摘要
A full-open-cavity wavelength-tunable random fiber laser(WT-RFL) with compact structure and hundreds of picometers tuning range is proposed and demonstrated. A π fiber Bragg grating(FBG) is used in the WT-RFL as a filter to select lasing wavelengths. The two random Bragg grating arrays(RBGAs) and a section of high gain erbium-doped fiber result in a low lasing threshold and high stability. A numerical model to analyze the tunable characteristics is developed. The results show that the laser threshold is 22 m W, and the maximum peak-power fluctuation is 0.55 d B. To the best of our knowledge, it is the first time that a compact and full-open-cavity WT-RFL with two RBGAs and a π-FBG is proposed.
作者
Bing Lü
Wentao Zhang
Wenzhu Huang
Fang Li
吕兵;张文涛;黄稳柱;李芳(College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Optoelectronic System Laboratory,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China)
基金
supported by the National Natural Science Foundation of China (NSFC) (Nos. 61875185 and U1939207)
the Scientific Instrument Developing Project of the Chinese Academy of Sciences
the Strategic Priority Research Program A of the CAS (No. XDA22010201)
the Shenzhen Science and Technology Research Funding (No. JCYJ20190814110601663)
