'A'
Title: Stochastic optimization of conventional and holey double-clad fibres
Author(s): Dritsas I (Dritsas, I.), Sun T (Sun, T.), Grattan KTV (Grattan, K. T. V.)
Source: JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS 9 (4): 405-421 APR 2007  
Authors' address:
City Univ London, Sch Engn & Math Sci, London EC1V 0HB, England

'B'
Title: Experimental demonstration of enhancing pump absorption rate in cladding-pumped ytterbium-doped fiber lasers using pump-coupling long-period fiber gratings
Author(s): Baek S, Roh S, Jeong Y, Lee B
Source: IEEE PHOTONICS TECHNOLOGY LETTERS 18 (5-8): 700-702 MAR-APR 2006