'A' cited 'B'.

'A'
Title: Strain-optic coefficients of individual cladding modes of singlemode fibre: theory and experiment
Author(s): Chen C, Albert J
Source: ELECTRONICS LETTERS 42 (18): 1027-1028 AUG 31 2006
Authors' address:
Carleton Univ, Dept Elect, Ottawa, ON K1S 5B6 Canada

'B'
Title: Characteristics of short-period blazed fiber Bragg gratings for use as macro-bending sensors
Author(s): Baek S, Jeong Y, Lee B
Source: APPLIED OPTICS 41 (4): 631-636 FEB 1 2002