| Study on frequency coherence properties of light beams | |
| Zhu, Ning Hua; Li, Wei; Wang, Li Xian; Chen, Shuo Fu; Ke, Jian Hong; Zhang, Ya Li; Wen, Ji Min; Liu, Yu; Wang, Xin; Yan, Hai Qing | |
| 刊名 | Ieee journal of quantum electronics
 |
| 2009-05-01 | |
| 卷号 | 45期号:5-6页码:514-522 |
| 关键词 | Coherence Fabry-perot (fp) laser Heterodyne technique Intensity modulation Linewidth |
| ISSN号 | 0018-9197 |
| DOI | 10.1109/jqe.2009.2013102 |
| 通讯作者 | Zhu, ning hua(nhzhu@semi.ac.cn) |
| 英文摘要 | This paper presents a new concept of frequency coherence in the frequency-time domain to describe the field correlations between two lightwaves with different frequencies. the coherence properties of the modulated beams from lightwave sources with different spectral widths and the modes of fabry-wrot (fp) laser are investigated. it is shown that the lightwave and its corresponding sidebands produced by the optical intensity modulation are perfectly coherent. the measured linewidth of the beat signal is narrow and almost identical no matter how wide the spectral width of the beam is. the frequency spacing of the adjacent fp modes is beyond the operation frequency range of the measurement instruments. in our experiment, optical heterodyne technique is used to investigate the frequency coherence of the modes of fp laser by means of the frequency shift induced by the optical intensity modulation. experiments show that the fp modes are partially coherent and the mode spacing is relatively fixed even when the wavelength changes with ambient temperature, bias current and other factors. therefore, it is possible to generate stable and narrow-linewidth signals at frequencies corresponding to several mode intervals of the laser. |
| WOS关键词 | SELF-HETERODYNE INTERFEROMETER ; CONTINUOUS-WAVE OPERATION ; Y-JUNCTION COUPLER ; SIDE-BAND ; LASER ; GENERATION ; SIGNAL |
| WOS研究方向 | Engineering ; Optics ; Physics |
| WOS类目 | Engineering, Electrical & Electronic ; Optics ; Physics, Applied |
| 语种 | 英语 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| WOS记录号 | WOS:000266454300011 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2427709 |
| 专题 | 半导体研究所 |
| 通讯作者 | Zhu, Ning Hua |
| 作者单位 | Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoclect, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Ning Hua,Li, Wei,Wang, Li Xian,et al. Study on frequency coherence properties of light beams[J]. Ieee journal of quantum electronics,2009,45(5-6):514-522. |
| APA | Zhu, Ning Hua.,Li, Wei.,Wang, Li Xian.,Chen, Shuo Fu.,Ke, Jian Hong.,...&Xie, Liang.(2009).Study on frequency coherence properties of light beams.Ieee journal of quantum electronics,45(5-6),514-522. |
| MLA | Zhu, Ning Hua,et al."Study on frequency coherence properties of light beams".Ieee journal of quantum electronics 45.5-6(2009):514-522. |
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