Optical multiplexer and fiber laser

摘要

An object of the present invention is to provide an optical multiplexer and a fiber laser for obtaining high-output light of a single wavelength. The optical multiplexer according to the present invention is provided with input units 11 and 12, a wavelength multiplexing unit 14, a multiplexed light converting unit 15 and an output unit 16. Lights of a plurality of wavelengths λ1 and λ2 are input to the input units 11 and 12, respectively. The wavelength multiplexing unit 14 wavelength-multiplexes the lights of the plurality of wavelengths λ1 and λ2 input from the input units 11 and 12 different for each wavelength to one multiplexed light. By wavelength-multiplexing, it is possible to multiplex without a loss. The multiplexed light converting unit 15 generates Raman light with at least one wavelength out of the wavelengths λ1 and λ2 included in the multiplexed light from the wavelength multiplexing unit 14 and converts the multiplexed light of the wavelengths λ1 and λ2 from the wavelength multiplexing unit 14 to light of a single wavelength λm included in a wavelength band of the Raman light.

主权项

1. An optical multiplexer, comprising:
a wavelength multiplexing unit for wavelength-multiplexing lights of a plurality of wavelengths input from input units different for each wavelength to one multiplexed light; and a multiplexed light converting unit for generating Raman light by at least one wavelength out of the wavelengths included in the multiplexed light from the wavelength multiplexing unit and converting the multiplexed light from the wavelength multiplexing unit to light of a single wavelength included in a wavelength band of the Raman light, wherein the plurality of wavelengths includes a wavelength of high-order Raman light caused by one of the plurality of wavelengths in the multiplexed light converting unit.