'A' cited 'B'.



'A'

Title: Polarization-independent all-fibre comb filter with dynamically halved channel spacing

Author(s): Ma XR, Kai GY, Wu ZF, Guo HL, Zhang H, Liu YG, Yuan SZ, Dong XY

Source: CHINESE PHYSICS LETTERS 22 (5): 1159-1161 MAY 2005

Authors' addresses:

Tianjin Univ Technol, Dept Photoelect, Tianjin, 300191 Peoples R China

Nankai Univ, Inst Modern Opt, Tianjin, 300071 Peoples R China



'B'

Title: Polarization-independent tunable fiber comb filter

Author(s): Lee YW, Han KJ, Jung J, Lee B

Source: IEEE PHOTONICS TECHNOLOGY LETTERS 16 (9): 2066-2068 SEP 2004