Schumaker, Bonny L. (1984) Noise in homodyne detection. Optics Letters, 9 (5). pp. 189-191. ISSN 0146-9592 http://resolver.caltech.edu/CaltechAUTHORS:SCHUol84
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A simple but rigorous analysis of the important sources of noise in homodyne detection is presented. Output noise and signal-to-noise ratios are compared for direct detection, conventional (one-port) homodyning, and two-port homodyning, in which one monitors both output ports of a 50-50 beam splitter. It is shown that two-port homodyning is insensitive to local-oscillator quadrature-phase noise and hence provides (1) a means of detecting reduced quadrature-phase fluctuations (squeezing) that is perhaps more practical than one-port homodyning and (2) an output signal-to-noise ratio that can be a modest to significant improvement over that of one-port homodyning and direct detection.
|Additional Information:||© Copyright 1984 Optical Society of America Received October 11, 1983; accepted February 22, 1984 This research was supported in part by National Science Foundation Grant ASTS2-14126.|
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|Deposited On:||12 May 2006|
|Last Modified:||26 Dec 2012 08:52|
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