An active-passive hybrid mode-locked fiber laser with temperature compensation
A fiber laser, temperature compensation technology, used in lasers, laser parts, phonon exciters, etc., can solve the problems of poor output pulse repetition frequency stability, poor stability, difficult to obtain ultra-narrow pulses, etc., and reach the absorption wavelength range. Large, overcoming poor stability, overcoming the effect of cavity length drift
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Embodiment 1
[0022] Embodiment 1: Concrete structure of the present invention
[0023] The structure of an active-passive hybrid mode-locked fiber laser with temperature compensation of the present invention is shown in the attached figure 1 As shown, the structure is that the pumping light source 1 (980nm laser, the maximum output power is 1W) is connected to the input end of the fifth optical coupler 25 (1×2 standard single-mode optical coupler, the splitting ratio is 10:90) 90% output of the fifth optical coupler 25 is connected with the 980nm end of the wavelength division multiplexer 2 (980 / 1550nm wavelength division multiplexer), and the 1550nm end of the wavelength division multiplexer 2 is connected with the first optical coupler 3 (1×2 standard single-mode optical coupler, the splitting ratio is 10:90) connected to the input end; the 10% output end of the first optical coupler 3 is connected to the adjustable optical fiber filter 4 (produced by Beijing Zhongxun Spectrum Technolog...
Embodiment 2
[0025] Embodiment 2 Working process of the present invention and the effect of each main component
[0026] attached figure 1 In the shown structure, the pump light source 1 is used as the laser pump source of the whole system, the pump light source 1 passes through the fifth optical coupler 25, and a part (90%) of the output enters the system through the wavelength division multiplexer 2; The first optical coupler 3 with a ratio of 10:90 divides the laser light running in the cavity into two parts, one part (90%) is output to the third optical coupler 11, and the other part (10%) continues to resonate in the active mode-locked fiber laser Intra-cavity operation; the third optical coupler 11 with a splitting ratio of 40:60 divides the laser output from the first optical coupler 3 into two parts, one part (60%) is used as the laser output of the entire system, and the other part (40%) Output to the fourth optical coupler 12 as the feedback signal of the system; The adjustable...
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