1.0-micron ultralow-noise single-frequency optical fiber laser
A fiber laser, ultra-low noise technology, used in lasers, phonon exciters, laser components and other directions, can solve the problems of complex structure, low-frequency noise degradation, and lack of full fiber
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[0030] Such as figure 1 As shown, embodiment 1 provides a 1.0 μm ultra-low noise single-frequency fiber laser, which includes high reflectivity fiber Bragg grating 1, high gain fiber 2, low reflectivity fiber Bragg grating 3, TEC thermoelectric cooler 4, pump Pu laser 5, optical wavelength division multiplexer 6, optical filter 7, optical isolator 8, mid-band intensity noise suppression module 9, and low-band intensity noise suppression module 10.
[0031] The structural relationship between the above components is: one end of the high-reflectivity fiber Bragg grating, two ends of the high-gain fiber, and one end of the low-reflectivity fiber Bragg grating, which are connected in sequence to form the DBR short-line type of the laser. The resonant cavity is placed in a TEC thermoelectric cooler for precise temperature control; the other end of the low reflectivity fiber Bragg grating is connected to the common end of the optical wavelength division multiplexer, and the output end o...
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