the Hi-Tech Research and Development Program of China (Grant No. 2002AA312190);National Natural Science Foundation of China (Grant No. 60477017);Program for the New Century Excellent Talents in University (Grant No. NCET-06-0076);Beijing Natural Science Foun-dation (Grant No. 4052023);the Beijing Jiaotong University Foundation (Grant No. 2006XM003)
An optimal refractive index profile of pure silica core optical fiber (PSCF) was de- signed, in combination with the characters of the modified chemical vapor deposi- tion (MCVD) process. Techniques of preform fabrica...