Underwater acoustic modem technology has attained a level of maturity to support underwater acoustic sensor networks (UASNs) which are generally formed by acoustically connected sensor nodes and a surface station pr...
This work was supported by the China Scholarship Council, the Natural Science Foundation of Shandong Province of China (No. Y2003G01, Y2002G06)the Research Found for the Doctoral Program of High Ed-ucation of China (No. 20020422048).
A new type of optical amplifier based on co-doping erbium in thulium doped fiber is proposed to realize S+C band gain by dual-wavelength (800+1410 nm) pumping scheme which is obtainable from laser diode. A novel m...