yttrium aluminum garnet laser. The intensity noise levels on the direct-detected signal and idler beams are found to be correlated by more than 15 dB, and the subtracted noise falls below the quantum limit by more than 6 dB (75%). To our knowledge, this is the first observation of pulsed twin beams of light, and yields the highest quantum-noise reduction observed in any experiment to date. Our measurements are in excellent agreement with the quantum theory of a nondegenerate optical-parametric amplifier.
AB - Pulsed twin beams of light have been generated using an optical-parametric amplifier that is pumped by the second harmonic of a mode-locked and Q-switched neodymium:yttrium aluminum garnet laser. The intensity noise levels on the direct-detected signal and idler beams are found to be correlated by more than 15 dB, and the subtracted noise falls below the quantum limit by more than 6 dB (75%). To our knowledge, this is the first observation of pulsed twin beams of light, and yields the highest quantum-noise reduction observed in any experiment to date. Our measurements are in excellent agreement with the quantum theory of a nondegenerate optical-parametric amplifier.
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U2 - 10.1103/PhysRevLett.65.1551
DO - 10.1103/PhysRevLett.65.1551
M3 - Article
C2 - 10042299
AN - SCOPUS:0001230256
SN - 0031-9007
VL - 65
SP - 1551
EP - 1554
JO - Physical review letters
JF - Physical review letters
IS - 13
ER -