Experimental investigation on Q-switching and Q-switched mode-locking operation in gold nanorods-based erbium-doped fiber laser

Xude Wang; Nian Zhao; Hao Liu; Rui Tang; Yanfang Zhu; Jianping Xue; Zhichao Luo; Aiping Luo; Wencheng Xu

doi:10.3788/COL201513.081401

Journals >Chinese Optics Letters >Volume 13 >Issue 8 >Page 081401 > Article

Chinese Optics Letters
Vol. 13, Issue 8, 081401 (2015)

Experimental investigation on Q-switching and Q-switched mode-locking operation in gold nanorods-based erbium-doped fiber laser

Xude Wang^1、2, Nian Zhao², Hao Liu², Rui Tang², Yanfang Zhu⁴, Jianping Xue⁴, Zhichao Luo², Aiping Luo^2、3、*, and Wencheng Xu^2、**

Author Affiliations

¹School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China

²Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China

³Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510640, China

⁴School of Life Sciences, Huaibei Normal University, Huaibei 235000, China

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DOI: 10.3788/COL201513.081401 Cite this Article Set citation alerts

Xude Wang, Nian Zhao, Hao Liu, Rui Tang, Yanfang Zhu, Jianping Xue, Zhichao Luo, Aiping Luo, Wencheng Xu. Experimental investigation on Q-switching and Q-switched mode-locking operation in gold nanorods-based erbium-doped fiber laser[J]. Chinese Optics Letters, 2015, 13(8): 081401 Copy Citation Text

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Fig. 1. (a) TEM image of the GNRs (Inset: aqueous solution of GNRs). (b) Histogram of the aspect ratio distribution.

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(a) Photograph of the filmy GNR SA (Inset: photograph of the fiber end attached to the GNR SA). (b) Nonlinear saturable absorption curve of the prepared GNR SA.

Fig. 2. (a) Photograph of the filmy GNR SA (Inset: photograph of the fiber end attached to the GNR SA). (b) Nonlinear saturable absorption curve of the prepared GNR SA.

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Fig. 3. Experimental setup of Q-switched EDF ring laser.

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Fig. 4. Q-switched operation at a pump power of 56.4 mW. (a) Q-switched pulse train (Inset: the single zoomed-in pulse). (b) The corresponding optical spectrum.

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Fig. 5. (a) Q-switched pulse trains with different repetition rates. (b) Pulse duration and repetition rate versus pump power.

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Fig. 6. (a) Spectra of the wavelength-tunable, Q-switched operation at a pump power of 202.2 mW. (b) Typical Q-switched pulses centered at 1558.22 nm. (c) Pulse repetition rate and output power versus tunable wavelength. (d) Pulse width and energy versus tunable wavelength.

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Fig. 7. (a) Various QML pulse trains under different pump powers. (b) Magnified view of the single QML pulse. (c) The corresponding optical spectrum. (d) The corresponding radio frequency spectrum.

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