Radio frequency modulation tunable all-fiber laser with stable power control

Abstract

The invention discloses a radio frequency modulation tunable all-fiber laser with stable power control. The radio frequency modulation tunable all-fiber laser is characterized in that a first fiber annular mirror, a double-clad non-doped fiber, a double-clad doped fiber, a signal light channel of a wavelength division multiplexer and a second fiber annular mirror are sequentially in butt fusion end to end, a second arm of the first fiber annular mirror is connected with a light power meter, the light power meter is connected with a controllable semiconductor laser power source, and the controllable semiconductor laser power source is connected with a pumping source; the pumping source is in butt fusion with a pumping light channel of the wavelength division multiplexer, and a second arm of the second fiber annular mirror is connected with an output tail fiber; the double-clad non-doped fiber is wound on a fiber fixing stretching support; a piezoelectric ceramic is connected with a radio-frequency power source. The radio frequency modulation tunable all-fiber laser with the stable power control has the advantages that an all-fiber structure without discrete components is adopted, insertion loss is avoided, beam quality is high, output power is high, structure is compact, performance is stable and reliable, and continuous tuning in a wide range can be achieved.

Description

technical field [0001] The invention belongs to the field of laser technology, in particular to a fiber laser, in particular to a radio frequency modulation tunable all-fiber laser with power stability control. Background technique [0002] Fiber lasers are developing rapidly due to their small size, high efficiency, good stability, and good beam quality. At present, in fiber lasers, the common tunable laser technology is mainly based on rotating grating, compound ring resonance, adjusting the angle of intracavity etalon, using acousto-optic filter, electrically adjustable liquid crystal etalon, fiber grating tuning, fiber ring, sampling grating And polarization control and other technologies, either adopt non-full fiber structure, or the grating used is inconvenient to adjust the efficiency is low, or the adjustment range is relatively narrow, or the output power is too small, and there is a problem that the output power of the laser varies with the output during the tuning...

AI Technical Summary

Problems solved by technology

At present, in fiber lasers, the common tunable laser technology is mainly based on rotating grating, compound ring resonance, adjusting the angle of intracavity etalon, using acousto-optic filter, electrically adjustable liquid crystal etalon, fiber grating tuning, fiber ring, sampling grating And polarization control and other technologies, either adopt non-full fiber structure, or the grating used is inconvenient to adjust the efficiency is low, or the adjustment range is relatively narrow, or the output power is too small, and there is a problem that the output power of the laser varies with the output during the tuning process. The problem with changing wavelengths

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