STABLE TRIPLE-WAVELENGTH FIBER RING LASER WITH ULTRANARROW WAVELENGTH SPACING USING A TRIPLE-TRANSMISSION-BAND FBG FILTER

摘要

Multiple phase shift structures are introduced in one uniform fiber Bragg grating (FBG) and multi-transmission-band filters with ultranarrow wavelength spacing are demonstrated. A stable 50 pm-spaced, triple-wavelength fiber ring laser is achieved experimentally by incorporating a triple-transmission-band FBG filter in a fiber ring cavity.