Multi-wavelength, continuous wave fibre Raman ring laser operating at 1.55 [micro sign]m

A four wavelength continuous wave, fibre Raman ring laser has been demonstrated at room temperature using fibre Bragg gratings as the wavelength-selective elements with applications as a multi-wavelength source for optical fibre telecommunications. Channel spacings were /spl sim/5 nm between 1551.6 and 1565.1 nm with 14.9 dBm total output power.