压缩态光场平衡零拍探测的位相锁定
Locking the phase of balanced homodyne detection system for squeezed light∗
摘要
Abstract
The balanced homodyne detection technique is an important method to detect the quantum light field. The signal light injected into the phase sensitive optical parameter amplifier (OPA) is phase modulated. The output squeezed light of OPA is detected by the balanced homodyne detection system. When the phase sensitive OPA is operated at parametric amplification and deamplification respectively, we can judge which quadrature component of the quantum light field is measured by observing the modulation signal. We can demodulate the phase modulation signal to achieve the error signal, which is used to lock the relative phase of zero between the local and the quantum light fields (corresponding to the quadrature-amplitude of the unknown light field).关键词
平衡零拍探测/位相锁定Key words
balanced homodyne detection/lock the phase引用本文复制引用
张岩,于旭东,邸克,李卫,张靖†..压缩态光场平衡零拍探测的位相锁定[J].物理学报,2013,(8):1-6,6.基金项目
国家自然科学基金(批准号:61177087,60978058)、教育部新世纪优秀人才计划项目(批准号:NCET-10-0976)、浙江省杰出青年基金(批准号:R1101263)、浙江省自然科学基金(批准号:LQ12F05004)、宁波市新型光电功能材料及器件创新团队项目(批准号:2009B21007)、宁波市自然科学基金(批准号:2012A610116)和宁波大学王宽诚幸福基金资助的课题.*Project supported by the National Natural Science Foundation of China (Grant Nos.61177087,60978058), the Program for New Century Excellent Talents in University of Ministry of Education of China (Grant No. NCET-10-0976), the Zhejiang Provincial Funds for Distinguished Young Scientists, China (Grant No. R1101263), the Natural Science Foundation of Zhejiang Province, China (Grant No. LQ12F05004), the Program for Innovative Research Team of Ningbo City, China (Grant No.2009B21007), the Natural Science Foundation Ningbo, China (Grant No.2012A610116), and the K. C. Wong Happy Foundation of Ningbo Uninversity, China （批准号:61177087,60978058）
