Ultrafine Frequency Linearly Tunable Single-Frequency Fiber Laser Based on Intracavity Active Tuning

Autor: Lufan Jin, Yonghua Wu, Mingxuan Cao, Zhenggeng Zhong, Linchao Xu, Kun Wang, Jixing Lin, Chengyu Cai, Xian Tong, Ruiping Li, Liyuan Niu, Jianquan Yao
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-6 (2020)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2019.2950434
Popis: An ultrafine frequency linearly tunable single-frequency fiber laser based on the intracavity active tuning is demonstrated. Single-frequency operation can be achieved by an ultrashort cavity and ultranarrow polarization-maintaining fiber Bragg grating. A sub-nanometer-accuracy piezoelectric ceramic actuator with closed-loop mode has been employed to realize the cavity-length active tuning scheme, which can achieve a linear tuning range of >1 GHz with a 3.2-MHz/nm tuning resolution. The periodic tuning repeatability and repeat accuracy show that the scheme can realize linear frequency tuning with great tuning repeatability and high tuning precision.
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