4 $\times$ 10 Gb/s WDM Transmission Over a 5-km-Long Photonic Crystal Fiber in the 800-nm Region

By combining a photonic crystal fiber (PCF) and Si- and GaAs-based optical devices, we can construct high-speed communication systems in the 800-nm region such as 10- to 40-Gb/s Ethernet. In this letter, we report the first wavelength-division-multiplexing (WDM) transmission experiment in the 800-nm region accomplished using a single-mode PCF. We successfully demonstrated a penalty-free 4 times 10 Gb/s WDM transmission over 5 km at 850 nm by combining a single-mode PCF, AlGaAs VCSELs, and an arrayed waveguide grating

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