Walker, B; Jones, T; Wells, D S (2001) Group index variations in single-mode optical fibres. NPL Report. COAM 1

Walker, B; Buncle, P T; Wells, D S (2000) Dispersion mapping of optical fibres. NPL Report. COEM 53

Walker, B (2000) Calibration and use of Optical Time Domain Reflectometers (OTDR). Measurement Good Practice Guide. 31

Billington, R; Walker, B (2000) Experimental investigations into four-wave mixing in optical fibre. NPL Report. COEM 43

Billington, R; Bongrand, I*; Hallam, A*; Humphreys, D A; Parker, A; Walker, B; Wells, D S (2000) Effective area of single-mode optical fibres - a comparison of four measurement techniques. In: European Conference on Optical Communication (ECOC) 2000, September 2000, Munich, Germany.

Humphreys, D A; Billington, R S; Parker, A; Walker, B; Wells, D S; Hallam, A G*; Bongrand, I* (2000) A comparison of three techniques for effective area measurement of single-mode optical fibres. NIST Special Publication, 953. pp. 61-64.

Walker, B; Buncle, P T; Jones, T C E (1997) Return loss calibration of OTDR's. In: OFMC '97. 4th Optical Fibre Measurement Conf. Digest., 29 September-1 October 1997, National Physical Laboratory, Teddington.

Ives, D J; Andersson, R*; Artiglia, M*; Bergamin, F*; Caviglia, F*; Corredera, P*; De Pauw, C*; Ducos, L*; Gauthier, F*; De Lignie, M*; Oksanen, L*; Perny, B*; Pollitt, S; Ravet, F*; Ricaldone, P*; Santaguistina, M*; Schiano, M*; Thorsen, P*; Vobian, J*; Valkeapaa, T*; Walker, B (1995) Evaluation of OTDR calibration technique and use for optical fibre uniformity measurements. In: BEMC 95 7th British Electromagnetic Measurements Conference Digest, 6-9 November 1995, Malvern.