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The 2nd-order fractional Talbot effect is employed to multiply the 10-GHz optical pulse-train injection for 4th-order ration-harmonic-mode-locking of a SOA fiber laser at 40-GHz. With improved modulation-depth by enlarging pulse-extinction-ratio from 0.55 to 2.3, the SOAFL generates 8ps pulsewidth and 170 fs timing jitter when injection-pulse with 2-GHz peak-to-peak chirp.
Under an optical nonreturn-to-zero (NRZ) data injection at 10 Gbit/s, the 10-GHz mode-locking and pulsed return-to-zero (RZ) clock extraction from a semiconductor optical amplifier (SOA) based fiber ring is investigated in this paper. The diagnoses on gain and intracavity-power-controlled anomalous blueshifted spectrum and subpicosecond timing jitter are demonstrated. By increasing the injecting power...
Wavelength converted 10 GHz clock pulse recovery induced by injecting optical OC-192 NRZ data into SOA fiber-ring is demonstrated to obtain a 540-fs RZ clock pulse with duty-cycle of 0.5% after chirp compensation and compression.
Operation state switchable erbium-doped fiber laser is demonstrated using semiconductor saturable absorber mirror and polarization control. Pulse-splitting in anomalous dispersion fiber is studied with nonlinear Schrodinger equation. Multi-level modulation of Q-switched mode-locking is observed.
Passively mode-locked lasers using saturable absorber incorporating dispersed single-wall carbon nanotubes (SWCNTs) is demonstrated. The peak absorption wavelength of saturable absorber can be engineered within the gain band-width of erbium-doped fiber (EDF) centered at 1550 nm. The mean diameter of SWCNTs and the linear optical absorption of SWCNTs-polyvinyl alcohol (PVA) film are verified by Raman...
A novel optical TDM carrier with 200 GHz DWDM channel spacing from optically injection-mode-locked weak-resonant-cavity Fabry-Perot laser diode with 10%-end-facet reflectivity is demonstrated with chirp and pulsewidth dispersion compensated to 5.4 GHz and 8.5 ps, respectively.
A 30 nm wavelength-tunable backward dark-optical-comb injection-mode-locked semiconductor optical amplifier fiber laser with pedestal-free and transform-limited pulsewidth of 180 fs and 400 fs at 1 GHz and 10 GHz, respectively, is reported after high-order soliton compression with maximum pulse compression ratio of up to 80
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