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rf linewidth reduction in a quantum dot passively mode-locked laser subject to external optical feedback
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10.1063/1.3299714
/content/aip/journal/apl/96/5/10.1063/1.3299714
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/5/10.1063/1.3299714
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic drawing of the experimental setup.

Image of FIG. 2.
FIG. 2.

Comparison of rf spectra with and without feedback.

Image of FIG. 3.
FIG. 3.

rf linewidth as a function of external feedback ratio at a bias of 280 mA gain current and −1 V on the absorber. Inset: rf linewidth of 350 Hz under a feedback ratio of −36 dB.

Image of FIG. 4.
FIG. 4.

A log-log plot of the integrated rms timing jitter as a function of the rf linewidth under a bias condition of −0.5 V reverse voltage and various gain currents in the free-running case. The slope of the solid line follows a square-root dependence. Inset: SSB-PN spectral density of the fourth harmonic under 300 mA gain current and −0.5 V reverse voltage.

Image of FIG. 5.
FIG. 5.

Center frequency shift and rf linewidth variation under feedback ratio of −30 dB as a function of optical delay line change, showing a periodicity of roughly 1.5 mm corresponding to the laser round trip time of 200 ps. Bias condition of MLL: 280 mA gain current and −1 V reverse voltage.

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/content/aip/journal/apl/96/5/10.1063/1.3299714
2010-02-04
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: rf linewidth reduction in a quantum dot passively mode-locked laser subject to external optical feedback
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/5/10.1063/1.3299714
10.1063/1.3299714
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