High energy hybrid thulium-doped pulse laser single-frequency amplifier

A pulsed laser and hybrid technology, applied in lasers, laser components, phonon exciters, etc., to avoid nonlinear effects, mature process structure, and high single-pulse energy.

Inactive Publication Date: 2014-05-14
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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  • High energy hybrid thulium-doped pulse laser single-frequency amplifier
  • High energy hybrid thulium-doped pulse laser single-frequency amplifier
  • High energy hybrid thulium-doped pulse laser single-frequency amplifier

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[0020] see first figure 1 , figure 1 It is a schematic structural diagram of the high-energy hybrid thulium-doped pulse amplifier of the present invention. As can be seen from the figure, the high-energy hybrid thulium-doped pulse laser single-frequency amplifier of the present invention includes: a seed source 1, a wavelength division multiplexer 2, a fiber pump source 3, a polarization-maintaining single-mode single-cladding thulium-doped fiber 4, an isolation 5, beam splitter 6, output end 7, filter 8, acousto-optic modulator 9, semiconductor pump source 10 and laser crystal 11, the continuous seed laser output from the seed source 1 is subjected to the wavelength division complex The device 2 enters the polarization-maintaining single-mode single-cladding thulium-doped fiber 4, and the pump light output from the fiber pump source 3 enters the polarization-maintaining single-mode fiber through the wavelength division multiplexer 2. The single-clad thulium-doped fiber 4 ...

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Abstract

The invention discloses a high energy hybrid thulium-doped pulse laser single-frequency amplifier which comprises a seed resource, a wavelength division multiplexer, an optical fiber pumping source, a polarization-maintaining single-mode single-cladding thulium-doped optical fiber, an isolator, a beam splitter, an output end, a filter, an acoustic optical modulator, a semiconductor pumping source and a laser crystal. The high energy hybrid thulium-doped pulse laser single-frequency amplifier has the advantages of being simple in structure and stable in system, the optical fiber-solid combined method is used, optical fiber amplification is adopted for a prime stage, the capacity for amplifying small signals is effectively improved, crystal amplification is adopted for a post stage, the advantage that solid lasers are prone to generating low-multi-pulse pulsed light is developed, the nonlinear effect easily occurring in optical fiber amplifying under high power is effectively avoided, low-multi-pulse high-energy pulse output is accordingly achieved, and the good application aspect is achieved.

Description

technical field [0001] The invention relates to a thulium-doped laser amplifier, in particular to a high-energy hybrid thulium-doped pulse laser single-frequency amplifier. Background technique [0002] The wavelength range of thulium-doped fiber laser is located in the absorption peak of water molecules, which is safe for human eyes. It has a wide range of application value and application prospects in surgery, remote sensing, industrial processing, atmospheric optical communication, etc., especially for high-energy The demand for laser output is more urgent. At present, most thulium-doped lasers and amplifiers are continuous output, and there are few reports on pulse output lasers. Q-peak has reported a thulium-doped fiber laser exceeding 1kW, and the continuous single-frequency output has reached 608W, but the power density and peak power of the continuous thulium-doped fiber laser are still relatively low. Thulium-doped fiber lasers are more practical, so high-energy s...

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Application Information

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IPC IPC(8): H01S3/131H01S3/094
Inventor 郑亚萌祖继锋朱韧余婷孟俊清陈卫标
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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