A 1.7μm Fiber Laser Amplifier
A fiber laser and amplifier technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problem of signal light gain reduction, achieve the effects of suppressing signal gain saturation effect, good stability, and reducing reabsorption
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[0027] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:
[0028] see figure 1 , a kind of 1.7 μm fiber laser amplifier provided by the present invention, its concrete structure mainly is by signal source 1, optical isolator 2, pumping source 3, wavelength division multiplexer 4, thulium-doped silica fiber 5, band-pass filter 6. Composed of thulium-doped silica fiber 7, bandpass filter 8, thulium-doped silica fiber 9, fiber Bragg grating (FBG) 10, wavelength division multiplexer 11 and fiber jumper head 12. Wherein, the pumping source 3 is welded with the pump arm of the wavelength division multiplexer 4; one end of the optical isolator 2 is welded with the signal source 1, and the other end is welded with the signal injection end of the wavelength division multiplexer 4; One end of the quartz fiber 5 is fused with the bundle end of the wavelength division multiplexer 4, and the other end is fused with the end of t...
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