Optical fiber amplifier and laser with flattened gain slope

Details Optical fiber amplifier and laser with flattened gain slope Optical fiber amplifier and laser with flattened gain slope

H - Electricity

01

S

H01S 3/02 (2006.01) H01S 3/067 (2006.01) H04B 10/12 (2006.01) H04B 10/16 (2006.01)

Patent

CA 2101364

An in-fiber Bragg grating is used to flatten the gain slope of a fiber optical amplifier or optical fiber laser. The grating can be formed using photorefractive techniques, and is placed within a guided wave portion of a doped optical fiber. The grating is oriented at a nonperpendicular angle with respect to a longitudinal axis of the fiber, and has an interaction wavelength that is selected to flatten the gain slope of the device by diverting excess spontaneous emission therefrom. The interaction wavelength is preferably selected to correspond to a wavelength at or near that at which the spontaneous emission produced by the fiber peaks.

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