16-01-2014 дата публикации
Номер: US20140016184A1
A high-power optical fibre laser includes: an oscillator (); a pumping laser () able to emit a high-power pumping optical radiation beam; and a signal-amplifying optical fibre () able to receive the optical source signal and the high-power pumping optical radiation beam so as to generate a high-power laser beam. The pumping laser includes a plurality of pumping multimode laser diodes (-) and a laser cavity, the laser cavity including a double-clad fibre () including: a neodymium-doped monomode waveguide; a fibre Bragg grating () forming one end of the laser cavity; and a fibre reflector () forming the other end of the laser cavity, the monomodefibre laser being able to generate a laser radiation beam when it is optically pumped by a pumping radiation beam originating from the plurality of pumping laser diodes in order for the laser cavity to emit a high-power pumping laser radiation beam. 1. A high-power optical fiber laser comprising:{'b': '1', 'an oscillator () adapted to emit a source optical signal to be amplified,'}{'b': '5', 'a pump laser () adapted to emit a high-power pump optical radiation,'}{'b': '3', 'a signal-amplifying optical fiber (), adapted to receive said source optical signal and said high-power pump optical radiation,'}characterized in that{'b': 5', '7', '7', '7', '7', '7', '7', '4', '9', '11', '4', '7', '7', '7', '7', '7', '7, 'i': a,', 'b,', 'c,', 'd,', 'e,', 'f', 'a,', 'b,', 'c,', 'd', 'e,', 'f, 'said pump laser () comprises a plurality of multimode pump laser diodes () and a laser cavity, said laser cavity comprising a double-clad fiber including a Neodymium-doped single-mode guide (), an optical fiber Bragg grating () forming an end of said laser cavity and a fiber reflector () forming the other end of said laser cavity, said single-mode laser fiber () being adapted to generate a laser radiation when it is optically pumped by a pump radiation coming from the plurality of pump laser diodes (, ) so that said laser cavity emits a high-power ...
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