Name
Title | ||
|---|---|---|
Optical communication with two-photon coherent states--Part II: Photoemissive detection and structured receiver performance |
Abstract | ||
|---|---|---|
In Part I of this three-part study, it was shown that novel quantum states, called two-photon coherent states (TCS), have significant potential for improving free-space optical communications. Because TCS radiation does not possess a classical analog, i.e., its diagonalP-representation is highly singular, the semiclassical conditional Poisson process model for direct detection is not applicable to TCS reception. In this paper, photoemissive detection of arbitrary quantized radiation fields is studied with incorporation of the nontrivial effects of detector quantum efficiency. General theorems are derived permitting the application of classical point process results to the detection and estimation of signals in arbitrary quantum states. These general theorems are applied to determining the performance of TCS optical communication systems that employ direct, heterodyne, or homodyne detection in binary decision as well as in linear modulation problems. It is shown that the use of TCS radiation with direct detection or heterodyne detection results in minimal performance increments over comparable coherent-state systems. Homodyne detection, however, can achieve the full TCS signal-to-noise ratio improvement predicted in Part I of this study. The increase in homodyne signal-to-noise ratio obtained by use of TCS radiation yields significant performance gains in both linear modulation and antipodal signal detection. |
Year | DOI | Venue |
|---|---|---|
1979 | 10.1109/TIT.1979.1056033 | Information Theory, IEEE Transactions |
Keywords | Field | DocType |
structured receiver performance,two-photon coherent state,part ii,tcs reception,direct detection,general theorem,photoemissive detection,heterodyne detection result,homodyne detection,antipodal signal detection,tcs radiation,tcs radiation yield,tcs optical communication system,free space optical communication,markov process,helium,quantum mechanics,communication theory,signal to noise ratio,coherent light,quantum efficiency,radiation detectors,signal detection,coherent states,signal processing,single mode,first order,markov processes,optical communication,poisson process,statistical analysis,point process,optical communication system | Discrete mathematics,Topology,Heterodyne detection,Telecommunications,Detection theory,Computer science,Quantum state,Coherence (physics),Quantization (physics),Heterodyne,Coherent states,Homodyne detection | Journal |
Volume | Issue | ISSN |
25 | 2 | 0018-9448 |
Citations | PageRank | References |
7 | 1.11 | 5 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jeffrey H. Shapiro | 1 | 153 | 22.84 |
| H. Yuen | 2 | 60 | 16.90 |
| Mata, A. | 3 | 7 | 1.11 |