Acta Optica Sinica, Volume. 36, Issue 7, 727001(2016)
Quantum Ranging Scheme Based on Two-Mode Squeezing Light
A quantum ranging scheme based on two-mode squeezing and homodyne detector is proposed to avoid the difficulties of generating and maintaining of quantum states in multi-photon entangled ranging schemes and optical-delay-caused measuring range blocking in quantum correlation distance ranging schemes. Using the character that the two-mode squeezing beams has the largest cross-correlation of the corresponding quadrature of the two modes when the synchronization, the reference photocurrent is delayed to match the signal photocurrent in order to acquire the distance ranging. On the basis of double balanced homodyne detector to detect the quadrature of entangled light beam, the methods of correlation function estimation, correlation noise estimation and correlation matrix analysis are proposed to estimate the delay time, respectively. The theoretical demonstration and simulation verifications show that the proposed quantum ranging scheme has certain feasibility and practical significance.
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Wang Xi, Chen Shuxin, Wu Dewei, Yang Chunyan, Chen Kun, Li Xiang. Quantum Ranging Scheme Based on Two-Mode Squeezing Light[J]. Acta Optica Sinica, 2016, 36(7): 727001
Category: Quantum Optics
Received: Jan. 21, 2016
Accepted: --
Published Online: Jul. 8, 2016
The Author Email: Xi Wang (wisteriawang61@sina.com)