1[mu]m dissipative soliton mode-locked laser

A mode-locked laser and dissipative soliton technology, applied in the laser field, can solve the problems of poor system stability, inconvenient for practical application, low coupling efficiency, and bulky space coupling equipment.

Active Publication Date: 2014-04-02
BEIJING UNIV OF TECH
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Problems solved by technology

The ytterbium-doped mode-locked laser is realized by spatial coupling, the coupling efficiency of the system is relatively low, the space coupling equipment is bulky, and the system stability is poor, which is not convenient for practical application

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. However, the examples given are not intended to limit the present invention.

[0028] Such as figure 1 As shown, this embodiment includes a wavelength division multiplexer, a gain fiber 5, an isolator 9, and a coupling output element, wherein a bandpass filter 6, a first polarization controller 7, and a second polarization controller 8 are also included. The division multiplexer, gain fiber 5, bandpass filter 6, first polarization controller 7, isolator 9, second polarization controller 8 and coupling output elements are connected in the order of optical fibers to form an all-fiber ring cavity, and the length of the gain fiber is In order to make it vibrate at four energy levels.

[0029] In the gain fiber, there is a problem of gain competition betwe...

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Abstract

The invention provides a 1[mu]m dissipative soliton mode-locked laser, relating to the technical field of laser and aiming at solving the problems that the coupling efficiency of a system is low, the size of space coupling equipment is huge, the system stability is poor and the actual application is not facilitated because the existing device adopts a space coupling method. The 1[mu]m dissipative soliton mode-locked laser comprises a wavelength division multiplexer, gain fibers, an isolator, a coupling output element, a band-pass filter, a first polarization controller and a second polarization controller, wherein the wavelength division multiplexer, the gain fibers, the band-pass filter, the first polarization controller, the isolator and the second polarization controller are sequentially connected with the coupling output element through optical fibers to form an all-fiber ring cavity, and the length of the gain fibers is arranged to be length for enabling the laser to realize four-level oscillation starting. The 1[mu]m dissipative soliton mode-locked laser not only can be used as a high-brightness and high-beam-quality pumping source for a high-power ytterbium-doped laser, but also can further improve the output power of the ytterbium-doped laser and has a potential of being applied to cold light magnification.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a 1 μm dissipative soliton mode-locked laser. Background technique [0002] Mode-locked fiber lasers are widely used in optical communications, micromachining, and photoelectric detection systems due to their excellent characteristics such as compact structure, low cost, good heat dissipation, and high output beam quality. With the continuous development and progress of fiber optic technology and mode-locking technology, the performance and some parameters of fiber laser output ultrashort pulses have reached or even exceeded that of traditional solid-state femtosecond lasers, and it is expected to become a popular ideal light source for ultrafast laser applications. [0003] Among the many mode-locked fiber lasers, the mode-locked fiber laser with Yb-doped fiber as the gain medium develops most rapidly. The spectral characteristics of ytterbium-doped fiber are mainly determined b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/0941H01S3/098
Inventor 李平雪姚毅飞池俊杰胡浩伟张光举赵自强杨春
Owner BEIJING UNIV OF TECH
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