Stimulated Brillouin scattering in single-mode tellurite glass fiber

Stimulated Brillouin scattering properties in a single-mode tellurite glass fiber were studied using a cw laser with an operating wavelength of 1.54 mum. The Brillouin frequency shift v(B) and the gain linewidth Deltav(B) were 7.882 GHz and 23.6 MHz, respectively. A Brillouin gain coefficient g(B) in the range of 1.47 x 10(-10)-2.16 x 10(-10) m/W was measured. The higher gain coefficient of the tellurite fiber, together with its relatively low loss compared with other non-silica fibers, makes it a suitable candidate for realizing efficient, all-optical, slow-light devices.