Design of a photo-written cavity neodymium doped fibre laser, tunable around a particular absorption molecular line G. MARTINELLI, M. DOUAY, P. BERNAGE, P. NIAY, J.F. HENNINOT, P. CARETTE and J.F. BAYON J. Phys. IV France, 04 C4 (1994) C4-719 DOI: 10.1051/jp4:19944197