Abstract
We demonstrate a large improvement in the efficiency of the method proposed by Krug et al. [Opt. Lett. 20, 1767 (1995)] to measure the amplitude of the refractive-index modulation along a fiber Bragg grating. The basic idea consists of using what to our knowledge is a new modulation scheme for the probe beam that not only allows the user to get a better discrimination of the probe light incoherently scattered by the fiber from that scattered by the grating but also facilitates alignment of the setup.
© 2001 Optical Society of America
Full Article | PDF ArticleMore Like This
Fouad El-Diasty, Alan Heaney, and Turan Erdogan
Appl. Opt. 40(6) 890-896 (2001)
Arif Hidayat, Qinglin Wang, Pierre Niay, Marc Douay, Bertrand Poumellec, Farid Kherbouche, and I. Riant
Appl. Opt. 40(16) 2632-2642 (2001)
S. Pitois, M. Haelterman, and G. Millot
Opt. Lett. 26(11) 780-782 (2001)