DETECTION OF WEAK SIGNALS VIA THE DECAY OF AN UNSTABLE STATE - INITIATION OF AN INJECTION-SEEDED LASER

被引：25

作者：

LITTLER, I ^{[1
]}

BALLE, S ^{[1
]}

BERGMANN, K ^{[1
]}

VEMURI, G ^{[1
]}

ROY, R ^{[1
]}

机构：

[1] GEORGIA INST TECHNOL, SCH PHYS, ATLANTA, GA 30332 USA

来源：

PHYSICAL REVIEW A | 1990年 / 41卷 / 07期

关键词：

D O I：

10.1103/PhysRevA.41.4131

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have demonstrated the detection of weak optical signals via the decay of an unstable state. A Q-switched laser is an example of an unstable state, the decay of which has to be triggered either by quantum fluctuations or by an injected external signal. Measurement of the initiation time of the laser intensity allows us to determine the strength of the external signal with a dynamic range of 7 orders of magnitude. It is possible to detect signal levels that correspond to less than one photon in a selected cavity mode. © 1990 The American Physical Society.

引用

页码：4131 / 4134

页数：4

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