Theory of Optical Quadrature Measurement Through Symmetric Beamsplitter Studied by Virtue of the IWOP Technique.

We find that the quadrature measurement theory through symmetric beamsplitter can be elaborated more precisely and more directly by virtue of the IWOP technique. Both the normally ordered and anti-normally ordered generating photocurrent operator for mements of photocurrent probability distribution are derived, and their applications are respectively presented. [ABSTRACT FROM AUTHOR]