Mamyshev type laser oscillator with nonlinear loop filter
A technology of laser oscillator and loop filtering, which is applied in the direction of lasers, laser parts, phonon exciters, etc., can solve the problems of difficult ultrashort pulse laser sequence, difficult to realize self-starting, poor self-starting performance of lasers, etc.
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Embodiment 1
[0026] The Mamyshev type laser oscillator of the nonlinear loop filter of the present embodiment is as figure 1 As shown, it includes a first nonlinear optical loop mirror 100 , a second nonlinear optical loop mirror 200 and a stretch amplifier 300 with a ring bilateral amplification structure.
[0027] The first nonlinear optical loop mirror 100 includes a first wavelength division multiplexer 101, a first gain fiber 102, a first filter 103, a first phase shifter 104, a first coupler 105 and a first pump source 106, Wherein the first pump source 106, the first wavelength division multiplexer 101 and the first gain fiber 102 form the first optical amplifier; the second nonlinear optical loop mirror 200 includes the second wavelength division multiplexer 201, the second gain fiber 202, the second filter 203, the second phase shifter 204, the second coupler 205 and the second pumping source 206, wherein the second pumping source 206, the first wavelength division multiplexer 201...
Embodiment 2
[0038] The Mamyshev type laser oscillator of the nonlinear loop filter of the present embodiment is as figure 2 As shown, the stretching amplifier 300 comprising a first nonlinear optical loop mirror 100, a second nonlinear optical loop mirror 200 and a linear bidirectional amplification structure, wherein the first nonlinear optical loop mirror 100, the second nonlinear optical loop mirror 200 and The first nonlinear optical loop mirror 100 and the second nonlinear optical loop mirror 200 in Embodiment 1 have the same structure, the difference is that the first phase shifter 104 and the second phase shifter 204 of this embodiment provide -π / 2, so as to ensure that the nonlinear optical loop mirrors 100 and 200 are reflective outputs, so that the pulsed laser output from one of the nonlinear optical loop mirrors can be output to another nonlinear optical loop mirror through the stretching amplifier 300; the coupler 105 The output terminals of , 205 are used to output high-en...
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