Chirped pulse amplification fiber laser system without stretcher

A fiber laser and chirped pulse technology, applied in the laser field, can solve the problems of high energy pulse lasers such as large volume, high price, and high requirements for installation and debugging accuracy, and achieve the limit of reducing the optical damage threshold, large mode field area, excellent Amplifying the effect of laser beam quality

Inactive Publication Date: 2010-07-07
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The purpose of the present invention is to provide a chirped pulse amplified fiber laser system without a stretcher, which solves the technical problems of large energy pulse lasers in the background technology, such as large volume, high price, and high requirements for installation and debugging accuracy.

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  • Chirped pulse amplification fiber laser system without stretcher
  • Chirped pulse amplification fiber laser system without stretcher
  • Chirped pulse amplification fiber laser system without stretcher

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Embodiment Construction

[0026] see figure 1 :

[0027] A chirped pulse amplified fiber laser system without a stretcher, the system includes an "8" cavity mode-locked fiber laser 1, and a pulse selector connected to the output of the "8" cavity mode-locked fiber laser 1 through an optical fiber 2, the single-mode fiber amplifier 3 connected to the output of the pulse selector 2 through the optical fiber, the double-clad ytterbium-doped photonic fiber 6 connected after focusing, and the double-clad ytterbium-doped photonic fiber 6 connected to the other end of the double-clad ytterbium photonic fiber 6 mirror 7; the single-mode fiber amplifier is also connected to a single-mode pump source 9 through an optical fiber, and the system also includes a pump source 8.

[0028] It works as follows:

[0029] The stretcher-free fiber laser system generates ultrashort laser pulses through an "8" cavity mode-locked laser. The principle is to use the all-fiber Sagnac interferometer as a nonlinear fiber optic l...

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Abstract

The invention relates to a fiber laser system without a stretcher. The system comprises a 'figure-eight' cavity mode locking fiber laser, a pulse menu selecting device, a single-mode fiber amplifier, dual-cladding ytterbium-doped photonic fibers, a dichroic mirror, a pumping source, wherein the pulse menu selecting device is connected with the output of the 'figure-eight' cavity mode locking fiber laser through fibers; the single-mode fiber amplifier is connected with the output of the pulse menu selecting device through the fibers; the dual-cladding ytterbium-doped photonic fibers are connected after focusing; the dichroic mirror is connected with the other end of the dual-cladding ytterbium-doped photonic fibers; and the single-mode fiber amplifier is also connected with a single-mode pumping source through the fibers. The fiber laser system solves the technical problems of large volume , high cost, high requirements of accuracy of installation and debugging and the like of large-energy pulsed lasers in the background technology, has the characteristics of large core diameter and single-mode transmission and has the advantage of high quality of amplified laser beams.

Description

technical field [0001] The invention relates to laser technology, in particular to a chirped pulse amplifying fiber laser system without a stretcher. Background technique [0002] At present, the ultra-short pulse laser system using optical fiber as laser generation, amplification and transmission is a high-energy, short-pulse laser source with higher practical value after the Ti:Sapphire laser system. The soft and light characteristics of optical fiber and the compact structure of optical fiber devices enable fiber lasers and fiber laser chirped pulse amplifiers to greatly reduce volume, weight, improve reliability, and reduce equipment maintenance costs. Laboratory, providing protection for entering industrial, military, medical and other application fields. However, in many applications, ultrashort pulse lasers are required to have high energy. To achieve high energy amplification of short pulse lasers, the "chirped pulse amplification" technology called CPA is the solut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/10H01S3/067
Inventor 赵卫杨直王屹山张伟
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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