Three-level all-fiber laser at 915 nm based on polarization-maintaining Nd3+-doped silica fiber

Yafei Wang; Xingyu Li; Jiamin Wu; Xiulin Peng; Jiangkun Cao; Changsheng Yang; Shanhui Xu; Zhongmin Yang; Mingying Peng

doi:10.3788/COL202018.011401

Journals >Chinese Optics Letters >Volume 18 >Issue 1 >Page 011401 > Article

Chinese Optics Letters
Vol. 18, Issue 1, 011401 (2020)

Three-level all-fiber laser at 915 nm based on polarization-maintaining Nd³⁺-doped silica fiber

Yafei Wang¹, Xingyu Li¹, Jiamin Wu¹, Xiulin Peng¹, Jiangkun Cao¹, Changsheng Yang¹, Shanhui Xu^1、2, Zhongmin Yang¹, and Mingying Peng^1、2、*

Author Affiliations

¹State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, School of Materials Science and Technology, South China University of Technology, Guangzhou 510640, China

²Guangdong Engineering Technology Research and Development Center of High-performance Fiber Laser Techniques and Equipments, Zhuhai 519031, China

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DOI: 10.3788/COL202018.011401 Cite this Article Set citation alerts

Yafei Wang, Xingyu Li, Jiamin Wu, Xiulin Peng, Jiangkun Cao, Changsheng Yang, Shanhui Xu, Zhongmin Yang, Mingying Peng. Three-level all-fiber laser at 915 nm based on polarization-maintaining Nd³⁺-doped silica fiber[J]. Chinese Optics Letters, 2020, 18(1): 011401 Copy Citation Text

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(a) Setup of the gain coefficient measurement at 915 nm of the Nd3+-doped silica fiber. (b) Net gains versus pump powers of a 4.5 cm Nd3+-doped silica fiber for different signal powers (Ps).

Fig. 1. (a) Setup of the gain coefficient measurement at 915 nm of the

{Nd}^{3 +}

-doped silica fiber. (b) Net gains versus pump powers of a 4.5 cm

{Nd}^{3 +}

-doped silica fiber for different signal powers (P_s).

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(a) The experimental setup of 915 nm Nd3+-doped silica fiber laser. (b) 915 nm laser spectrum of Nd3+-doped silica fiber. The inset is the energy level of Nd3+. (c) The laser output power with different lengths of gain fiber versus pump power (CE: optical-to-optical conversion efficiency).

Fig. 2. (a) The experimental setup of 915 nm

{Nd}^{3 +}

-doped silica fiber laser. (b) 915 nm laser spectrum of

{Nd}^{3 +}

-doped silica fiber. The inset is the energy level of

{Nd}^{3 +}

. (c) The laser output power with different lengths of gain fiber versus pump power (CE: optical-to-optical conversion efficiency).

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Fig. 3. Dependence of optical-to-optical conversion efficiency on the reflectivity of LR-FBG (70%, 83%, 90%) with a 5.1 cm fiber length.

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Fig. 4. (a) Laser spectrum with a 0.02 nm OSA resolution. The inset is the output laser power versus the launched pump power. (b) The longitudinal-mode properties of DBR 915 nm fiber laser measured by FPI. (c) A brief schematic diagram of reducing the number of longitudinal modes in the DBR cavity.

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