'A'
Title: Study of Nd3+-doped polarization-maintaining fiber laser
Author(s): Ren GJ (Ren Guang-Jun), Zhang Q (Zhang Qiang), Wang P (Wang Peng), Yao JQ (Yao Jian-Quan)
Source: ACTA PHYSICA SINICA 56 (7): 3917-3923 JUL 2007  
Authors' addresses:
Tianjin Univ, Inst Laser & Optoelect, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China
Tianjin Univ, Minist Educ, Key Lab Optoelect Informat Sci & Technol, Tianjin 300072, Peoples R China

'B'
Title: A cladding-pumped fiber laser with pump-reflecting inner-cladding Bragg grating
Author(s): Baek S, Soh DBS, Jeong Y, Sahu JK, Nilsson J, Lee B
Source: IEEE PHOTONICS TECHNOLOGY LETTERS 16 (2): 407-409 FEB 2004