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Passive harmonic mode-locking in Er-doped fiber laser based on graphene saturable absorber with repetition rates scalable to 2.22 GHz
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10.1063/1.4704913
/content/aip/journal/apl/100/16/10.1063/1.4704913
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/16/10.1063/1.4704913

Figures

Image of FIG. 1.
FIG. 1.

Graphene mode-locked fiber laser. EDF—erbium doped fiber, PC—polarization controller, OC—output coupler, GSA—Graphene saturable absorber.

Image of FIG. 2.
FIG. 2.

(a) Power dependent absorption of the graphene SA with calculated SA parameters; (b) AFM scan image with height profiles of the 10 × 10 µm area.

Image of FIG. 3.
FIG. 3.

Fundamental mode-locked laser performance: (a) optical spectrum measured with 0.02 nm resolution, (b) RF spectrum measured at 910 kHz RBW, (c) full RF spectrum with 7 GHz span, and (d) oscilloscope trace.

Image of FIG. 4.
FIG. 4.

Optical spectrum at 21st harmonic (2.22 GHz).

Image of FIG. 5.
FIG. 5.

RF spectrum of the mode-locked laser output measured with 2.7 MHz resolution bandwidth (RBW) and 7 GHz span. Inset: spectrum centered at 2.22 GHz.

Image of FIG. 6.
FIG. 6.

Recorded temporal laser pulse train. Inset: pulse train with 200 ns span.

Image of FIG. 7.
FIG. 7.

Autocorrelation trace of the 900 fs pulse.

Image of FIG. 8.
FIG. 8.

Videos presenting the repetition frequency change while changing of the pumping power. (a) The oscilloscope screen while increasing the pump power, (b) RF spectrum while increasing, and (c) decreasing the pump power (enhanced online). [URL: http://dx.doi.org/10.1063/1.4704913.1] [URL: http://dx.doi.org/10.1063/1.4704913.2] [URL: http://dx.doi.org/10.1063/1.4704913.3]10.1063/1.4704913.110.1063/1.4704913.210.1063/1.4704913.3

Image of FIG. 9.
FIG. 9.

Relation between the harmonic of the fundamental repetition rate and the launched pump power (square dots). Solid line—linear fit.

video/mp4,video/x-flv,video/flv,audio.mp3,audio.mpeg

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/content/aip/journal/apl/100/16/10.1063/1.4704913
2012-04-20
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Passive harmonic mode-locking in Er-doped fiber laser based on graphene saturable absorber with repetition rates scalable to 2.22 GHz
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/16/10.1063/1.4704913
10.1063/1.4704913
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