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DWDM Transparent FSO System for In/Outdoor Applications at High Bit Rates

Free Space Optics (FSO) is a technology able to provide line of sight wireless high-bandwidth digital communication links between remote sites. Therefore it is a key solution for addressing the last hundred meters of broadband requirements. For enhancing the capacity of optical wireless links, DWDM transmission can be used. In this work, 10 Gb/s and 40 Gb/s bit rates have been used in a DWDM fully transparent system. The link has been demonstrated in both in- and outdoor experiments. System performance has been evaluated in terms of BER and Q-factor.