Collection Of theses on high power laser and plasma physics, 2013, 11 (1): 1488, Published Online: Jun. 2, 2017  

Volume Bragg Grating-Based Tunable Er,Yb Fiber Lasers Covering the Whole C- and L-Band

Author Affiliations
1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
3 Key laboratory of Micro and Nano Photonic Structures (the Ministry of Education), Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
Abstract
High power and widely wavelength tunable operation of cladding-pumped Er,Yb fiber lasers are demonstrated with operating wavelength covering the whole C- and L-band and spectral linewidth FWHM of less than ~0.3 nm over the whole tuning range. Wavelength tuning is realized by the use of an external cavity containing a volume Bragg grating with peak reflectivity >99% at 1650 nm. A tuning range of 45.5 nm from 1533.5 to 1579 nm is obtained for a 7 m Er,Yb fiber. Output power up to 23.8 W is generated at 1565.7 nm for 142.4 W of launched pump power. Using a longer gain fiber of 17 m, the operating wavelength shifted toward the long wavelength side, covering a tuning range of over 67 nm from 1556.7 to 1624.4 nm. A maximum output power of 24.9 W at 1567.5 nm is achieved for the launched pump power of 126.5 W.

Jun Liu, Deyuan Shen, Haitao Huang, Xiaoqi Zhang, Xuan Liu, Dianyuan Fan. Volume Bragg Grating-Based Tunable Er,Yb Fiber Lasers Covering the Whole C- and L-Band[J]. Collection Of theses on high power laser and plasma physics, 2013, 11(1): 1488.

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