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We investigate the impact on system reach in FMF transmission due to MDL from FM-EDFAs. While mode-scrambling can reduce the growth rate of MDL with distance, there may be stringent MDL requirements for the mode-scramblers.
In this paper, a 5.8-GHz active mixer with the low-power and the high conversion gain is designed and fabricated in the TSMC 0.18-μm CMOS 1P6M process. The gate-driven circuit topology and the weak-inversion biasing techniques are employed to implement this mixer, and then achieve the power consumption of 1.13 mW (core circuit), the conversion gain of 8.62 dB, the LO driving power of −3 dBm, and the...
We demonstrate wavelength- and mode-division multiplexed transmission over a fiber re-circulating loop comprising 50-km of low-DMGD few-mode fiber, and an optimized few-mode EDFA with reduced wavelength-dependent gain and mode-dependent gain. We characterize the channel matrix in terms of its singular value spread, and investigate its long-term stability.
Using a transmission fiber with a zero differential modal dispersion wavelength and a gain-equalized few-mode EDFA, we demonstrate mode-multiplexed transmission over a fiber recirculating loop with all few-mode components.
We demonstrate wavelength- and mode-division multiplexed transmission over a fiber re-circulating loop comprising 50-km of low-DMGD few-mode fiber, and an optimized few-mode EDFA with a flat gain spectrum and low mode-dependent gain.
We designed and built a novel all-optical re-timing, re-amplifying, and re-shaping (3R) regeneration system based on terahertz optical asymmetric demultiplexers (TOADs) developed in our laboratory. The system is capable of parallel processing multiple wavelengths, a feature which will significantly improve the scalability of current wavelength division multiplexing (WDM) networks. Performance against...
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