Quantum measurement of amplitude fluctuation is performed by the injection of 2.5-dB amplitude-squeezed light produced by a quantum-well laser into the dark port of a beam splitter as the meter wave. It is shown that the measurements satisfy the criteria of quantum nondemolition measurement. The measured transfer coefficient and the quantum-state preparation ability are 1.07 and 0.8, respectively.
© 2001 Optical Society of America
Original Manuscript: February 14, 2001
Published: November 10, 2001
Junxiang Zhang, Tiancai Zhang, Ruifang Dong, Jing Zhang, Changde Xie, and Kunchi Peng, "Quantum measurements with an amplitude-squeezed-light beam splitter," Appl. Opt. 40, 5949-5953 (2001)