All-optical switching application of germano-silicate optical fiber incorporated with Ag nanocrystals

银纳米晶体掺杂的高非线性石英光纤的全光转换应用

Ag-nanocrystal-incorporated germano-silicate optical fiber with high resonant nonlinearity was fabricated by using modified chemical vapor deposition and solution doping techniques. An all-optical signal switching application based on cross-phase modulation was demonstrated in the cascaded long-period fiber gratings. Pumped with 499 nm argon laser, all-optical signal gating of the pi-phase shift was achieved with low pump intensities of less than 7.64 GW/cm(2). (C) 2009 Optical Society of America

We would like to express our gratitude to the “Hundreds of Talents Programs” of Chinese Academy of Sciences, P. R. China and also to Jean Toulouse in Lehigh University, USA by a grant from the National Science Foundation, DMR-0701526 “Glass Science, Processing and Optical Properties of Tellurite Fibers” in support of Aoxiang Lin’s research work. Fiber fabrication and characterization was financially supported by BK-21 Information Technology Project, Ministry of Education and Human Resources Development, Republic of Korea; by the National Core Research Center Program from MOST/KOSEF (R15-2006-022-02001-0); by the GIST Top Brand Project (Photonics 2020), Ministry of Science and Technology, Republic of Korea.