A Broadband Linear Frequency Modulation Narrow Linewidth Fiber Laser and Its Realization Method
A technology of linear frequency modulation and fiber laser, which is applied in the direction of lasers, laser components, phonon exciters, etc., to achieve the effects of high frequency modulation linearity, fast modulation speed and simple structure
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[0039] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0040] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0041] refer to figure 1 , 1.5 micron broadband linear frequency modulation narrow linewidth fiber laser consists of: narrow linewidth seed source 1, dual parallel phase modulator 2, radio frequency signal source 3, modulator driver 4, fiber splitter 5, fiber amplifier 6, optical fiber The output end 7 of the beam splitter and the output end 8 of the optical fiber amplifier. in:
[0042] The narrow linewidth seed source 1 outputs linearly polarized continuous laser light with a wave...
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