Fundamental sensitivity limit imposed by dark 1/f noise in the low optical signal detection regime.
Fundamental sensitivity limit imposed by dark 1/f noise in the low optical signal detection regime.
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DOI：
10.1364/oe.16.006822
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发表时间：
2008-05
期刊：
影响因子：
3.8
通讯作者：
Emily J. McDowell;Jian Ren;Changhuei Yang
中科院分区：
文献类型：
--
作者：
Emily J. McDowell;Jian Ren;Changhuei Yang
暗1/f噪声对直接微弱光信号检测中基波信号灵敏度的影响是一个未充分研究的问题。在这篇理论手稿中，我们研究了一个理想化的检测器的限制与白色噪声和1/f噪声的组合，在检测器暗噪声限制模式。相反，白色噪声限制检测方案，其中没有基本的最小信号灵敏度限制，我们发现，1/f噪声特性，包括噪声指数因子和相对幅度的白色和1/f噪声，设置一个基本的限制，这样的检测器可以检测到的最小信号。
The impact of dark 1/f noise on fundamental signal sensitivity in direct low optical signal detection is an understudied issue. In this theoretical manuscript, we study the limitations of an idealized detector with a combination of white noise and 1/f noise, operating in detector dark noise limited mode. In contrast to white noise limited detection schemes, for which there is no fundamental minimum signal sensitivity limit, we find that the 1/f noise characteristics, including the noise exponent factor and the relative amplitudes of white and 1/f noise, set a fundamental limit on the minimum signal that such a detector can detect.