Random fiber laser for hybrid of a special fiber and a standard single mode fiber
A random laser and single-mode fiber technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of difficult output of high-order random lasers and high threshold pump power, and achieve the control of output power and spectrum. Flexible optimization, low pump threshold, and stable output
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[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0016] exist figure 1 Among them, the pump light source 1 couples the light wave from the front end to the standard single-mode fiber 5 and the special fiber 6 through a port 2 of the WDM3, thus providing random feedback and gain, and the fiber end 7 is the output port of the random laser; if it is also connected With the Fiber Bragg Grating FBG4, the feedback in the fiber laser is provided by the Fiber Bragg Grating FBG4 together with the randomly distributed Rayleigh scattering in the standard single-mode fiber 5 and the dispersion compensating fiber 6 .
[0017] figure 2 The laser output power diagram of an embodiment of the fiber random laser is given. Among them, the wavelength of the pump light source 1 is 1366nm, the pump power changes gradually from low to high, the pump light passes through the WDM3 of 1365 / 1461nm, and the common te...
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