Graphene oxide-COOH as a new saturable absorber for both Q-switching and mode-locking fiber lasers

Fengyan Zhao; Yishan Wang; Yonggang Wang; Hushan Wang; Yajun Cai

doi:doi:10.3788/COL201715.101402

Chinese Optics Letters, 2017, 15 (10): 101402, Published Online: Jul. 19, 2018

Graphene oxide-COOH as a new saturable absorber for both Q-switching and mode-locking fiber lasers Download： 978次

Fengyan Zhao ^1,2Yishan Wang ^1,*Yonggang Wang ³Hushan Wang ^1,2Yajun Cai ^1,2

Author Affiliations

¹ State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China

² University of Chinese Academy of Sciences, Beijing 100049, China

³ School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710119, China

Figures & Tables

Fig. 1. Characterization of graphene oxide-COOH nanosheets. (a) SEM image, the inset shows graphene oxide-COOH solution; (b) Raman spectra.

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Fig. 2. (a) Graphene oxide-COOH-PVA film attached on the end of fiber connector; (b) nonlinear transmission curve of graphene oxide-COOH-PVA film.

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Fig. 3. Experimental setup of the fiber laser with graphene oxide-COOH as a mode locker.

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Fig. 4. (Color online) (a) Pulse trains at the pump power of 40 mW: inset, single pulse profile of the Q-switching laser; (b) the evolution of pulse repetition rate and duration as pump power increases; (c) the evolution of output power and pulse energy with the pump power; (d) the output spectrum of Q-switching.

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Fig. 5. (a) Output spectrum of mode-locking pulse; (b) output pulse train; (c) output autocorrelation trace with a pulse duration of 1.5 ps; (d) radio-frequency spectrum.

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Fengyan Zhao, Yishan Wang, Yonggang Wang, Hushan Wang, Yajun Cai. Graphene oxide-COOH as a new saturable absorber for both Q-switching and mode-locking fiber lasers[J]. Chinese Optics Letters, 2017, 15(10): 101402.

Graphene oxide-COOH as a new saturable absorber for both Q-switching and mode-locking fiber lasers Download： 978次

Fig. 1. Characterization of graphene oxide-COOH nanosheets. (a) SEM image, the inset shows graphene oxide-COOH solution; (b) Raman spectra.

Fig. 2. (a) Graphene oxide-COOH-PVA film attached on the end of fiber connector; (b) nonlinear transmission curve of graphene oxide-COOH-PVA film.

Fig. 3. Experimental setup of the fiber laser with graphene oxide-COOH as a mode locker.

Fig. 5. (a) Output spectrum of mode-locking pulse; (b) output pulse train; (c) output autocorrelation trace with a pulse duration of 1.5 ps; (d) radio-frequency spectrum.

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Graphene oxide-COOH as a new saturable absorber for both Q-switching and mode-locking fiber lasers Download： 978次

Fig. 1. Characterization of graphene oxide-COOH nanosheets. (a) SEM image, the inset shows graphene oxide-COOH solution; (b) Raman spectra.

Fig. 2. (a) Graphene oxide-COOH-PVA film attached on the end of fiber connector; (b) nonlinear transmission curve of graphene oxide-COOH-PVA film.

Fig. 3. Experimental setup of the fiber laser with graphene oxide-COOH as a mode locker.

Fig. 5. (a) Output spectrum of mode-locking pulse; (b) output pulse train; (c) output autocorrelation trace with a pulse duration of 1.5 ps; (d) radio-frequency spectrum.

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