| タイトル | Femtosecond Photon-Counting Receiver |
| 本文（外部サイト） | http://hdl.handle.net/2060/20160005788 |
| 著者（英） | Yang, Guangning; Krainak, Michael A.; Numata, Kenji; Lu, Wei; Rambo, Timothy M. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2016-04-26 |
| 言語 | eng |
| 内容記述 | An optical correlation receiver is described that provides ultra-precise distance and/or time/pulse-width measurements even for weak (single photons) and short (femtosecond) optical signals. A new type of optical correlation receiver uses a fourth-order (intensity) interferometer to provide micron distance measurements even for weak (single photons) and short (femtosecond) optical signals. The optical correlator uses a low-noise-integrating detector that can resolve photon number. The correlation (range as a function of path delay) is calculated from the variance of the photon number of the difference of the optical signals on the two detectors. Our preliminary proof-of principle data (using a short-pulse diode laser transmitter) demonstrates tens of microns precision. |
| NASA分類 | Communications and Radar |
| レポートNO | GSFC-E-DAA-TN31099 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
