OBSERVATION OF AMPLITUDE SQUEEZING IN A CONSTANT-CURRENT DRIVEN SEMICONDUCTOR-LASER
OBSERVATION OF AMPLITUDE SQUEEZING IN A CONSTANT-CURRENT DRIVEN SEMICONDUCTOR-LASER
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DOI：
10.1103/physrevlett.58.1000
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发表时间：
1987-03-09
影响因子：
8.6
通讯作者：
ITAYA, Y
中科院分区：
文献类型：
--
作者：
MACHIDA, S;YAMAMOTO, Y;ITAYA, Y
在恒流驱动的半导体激光器中产生了光子数涨落小于标准量子极限的电磁场。该产生是基于高阻抗抑制高饱和激光振荡器中泵浦振幅波动的新原理。在350和450 MHz之间的整个频率范围内，观察到的噪声水平为7.3%（检测量子效率校正后为31%），低于标准量子极限。
Electromagnetic fields with photon-number fluctuation reduced below the standard quantum limit have been generated in a constant-current–driven semiconductor laser. The generation is based on a new principle of high impedance suppression for pump-amplitude fluctuation in a highly saturated laser oscillator. The observed noise level is 7.3%(31% after correction for detection quantum efficiency) in power below the standard quantum limit in the entire frequency range between 350 and 450 MHz.