Three Multiple-Pulse Operation States of an All-Normal-Dispersion Dissipative Soliton Fiber Laser

<table>Measured mode-locked pulse trains at different repetition rates. (a) Fundamental mode-locking at 57.5 MHz. (b) Second-harmonic mode-locking at 115 MHz. (c) Third-harmonic mode-locking at 172.5 MHz.</table>

International Journal of Optics

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Figure 2

Figure 2: Three Multiple-Pulse Operation States of an All-Normal-Dispersion Dissipative Soliton Fiber Laser 