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负反馈提高高阻恒流源驱动的LED的输出光场噪声压缩量

刘甲壬 赵波 王育竹

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负反馈提高高阻恒流源驱动的LED的输出光场噪声压缩量

刘甲壬, 赵波, 王育竹

ENHANCING THE NUMBER-NOISE SQUEEZING OF OUTPUT LIGHT OF A LED DRIVEN BY HIGH-IMPEDANCE CONSTANT-CURRENT SOURCE USING NEGATIVE FEEDBACK

LIU JIA-REN, ZHAO BO, WANG YU-ZHU
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  • 研究高阻恒流源驱动的LED所发射光场的粒子数噪声压缩与LED电、光量子效率,漏电流效应,光子流涨落负反馈及噪声频率的关系。指出:在高阻恒流LED中引入适量光子流涨落负反馈能产生粒子数压缩态光场并极大地提高粒子数噪声压缩,其理想压缩仅受限于高阻恒流源残余噪声、LED漏电流效应和量子效率。
    In this paper, we study the relations between the number-noise squeezing of the output light of a LED driven by high-impedance constant-current source and LED's electronic/optical quantum efficiencies, ieakage current effect, negative feedback of photon-flux fluctuation and noise frequency. We poiat out that with appropriate negative-feedback of the photon-flux fluctuation, LED driven by high-impedance constant-current can generate number-squeezed state light, the number-noise squeezing is significantly enhanced and its ideal value is limited only by residual noise of the high impedance constant-current source, LED's leakage current effect and quantum efficiency.
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  • 文章访问数:  6052
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  • 被引次数: 0
出版历程
  • 收稿日期:  1993-01-19
  • 刊出日期:  1994-05-05

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