MULTI-RESONANT FIBER LASER SYSTEM

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PURPOSE : A multi-resonance fiber laser system is provided to perform a laser of a wavelength range over a wavelength range of a rare earth element by using Raman effect. CONSTITUTION : A pump light source(110) oscillates a pump light. A first gain medium optical fiber(128) includes a rare earth element. A first reflective member(121) and a second reflective member(122) are faced about the first gain medium optical fiber. A first resonant part(120c) converts the pump light through the first gain medium optical fiber. The first resonant part oscillates a first laser having a first wavelength. A second gain medium optical fiber(138) generates an induced Raman effect. A third reflective member(133) and a fourth reflective member(134) are faced about the second gain medium optical fiber. A second resonant part(130c) converts the first laser by using the second gain medium optical fiber. The second resonant part oscillates a second laser having a second wavelength.