Chinese Journal of Lasers, Volume. 41, Issue 3, 318001(2014)
Quantum Resonstruction of Wigner Quasiprobability Distribution Function of High Order TEM01 Squeezed States
532 nm and 1064 nm laser outputs of Nd:YVO4-KTP solid laser, as pump beam and seed light, respectively, are injected into a degenerate optical parametric amplifier with a periodically poled KTP crystal. The bright high order transverse mode TEM01 quadrature amplitude squeezed field, which is generated by the nonlinear optical parametric process, is measured to be 2.2 dB squeezing degree with a homodyne detection system. A group of transformed signal data is saved by a digital storage oscilloscope. The Wigner quasiprobability distribution function of the squeezed field in the phase space is reconstructed using quantum tomography technique with the self-made software, and it′s found that there is a good agreement between theoretical and experimental results.
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Yang Rongguo, Zhang Jing, Zhai Shuqin, Liu Xianfeng. Quantum Resonstruction of Wigner Quasiprobability Distribution Function of High Order TEM01 Squeezed States[J]. Chinese Journal of Lasers, 2014, 41(3): 318001
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Received: Aug. 28, 2013
Accepted: --
Published Online: Feb. 26, 2014
The Author Email: Rongguo Yang (yrg@sxu.edu.cn)