A wavelength spacing tunable dual-wavelength single-longitudinal-mode fiber ring laser is presented by employing separated
fiber Bragg gratings. By using a saturable-absorption-induced grating filter and a hybrid gain medium formed by a semiconductor
optical amplifier and an erbium-doped fiber amplifier, stable single-longitudinal-mode lasing is achieved at room temperature.
Wavelength spacing of the proposed fiber laser can be tuned in a range from 0.1 to 1.3 nm.
PACS numbers 42.55.Wd - 42.60.-v
Original Text © Astro, Ltd., 2009.
The article is published in the original.