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An all-optical, UWB doublet pulse generation scheme based on nonlinear optical loop mirror with parametric amplification is experimentally demonstrated. The scheme is shown to be capable of producing high quality UWB doublet pulses.
A hybrid Raman-OPA amplifier with 190 nm bandwidth, and <4dB gain ripple is described. We also show that inclusion of the forth order dispersion coefficient is critical for the correct optimization of the gain bandwidth of the hybrid amplifier.
We review the technique of spectral beam combining and discuss detailed limitations in the laser systems used for combination of multiple cw and pulsed fiber amplifiers to kW average power and mJ's of pulse energy.
Abstract: We demonstrate a cost-effective and efficient approach for realizing ultrafast time-stretch microscopy in 1µm using the standard telecommunication single-mode fibers (e.g. SMF28 and dispersion compensation fiber (DCF)) as few-mode fibers (FMFs).
Unrepeatered transmission of 12 × 120 Gb/s PM-NRZ-QPSK signals over the legacy spans has been demonstrated. Transmission has been achieved by forward and backward distributed Raman amplification using 100G channel card with real-time ASIC processor.
Tunable intracavity phase modulation is applied to an all normal dispersion fiber oscillator to suppress wave-breaking and increase the pulse energy. Spectral broadening beyond 1200–2000nm is achieved by 15-m-long high nonlinear fiber.
We experimentally investigate the 60 GHz double-sideband radio-over-fiber link. We present the bit error rate performance of the system for HD video transmission in the access architecture and the phase noise measurements for metro-access scenarios.
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