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An error was made in Fig. 4 in our article [Appl. Opt. 52, 8465 (2013) [CrossRef] ]. We have corrected the error and present a revised Fig. 4 based on the original experimental results.
© 2014 Optical Society of America
In our article [1], we discovered that an error was made in Fig. 4, which was also the thumbnail of that article. The error was that the two arrows embedded in the original Fig. 4 were directed to the wrong points. Here, we have corrected it and present a revised Fig. 4 as follows.
Fig. 4. (a) Oscilloscope trace of a dark pulse train. (b) Typical output spectrum with the dark pulse operation regime.
Reference
1. J. Zhao, P. Yan, and S.-C. Ruan, “Observations of three types of pulses in an erbium-doped fiber laser by incorporating a graphene saturable absorber,” Appl. Opt. 52, 8465–8470 (2013). [CrossRef]
