摘要: A simple but rigorous analysis of the important sources noise in homodyne detection is presented. Output and signal-to-noise ratios are compared for direct detection, conventional (one-port) homodyning, two-port which one monitors both output ports a 50-50 beam splitter. It shown that homodyning insensitive to local-oscillator quadrature-phase hence provides (1) means detecting reduced fluctuations (squeezing) perhaps more practical than one-port (2) an ratio can be modest significant improvement over detection.
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H. Yuen, J. Shapiro, Optical communication with two-photon coherent states--Part III: Quantum measurements realizable with photoemissive detectors IEEE Transactions on Information Theory. ,vol. 26, pp. 78- 92 ,(1980) , 10.1109/TIT.1980.1056132
GL Abbas, VWS Chan, TK Yee, None, Local-oscillator excess-noise suppression for homodyne and heterodyne detection. Optics Letters. ,vol. 8, pp. 419- 421 ,(1983) , 10.1364/OL.8.000419
Horace P. Yuen, Vincent W. S. Chan, NOISE IN HOMODYNE AND HETERODYNE DETECTION. Optics Letters. ,vol. 8, pp. 177- 179 ,(1983) , 10.1364/OL.8.000177
Carlton M. Caves, Quantum-mechanical noise in an interferometer Physical Review D. ,vol. 23, pp. 1693- 1708 ,(1981) , 10.1103/PHYSREVD.23.1693
J. Shapiro, H. Yuen, A. Mata, Optical communication with two-photon coherent states--Part II: Photoemissive detection and structured receiver performance IEEE Transactions on Information Theory. ,vol. 25, pp. 179- 192 ,(1979) , 10.1109/TIT.1979.1056033
Horace P. Yuen, Two-photon coherent states of the radiation field Physical Review A. ,vol. 13, pp. 2226- 2243 ,(1976) , 10.1103/PHYSREVA.13.2226